500 Mcq Mines Act 1952

Part-2 MCQ Mines Act 1952 Of DGMS Exam

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Mines Act,1952 is the core legislation that governs safety, health, and working conditions inside mines across India. It defines the responsibilities of mine owners, managers, and workers, while setting strict standards for working hours, employment restrictions, accident reporting, medical surveillance, and welfare facilities.

The Mines Act also empowers the Central Government and DGMS (Directorate General of Mines Safety) to issue regulations, inspect mines, and enforce compliance.

Mines Act 1952 – MCQ Test | MineMitra
Mines Act 1952 – MCQ Test (MineMitra)

Table of Contents

201. Who must ensure that emergency ladders are provided where required?

  1. Only workers
  2. Mine management
  3. Local police
  4. Only visitors
Answer: b)
Management is responsible for providing safe escape routes including ladders where necessary.

202. What is essential before starting blasting operations?

  1. Only purchase explosives
  2. Clearance, warning signals and qualified blaster
  3. Only supervisor approval
  4. No special action
Answer: b)
Blasting needs qualified personnel, warning procedures and safety clearances to protect workers.

203. Who should maintain the register of explosives?

  1. Supplier
  2. Mine management
  3. Workers’ union
  4. Public authority
Answer: b)
Management must keep records of storage, issue and use of explosives for control and audits.

204. Which is required for new employees on day one?

  1. No briefing
  2. Induction on hazards and emergency procedures
  3. Only salary discussion
  4. Only ID issuance
Answer: b)
Induction ensures workers know site hazards, safe practices and emergency actions from the start.

205. What is the minimum action when hazardous dust is found?

  1. Ignore it
  2. Control by suppression, ventilation and PPE
  3. Only report later
  4. Only close area
Answer: b)
Dust must be managed at source with engineering controls, and PPE used where required.

206. Who should ensure that ladders are safe and inspected?

  1. Worker alone
  2. Mine management
  3. Only external contractors
  4. No one
Answer: b)
Regular inspection and maintenance of ladders is a management responsibility to avoid falls.

207. What is the correct action if gas levels exceed safe limit?

  1. Continue work
  2. Evacuate, ventilate and control until safe
  3. Only monitor remotely
  4. Only report at shift end
Answer: b)
Immediate evacuation and remedial ventilation controls are necessary to prevent explosions or toxicity.

208. What should be in place for high-risk hot works?

  1. Only a fire extinguisher
  2. Hot work permit, fire watch and controls
  3. No controls
  4. Only supervisor presence
Answer: b)
Hot work permits and fire watches prevent ignition of combustible materials during welding/cutting.

209. Who must ensure availability of firefighting water supply?

  1. Only local authority
  2. Mine management
  3. Only suppliers
  4. No one
Answer: b)
A reliable water supply or alternatives must be arranged by management for firefighting readiness.

210. What must be checked before re-energising electrical equipment?

  1. Nothing special
  2. Lockout-tagout completed and isolation verified
  3. Only visual inspection
  4. Only supervisor’s verbal ok
Answer: b)
Lockout-tagout prevents accidental energisation and protects maintenance personnel.

211. Who should approve changes to work procedures?

  1. Any worker
  2. Authorized management after risk assessment
  3. Only contractor
  4. No approval needed
Answer: b)
Procedure changes require assessment and authorization to ensure continued safety.

212. What is required for safe use of flammable liquids?

  1. Only store openly
  2. Use proper containers, ventilation and spill kits
  3. Only use outdoors
  4. No special measures
Answer: b)
Spill prevention, correct storage and emergency response reduce fire and contamination risks.

213. Who must ensure PPE is maintained in usable condition?

  1. Only worker
  2. Mine management
  3. PPE manufacturer
  4. No one
Answer: b)
Management must ensure PPE is available, maintained and replaced when damaged or expired.

214. What action must follow a near-miss incident?

  1. Ignore it
  2. Investigate and implement corrective actions
  3. Only report annually
  4. Only inform worker
Answer: b)
Near-miss investigations prevent recurrence by addressing root causes before harm occurs.

215. Who should maintain rescue equipment readiness?

  1. Only rescue team
  2. Mine management to test and maintain regularly
  3. Only external agencies
  4. No maintenance
Answer: b)
Equipment must be functional and available—management ensures testing and servicing schedules.

216. Which is best practice for traffic routes in mines?

  1. No segregation
  2. Separate pedestrian routes and clear signage
  3. Only speed bumps
  4. Only one route for all
Answer: b)
Segregated paths and signs reduce collision risk between vehicles and people.

217. What is required before operating lifting equipment?

  1. Only operator’s verbal consent
  2. Pre-use inspection and certified operator
  3. No checks
  4. Only after heavy load
Answer: b)
Inspections and certified operators prevent mechanical failures and misuse during lifts.

218. Who should ensure that signage is visible and legible?

  1. Only contractors
  2. Mine management
  3. No one
  4. Only unions
Answer: b)
Visible signage communicates hazards and directions; maintenance falls on management.

219. What must be done with damaged PPE?

  1. Continue using it
  2. Replace or repair immediately
  3. Only mark as damaged
  4. Only report monthly
Answer: b)
Damaged PPE may not protect; prompt replacement is necessary to maintain safety.

220. What should be done when a safety complaint is received?

  1. Ignore it
  2. Investigate promptly and take corrective action
  3. Only forward to HR
  4. Only record and close
Answer: b)
Timely investigation addresses hazards and builds trust in the safety system.

221. Which is important for storage of hazardous chemicals?

  1. Store openly
  2. Use labeled, secure, ventilated storage and secondary containment
  3. No labeling
  4. Store near meals
Answer: b)
Secure and labeled storage prevents accidental exposure and simplifies emergency response.

222. What must be provided for night work in terms of safety?

  1. No additional measures
  2. Adequate lighting, supervision and rest to mitigate risks
  3. Only extra pay
  4. Only transport
Answer: b)
Night conditions increase risk; proper lighting and oversight are essential for safety.

223. Who must control ignition sources in flammable atmospheres?

  1. Only workers
  2. Mine management via procedures and permits
  3. No control
  4. Only contractors
Answer: b)
Management must manage ignition sources through controls and permit systems to avoid fires/explosions.

224. What is the role of a trained first-aider on site?

  1. No role
  2. Provide immediate care, stabilize and arrange medical evacuation
  3. Only fill forms
  4. Only supervise
Answer: b)
First-aiders save lives by providing timely care and arranging further medical support.

225. What must be reviewed after every major incident?

  1. Only HR policies
  2. Incident causes, controls, and effectiveness of response
  3. No review
  4. Only media statements
Answer: b)
Learning from incidents improves systems and prevents recurrence.

226. What is required for electrically powered hand tools?

  1. No requirement
  2. Insulation, earthing and regular inspection
  3. Only labels
  4. Only operator training
Answer: b)
Electrical safety features and checks prevent shocks and equipment failures.

227. Who must ensure emergency contact information is available?

  1. Only workers
  2. Mine management
  3. Only contractors
  4. No one
Answer: b)
Accessible emergency contacts ensure quick coordination with services and families when needed.

228. What is required for breathing apparatus training?

  1. No training
  2. Hands-on drills, fit checks and refresher training
  3. Only video instruction
  4. Only written instructions
Answer: b)
Practical training ensures proper use and confidence during emergencies requiring breathing gear.

229. Which is required for managing steep slopes?

  1. No control
  2. Stability analysis, benching and drainage
  3. Only signs
  4. Only temporary fencing
Answer: b)
Geotechnical controls and drainage reduce landslide risks on slopes and benches.

230. What must be done with obsolete equipment?

  1. Keep using it
  2. Decommission, tag out and safely remove or refurbish
  3. Only store it
  4. Only sell without checks
Answer: b)
Obsolete equipment may be unsafe; controlled decommissioning prevents accidental use or failures.

231. Which is essential during confined space rescue?

  1. No plan
  2. Trained rescue team, communication and atmospheric monitoring
  3. Only a rope
  4. Only a torch
Answer: b)
Rescue from confined spaces is high risk—specialised teams and monitoring are mandatory.

232. What is required for mobile plant isolation during maintenance?

  1. No isolation
  2. Apply isolation procedures, blocks and locks before work
  3. Only stop engine
  4. Only supervision
Answer: b)
Physical isolation prevents unexpected movement and reduces maintenance hazards.

233. Who should ensure that chemical safety data sheets (SDS) are available?

  1. Only supplier
  2. Mine management
  3. No one
  4. Only contractors
Answer: b)
SDS inform safe handling and emergency actions; management must make them accessible to workers.

234. What should be done when a safety standard is updated?

  1. Ignore updates
  2. Review, update procedures and train staff accordingly
  3. Only store the document
  4. Only inform managers
Answer: b)
Standards changes require operational updates and staff training to maintain compliance.

235. What must be done for workers with medical restrictions?

  1. Ignore restrictions
  2. Assign suitable duties and monitor condition
  3. Only allow leave
  4. No special action
Answer: b)
Adjusting duties protects health while keeping the workforce productive within safe limits.

236. Who must ensure barricading of unstable areas?

  1. Only workers
  2. Mine management to isolate and restrict access
  3. Only local authority
  4. No action
Answer: b)
Barricading prevents accidental entry and reduces risk of injury from unstable ground or structures.

237. What must be verified before entering an area after a gas alarm?

  1. Only manager’s OK
  2. Atmosphere testing and clearance by a competent person
  3. No verification
  4. Only wait 5 minutes
Answer: b)
Testing and clearance ensure safe re-entry without exposing workers to harmful gases.

238. What should be included in toolbox talks?

  1. Only daily schedule
  2. Site hazards, task risks and control measures for the shift
  3. Only administrative notes
  4. No talk needed
Answer: b)
Toolbox talks keep safety front-of-mind for tasks and ensure awareness of immediate hazards.

239. Who must ensure that emergency exits are unlocked during operations?

  1. No one
  2. Mine management
  3. Only security guards
  4. Only fire brigade
Answer: b)
Exits must be usable at all times to allow quick evacuation during emergencies.

240. What must be done before using a lifting sling?

  1. Only attach it
  2. Inspect for wear, ensure rated capacity and correct rigging
  3. No checks
  4. Only after failure
Answer: b)
Pre-use checks prevent sling failure and dropped loads that can cause severe injury.

241. What is a core duty of a site safety officer?

  1. Only bookkeeping
  2. Inspect, report hazards and recommend corrective actions
  3. Only training new hires
  4. No duties
Answer: b)
Safety officers monitor conditions and drive corrective measures to maintain compliance and safety.

242. What must be controlled when refuelling equipment?

  1. Only speed
  2. Engine off, no smoking, spill containment and trained personnel
  3. No controls
  4. Only supervisor presence
Answer: b)
Safe refuelling prevents fires and environmental spills; procedures and training are necessary.

243. Who must ensure that electrical switchboards are accessible for maintenance?

  1. Only electricians
  2. Mine management to provide safe access and isolation
  3. No one
  4. Only contractors
Answer: b)
Safe access and lockout procedures enable maintenance without exposing personnel to live parts.

244. What must be included in an evacuation plan?

  1. Only exit maps
  2. Routes, assembly points, roles, communication and drill schedule
  3. No plan needed
  4. Only contact numbers
Answer: b)
A robust plan coordinates safe evacuation and should be practised regularly.

245. What should be verified after maintenance before returning plant to service?

  1. Only paperwork
  2. Functional test, isolation removal and safety checks
  3. No verification
  4. Only operator opinion
Answer: b)
Testing after maintenance confirms safe operation and prevents immediate failures on restart.

246. Who must ensure that training attendance is recorded?

  1. No one
  2. Mine management to track and retain training records
  3. Only trainers
  4. Only workers
Answer: b)
Records show who received which training—useful for audits and competency proof.

247. What must be done if a safety device is bypassed temporarily?

  1. Leave it bypassed
  2. Document reason, get authorization and restore device ASAP
  3. No documentation
  4. Only inform peers
Answer: b)
Temporary bypasses increase risk—controls and records ensure accountability and timely restoration.

248. What must be included in contractor inductions?

  1. Only security rules
  2. Site hazards, safe work procedures and emergency arrangements
  3. No induction
  4. Only payment terms
Answer: b)
Contractors must understand site-specific risks and how to work safely within the mine’s systems.

249. What is required for warning systems in noisy areas?

  1. Only visual alarms
  2. Audible and visual alarms with redundancy to ensure noticeability
  3. No alarm required
  4. Only word of mouth
Answer: b)
Redundant alarms ensure workers are alerted even when noise may mask single warning types.

250. What must be ensured when storing solar or battery equipment?

  1. No measures
  2. Proper ventilation, fire control and secure storage
  3. Only chargers
  4. Only outdoors
Answer: b)
Battery storage risks (thermal runaway) require ventilation, monitoring and fire suppression.

251. Who must ensure that isolation points are tagged?

  1. Only electricians
  2. Mine management via lockout-tagout procedures
  3. No one
  4. Only contractors
Answer: b)
Tagging isolates makes clear who applied the lock and why, preventing accidental restart.

252. What is required if a worker is exposed to a hazardous chemical?

  1. Ignore exposure
  2. Decontaminate, provide medical check and report the exposure
  3. Only remove worker
  4. Only document later
Answer: b)
Immediate decontamination and medical attention reduce health consequences and inform controls.

253. Who should control access to high-risk plant rooms?

  1. Anyone
  2. Authorized personnel only, with clear signage and locks
  3. Only during daytime
  4. No control
Answer: b)
Restricting access prevents untrained people from entering hazardous zones and causing incidents.

254. What should be done with hazardous waste drums showing leaks?

  1. Continue to store
  2. Secure, contain, transfer to safe containers and clean spill
  3. Only label as leaking
  4. Only bury on-site
Answer: b)
Prompt containment and transfer prevent contamination and exposure risks to people and environment.

255. What must be verified after an alarm test?

  1. Only that it sounded
  2. Functionality, coverage and any faults noted for repair
  3. No verification
  4. Only notify manager
Answer: b)
Testing ensures alarms reach all areas and any problems are quickly fixed to maintain readiness.

256. What is required for hot material handling?

  1. No controls
  2. Heat-resistant PPE, barriers and cooling procedures
  3. Only water spray
  4. Only supervisor watch
Answer: b)
Managing heat risks protects workers from burns and structural fires.

257. Who must verify competency of new equipment operators?

  1. Only operators themselves
  2. Mine management via training and assessment
  3. No verification
  4. Only manufacturer
Answer: b)
Competency checks ensure safe operation and reduce the chance of operator error leading to incidents.

258. What must be kept in vehicle cabs for emergencies?

  1. No items
  2. First-aid kit, fire extinguisher and communication device
  3. Only paperwork
  4. Only tools
Answer: b)
Emergency tools in cabs enable immediate response to injuries or small fires before help arrives.

259. What is required for storage of lithium batteries?

  1. Store near heat
  2. Cool, ventilated, segregated area with spill and fire controls
  3. No controls
  4. Only outdoors
Answer: b)
Lithium battery incidents can escalate—safe storage reduces fire and thermal runaway risks.

260. Who must ensure safety signage is translated for the workforce?

  1. No translation needed
  2. Mine management to provide in languages understood by workers
  3. Only supervisors
  4. Only unions
Answer: b)
Clear communication of hazards requires signage in languages the workforce understands.

261. What must be done when a piece of equipment repeatedly fails inspection?

  1. Keep using it
  2. Withdraw from service, repair/replace and investigate root cause
  3. Only document failures
  4. Only notify manufacturer
Answer: b)
Removing unsafe equipment protects workers while long-term fixes and investigations address causes.

262. What is required for temporary electrical installations?

  1. No controls
  2. Protected cabling, RCDs and inspection before use
  3. Only tape joints
  4. Only at night
Answer: b)
Temporary electrics must meet safety standards to prevent shocks and fires during temporary works.

263. Who must ensure that work permits are signed and valid?

  1. Worker alone
  2. Responsible supervisor and permit issuer
  3. No signature needed
  4. Only management at end of day
Answer: b)
Signed permits confirm risk assessment and authorisation for hazardous tasks.

264. What must be done when a change in site conditions occurs?

  1. Ignore changes
  2. Reassess risks and update controls and communications
  3. Only inform union
  4. Only change signage
Answer: b)
Dynamic risk management adapts protections to new hazards or altered conditions on site.

265. What is required for managing contractor performance?

  1. No management
  2. Monitor, audit and enforce site safety standards
  3. Only pay invoices
  4. Only check insurance
Answer: b)
Active oversight ensures contractors follow the mine’s safety systems and controls.

266. Who must approve removal of permanent safety guards?

  1. Any worker
  2. Authorized manager after risk assessment
  3. No approval needed
  4. Only equipment supplier
Answer: b)
Removing guards increases risk—formal approval and mitigation are required before removal.

267. What must be done to vehicle routes before heavy rains?

  1. No preparation
  2. Inspect, clear drains and reinforce vulnerable sections
  3. Only post notices
  4. Only reduce traffic
Answer: b)
Preventative maintenance reduces flood damage and preserves safe access during rains.

268. What must be provided for workers in remote camps?

  1. No facilities
  2. Sanitation, potable water, shelter and medical access
  3. Only shelter
  4. Only transport
Answer: b)
Basic welfare facilities protect health and morale for remote-site workers.

269. Who must ensure training refreshers are scheduled?

  1. No one
  2. Mine management to maintain competency and update skills
  3. Only unions
  4. Only new hires
Answer: b)
Refresher training keeps skills current and addresses procedural changes or observed gaps.

270. What must be done with pavement oil spills?

  1. Ignore them
  2. Contain, clean up promptly and dispose of waste correctly
  3. Only cover with soil
  4. Only notify later
Answer: b)
Timely cleanup prevents slips and environmental contamination; disposal must meet regulations.

271. What is required for working at heights?

  1. No requirements
  2. Fall protection, harnesses and edge protection
  3. Only ladders
  4. Only supervision
Answer: b)
Fall protection systems prevent severe injuries from height-related incidents.

272. Who must ensure that emergency drills are held?

  1. No one
  2. Mine management to test preparedness and response times
  3. Only fire brigade
  4. Only workers
Answer: b)
Drills validate plans and ensure people know their roles during real emergencies.

273. What must be kept for traceability of hazardous material use?

  1. No records
  2. Issue logs, usage records and disposal records
  3. Only supplier invoices
  4. Only batch numbers
Answer: b)
Traceability helps investigations and ensures accountable handling of hazardous materials.

274. Who must ensure that mud and debris are cleared from walkways?

  1. No one
  2. Site housekeeping team under management oversight
  3. Only workers
  4. Only contractors
Answer: b)
Good housekeeping prevents slips, trips and improves overall site safety.

275. What must be done to ensure visibility in dusty areas?

  1. Ignore dust
  2. Use dust suppression, lighting and PPE to maintain visibility
  3. Only slow vehicles
  4. Only use mirrors
Answer: b)
Combining suppression and lighting ensures safer operations where dust reduces visibility.

276. What must be done for storage of compressed gas cylinders?

  1. Store horizontally
  2. Store upright, secured and segregated by type
  3. No special storage
  4. Only label them
Answer: b)
Proper storage prevents cylinder damage, leaks or explosive risks.

277. What must be ensured for secure storage of keys to critical isolation points?

  1. Anyone can access keys
  2. Controlled access, key logs and authorized custody
  3. No logging required
  4. Only supervisor access
Answer: b)
Controlled key custody prevents unauthorized energisation or access to hazardous areas.

278. What must be done before allowing lone working?

  1. Allow without checks
  2. Risk assessment, procedures, communication and regular check-ins
  3. Only give extra pay
  4. No rules
Answer: b)
Lone work adds risk—controls and monitoring are needed to ensure safety and prompt response.

279. What must be done with electrical testing records?

  1. No retention
  2. Keep records of tests, repairs and calibrations for inspection
  3. Only verbal note
  4. Only keep for one day
Answer: b)
Test records demonstrate due diligence and help track recurring faults for corrective action.

280. Who must ensure that machine guards are replaced after maintenance?

  1. Only worker
  2. Authorized maintenance personnel and supervisor verification
  3. No one
  4. Only manufacturer
Answer: b)
Verification ensures guards are reinstalled before machine restart to prevent access to moving parts.

281. What must be included in pre-start checks?

  1. Only fuel levels
  2. Functional tests, safety devices and visible defects checks
  3. No checks
  4. Only cleanliness
Answer: b)
Pre-start checks identify immediate faults and reduce risk when equipment is put into service.

282. What should be done with obsolete chemical containers?

  1. Refill them
  2. Decontaminate and dispose through licensed handlers
  3. Only store them
  4. Only burn them
Answer: b)
Safe disposal prevents contamination and maintains regulatory compliance.

283. What must be done to confirm competency after training?

  1. No confirmation
  2. Assessment, certification and record in training file
  3. Only attendance
  4. Only supervisor note
Answer: b)
Assessment shows the worker can perform tasks safely and provides evidence for audits.

284. What should be done for hazardous material transport on-site?

  1. No controls
  2. Use designated routes, secure loads and emergency plans
  3. Only speed limits
  4. Only labeling
Answer: b)
Safe transport mitigates spill and collision risks and ensures readiness for incidents.

285. Who must ensure plant manuals are available to operators?

  1. No one
  2. Mine management to provide accessible manuals and training
  3. Only manufacturers
  4. Only contractors
Answer: b)
Manuals guide safe operation and maintenance; management must ensure availability and training.

286. What action is needed when a worker reports dizziness after exposure?

  1. Ignore
  2. Remove from exposure, provide medical check and investigate cause
  3. Only rest them
  4. Only send home
Answer: b)
Medical review and investigation determine cause and protect other workers from similar exposure.

287. What should be done when access ladders are damaged?

  1. Continue using
  2. Withdraw, barricade and repair or replace immediately
  3. Only report
  4. Only after shift
Answer: b)
Damaged access creates fall risks—remove from use until fixed to protect workers.

288. Who must ensure that load charts are available for lifting equipment?

  1. No one
  2. Mine management and operators to follow rated capacities
  3. Only manufacturers
  4. Only contractors
Answer: b)
Load charts prevent overloading and ensure lifts are within safe operational limits.

289. What is required for storage of perishable supplies at remote camps?

  1. No refrigeration
  2. Proper refrigeration, hygiene and pest control
  3. Only dry storage
  4. No controls
Answer: b)
Food safety prevents illness among workers and maintains camp health standards.

290. Who must ensure that emergency lighting batteries are charged?

  1. No one
  2. Mine management with scheduled checks
  3. Only electricians
  4. Only contractors
Answer: b)
Charged emergency lighting ensures visibility during power outages for safe evacuation.

291. What must be checked before allowing re-entry into a flooded area?

  1. Only wait 1 hour
  2. Stability, electrical safety and clearance by competent person
  3. No checks
  4. Only pumps running
Answer: b)
Flooded areas may hide hazards; thorough checks ensure safe re-entry for personnel.

292. What must be ensured for storage of PPE spares?

  1. No storage needed
  2. Appropriate sizes, conditions and accessibility for replacement
  3. Only one size
  4. Only in manager’s office
Answer: b)
Having spares in multiple sizes ensures workers can always replace damaged PPE promptly.

293. Who must ensure safety during handover between shifts?

  1. No one
  2. Outgoing and incoming supervisors with documented briefing
  3. Only workers
  4. Only managers at end of day
Answer: b)
Clear handovers communicate hazards and ongoing controls to maintain continuity of safety.

294. What must be done to unauthorized drilling sites?

  1. Proceed as usual
  2. Stop work, assess permitting and safety, and regularize before continuing
  3. Only notify manager
  4. No action
Answer: b)
Unauthorized works may lack controls; formal approval and safety checks are required before resumption.

295. What must be provided for workers returning from sick leave with safety-critical duties?

  1. No checks
  2. Fitness for duty assessment and re-induction if necessary
  3. Only manager approval
  4. Only HR clearance
Answer: b)
Ensuring fitness prevents accidents caused by medical incapacity while performing critical tasks.

296. What is required when a new contractor method is introduced?

  1. No action
  2. Risk assessment, permit and supervision until proven safe
  3. Only cost approval
  4. Only supervisor review
Answer: b)
New methods can create unknown risks—trial under control reduces chance of incidents.

297. Who must ensure that emergency signage points to assembly areas?

  1. No one
  2. Mine management to install and maintain clear directional signage
  3. Only fire brigade
  4. Only security
Answer: b)
Clear directions reduce confusion and speed up safe evacuation to assembly points.

298. What must be controlled for mobile phone use in hazardous areas?

  1. Allow unlimited use
  2. Restrict to non-hazardous zones or use intrinsically safe devices
  3. No restriction
  4. Only during breaks
Answer: b)
Phones can spark—controls prevent ignition in flammable atmospheres; intrinsically safe devices mitigate risk.

299. What must be done when a near-miss involves equipment?

  1. Ignore it
  2. Investigate, tag equipment and rectify defects before reuse
  3. Only report monthly
  4. Only note in log
Answer: b)
Equipment-related near-misses indicate mechanical risks—take equipment out of service until fixed.

300. What is the final step after corrective actions are completed?

  1. Resume work immediately without checks
  2. Verify effectiveness, update records and communicate lessons learned
  3. Only file paperwork
  4. Only inform manager
Answer: b)
Verification and communication close the loop—ensuring fixes worked and preventing repeat incidents.

301. Who must ensure that entry permits for confined spaces are issued?

  1. Any worker
  2. Authorized permit issuer under management
  3. Only contractors
  4. No permit needed
Answer: b)
Permit systems control risk and ensure checks (atmosphere, rescue, PPE) are in place before entry.

302. What must be done before starting earthworks near an excavation?

  1. Start immediately
  2. Check stability, utilities and install supports if necessary
  3. Only mark boundary
  4. No checks required
Answer: b)
Assessing stability and underground services prevents collapse and service strikes during earthworks.

303. Who must ensure emergency medical transport arrangements?

  1. Only workers
  2. Mine management to arrange ambulance or transfer options
  3. Only local hospitals
  4. No arrangements
Answer: b)
Timely medical transfer can save lives; management must pre-arrange transport for remote sites.

304. What must be done when a warning device is mute on test?

  1. Ignore it
  2. Record fault, repair immediately and re-test
  3. Test again later
  4. Only notify manager
Answer: b)
Faulty alarms compromise safety; immediate repair and verification are required.

305. Who should approve scaffolding design for mining works?

  1. Any worker
  2. Competent person/engineer authorized by management
  3. No approval needed
  4. Only contractor
Answer: b)
Scaffold design must be certified by a competent person to ensure safe load capacity and stability.

306. What is required when training content changes?

  1. No action
  2. Update materials and retrain relevant staff
  3. Only note the change
  4. Only inform managers
Answer: b)
Changed content must be delivered to ensure all staff have up-to-date procedures and knowledge.

307. Who is responsible for ensuring traffic speed limits on site?

  1. Only drivers
  2. Mine management through signage and enforcement
  3. No one
  4. Only contractor managers
Answer: b)
Management must set and enforce speed limits to prevent vehicle accidents on site.

308. What must be provided for electrical testing personnel?

  1. No training
  2. Competence training and appropriate PPE
  3. Only tools
  4. Only supervisor accompaniment
Answer: b)
Competent testing and PPE reduce risk during high-voltage or live-testing activities.

309. What must be done before using temporary heaters in camps?

  1. Use anywhere
  2. Check ventilation, clearances and fuel safety
  3. No checks
  4. Only after complaints
Answer: b)
Heater use can create CO poisoning and fire risks — ventilation and clearances are essential.

310. Who must ensure fire exits are free of obstructions?

  1. Only visitors
  2. Mine management and site supervisors
  3. No one
  4. Only security
Answer: b)
Supervisors and management must ensure clear exit routes to facilitate quick evacuations.

311. What must be in place for working near overhead power lines?

  1. No measures
  2. Safe clearance, isolation or de-energisation and exclusion zones
  3. Only warning signs
  4. Only at daytime
Answer: b)
Maintaining safe distance and isolating power prevents electrocution during nearby works.

312. What should be done with obsolete permits and records?

  1. Keep indefinitely
  2. Archive as per retention schedule and dispose securely when period lapses
  3. Only delete immediately
  4. No action
Answer: b)
Records must be kept to meet legal requirements; then securely disposed when retention ends.

313. What is required for management of stray animals on site?

  1. No controls
  2. Fencing, reporting and safe removal procedures
  3. Only scare tactics
  4. Only during night
Answer: b)
Animals can cause hazards; controlled exclusion and removal reduce risk to people and operations.

314. Who must ensure that emergency equipment manuals are available?

  1. No one
  2. Mine management to keep manuals and maintenance logs
  3. Only equipment supplier
  4. Only operators
Answer: b)
Manuals guide correct use and maintenance; management must ensure availability for reference.

315. What must be provided for safe chemical mixing?

  1. Only a mixer
  2. Controlled procedures, PPE, ventilation and spill controls
  3. No controls
  4. Only training videos
Answer: b)
Mixing chemicals can be hazardous — controls minimize exposure and accidental reactions.

316. What is required when lifting near overhead services?

  1. No requirements
  2. Plan lifts, check clearances and use taglines or exclusion zones
  3. Only use spotters
  4. Only lift when services off
Answer: b)
Proper planning prevents contact with services and reduces risk of electrical incidents or damage.

317. Who must approve use of powered access platforms?

  1. Any worker
  2. Competent person and supervisor after inspection
  3. No approval
  4. Only equipment hire company
Answer: b)
Competent approval and checks ensure platforms are safe and correctly used for working at height.

318. What must be done when a chemical label is unreadable?

  1. Use the chemical anyway
  2. Quarantine container, identify contents and relabel before use
  3. Only move it
  4. Only mark as unknown
Answer: b)
Unlabelled chemicals are hazardous; identification and relabelling are essential before any use.

319. What must be done for workers returning to confined spaces after rescue?

  1. No checks
  2. Medical evaluation and counselling then re-assessment of procedures
  3. Only verbal reassurance
  4. Only change shift
Answer: b)
Post-incident care ensures worker recovery and identifies improvements to prevent recurrence.

320. What must be checked when resuming drilling after rain?

  1. Only equipment oil
  2. Ground stability, slurry drainage and equipment condition
  3. No checks
  4. Only inspector visit
Answer: b)
Rain can alter site conditions; checks prevent collapses and equipment damage when drilling resumes.

321. Who must ensure that safety-critical communication devices are charged?

  1. No one
  2. Management to schedule checks and chargers available
  3. Only operators
  4. Only contractors
Answer: b)
Reliable comms are vital for emergencies—management must ensure devices are charged and functional.

322. What is required for guarding of belt drives?

  1. No guarding
  2. Fixed guarding, emergency stop and inspection program
  3. Only signboards
  4. Only during commissioning
Answer: b)
Guarding prevents entanglement; emergency stops mitigate incident severity if entrapment occurs.

323. What must be done for safe isolation of pipelines for maintenance?

  1. No isolation
  2. Isolate, depressurize, blank and lock out with permits
  3. Only stop flow
  4. Only supervisor OK
Answer: b)
Full isolation prevents release of hazardous substances during maintenance and protects workers.

324. What must be included in induction for visitors?

  1. No induction
  2. Hazards, PPE, emergency procedures and escort arrangements
  3. Only ID check
  4. Only site map
Answer: b)
Visitors need basic awareness and controls to stay safe while on site.

325. Who must ensure recording of daily inspections?

  1. No one
  2. Supervisors and safety reps as part of management system
  3. Only contractors
  4. Only managers annually
Answer: b)
Regular inspection logs support proactive repairs and compliance tracking.

326. What must be ensured when using cranes near edges?

  1. No special measures
  2. Stability checks, outrigger placement and edge protection
  3. Only reduce load
  4. Only spotters
Answer: b)
Cranes near edges risk overturn—stability measures are essential to avoid catastrophic failures.

327. What is required for handling sharp or protruding objects?

  1. No control
  2. Guards, PPE and clear marking
  3. Only remove them
  4. Only tape over
Answer: b)
Controls prevent cuts and impalement — marking and guarding make hazards visible and less accessible.

328. Who must ensure availability of drinking water at remote sites?

  1. No one
  2. Mine management to provide potable water and test quality
  3. Only contractors
  4. Only local suppliers
Answer: b)
Safe drinking water is a basic welfare requirement; management must provide and monitor quality.

329. What must be done if a piece of plant is modified?

  1. Use immediately
  2. Reassess risk, test and update documentation before use
  3. No action
  4. Only notify supplier
Answer: b)
Modifications can change hazards; testing and updated docs ensure safe continued operation.

330. What must be provided for workers doing repetitive tasks?

  1. No measures
  2. Ergonomic assessments, rotation and breaks to reduce MSD risks
  3. Only faster pace
  4. Only overtime
Answer: b)
Ergonomic controls reduce musculoskeletal disorders—rotation and breaks spread load and reduce fatigue.

331. Who must ensure that emergency plans consider local terrain?

  1. No one
  2. Mine management to tailor plans to terrain and access constraints
  3. Only rescue teams
  4. Only local authorities
Answer: b)
Terrain affects evacuation and rescue; plans must reflect site-specific conditions for effectiveness.

332. What must be done for hazardous noise areas?

  1. No action
  2. Noise mapping, controls and hearing protection program
  3. Only put signs
  4. Only reduce hours
Answer: b)
A proactive program reduces hearing loss—engineering controls first, PPE where necessary.

333. Who must ensure that stored documents are retrievable in an emergency?

  1. No one
  2. Mine management to maintain accessible emergency info (contacts, plans)
  3. Only HR
  4. Only IT
Answer: b)
Quick access to plans and contacts speeds emergency response—management must ensure availability.

334. What must be verified before entering a sealed area?

  1. Only manager’s note
  2. Atmospheric testing, structural checks and competent clearance
  3. No verification
  4. Only after 24 hours
Answer: b)
Sealed areas can accumulate hazards; testing and competent approval are required before entry.

335. What must be done with flammable waste during storage?

  1. Keep it anywhere
  2. Store in approved containers, segregated and away from ignition sources
  3. Only cover it
  4. Only bury it
Answer: b)
Proper storage minimizes fire risk and supports safe handling and disposal.

336. Who must monitor compliance with PPE policy?

  1. No one
  2. Supervisors and safety officers under management
  3. Only workers
  4. Only contractors
Answer: b)
Active supervision ensures compliance and correct use of PPE across the site.

337. What must be ensured for emergency power systems?

  1. No checks
  2. Regular testing, fuel availability and maintenance
  3. Only installation
  4. Only visual check
Answer: b)
Emergency power must be reliable—testing and maintenance ensure systems work when needed.

338. What should be done when a worker is suspected of substance impairment?

  1. Ignore it
  2. Remove from duties, provide medical/HR evaluation and follow policy
  3. Only warn them
  4. Only send home
Answer: b)
Safety-critical roles require fitness for duty; policies protect the worker and others.

339. Who must ensure quality control of safety equipment purchases?

  1. No one
  2. Procurement with safety team validation
  3. Only finance
  4. Only vendors
Answer: b)
Purchasing decisions must involve safety checks to ensure equipment meets standards and is fit for purpose.

340. What must be done when environmental monitoring shows exceedances?

  1. Ignore results
  2. Investigate causes, implement controls and notify authorities if required
  3. Only re-test later
  4. Only inform workers
Answer: b)
Exceedances may harm people/environment—investigation and corrective action are mandatory and reportable.

341. What must be provided where manual handling is unavoidable?

  1. No support
  2. Training, mechanical aids and team lift procedures
  3. Only larger teams
  4. Only overtime
Answer: b)
Combining training and aids reduces strain injuries when manual handling cannot be eliminated.

342. Who must ensure that traffic intersections are controlled?

  1. No one
  2. Site traffic management with signs, mirrors and traffic controllers
  3. Only drivers
  4. Only security
Answer: b)
Intersections are high-risk—management must implement controls to prevent collisions.

343. What must be done before entering a high-voltage enclosure?

  1. Enter quickly
  2. Isolate, lockout, test absence of voltage and use appropriate PPE
  3. No checks
  4. Only supervisor present
Answer: b)
High-voltage entry requires strict isolation and testing to prevent fatal electric shock.

344. What must be ensured for storage of explosive detonators?

  1. Store with explosives
  2. Separate, secure storage and strict control per regulations
  3. No controls
  4. Only label them
Answer: b)
Detonators require separate secure storage to avoid accidental initiation of explosives.

345. What is required for ladders used as access to roofs or platforms?

  1. No requirements
  2. Fixed, secured ladders or fall protection where necessary
  3. Only portable ladders
  4. Only signs
Answer: b)
Secure access prevents falls and ensures safe work at heights on roofs or platforms.

346. Who must ensure that chemical spill kits are available where hazardous chemicals are used?

  1. No one
  2. Mine management to supply kits and train staff in use
  3. Only workers
  4. Only contractors
Answer: b)
Spill kits enable quick containment and cleanup, reducing exposure and environmental harm.

347. What must be included in a fatigue management policy?

  1. Only more pay
  2. Shift design, rest breaks, monitoring and reporting procedures
  3. No policy
  4. Only night shift limits
Answer: b)
A structured policy reduces fatigue-related errors and ensures workers are fit for duty.

348. What must be done when a safety suggestion is made by a worker?

  1. Ignore it
  2. Consider, investigate and respond to the worker with outcome
  3. Only file it
  4. Only discuss annually
Answer: b)
Engaging with suggestions improves safety culture and can lead to practical improvements.

349. Who must ensure that vehicle operators have valid licences?

  1. No one
  2. Mine management to verify and keep records
  3. Only drivers
  4. Only licensing authority
Answer: b)
Management must verify competence for safe vehicle operations and maintain proof of qualification.

350. What must be done when a water body is found adjacent to operations?

  1. Ignore it
  2. Assess contamination risk, install controls and prevent uncontrolled discharge
  3. Only post signs
  4. Only build fences
Answer: b)
Protecting water bodies prevents environmental harm and regulatory breaches; controls and monitoring are needed.

351. Who must arrange for isolation certificates for electrical works?

  1. Only electricians
  2. Responsible supervisor or authorized person under management governance
  3. No certificates
  4. Only supplier
Answer: b)
Formal isolation certificates confirm safe conditions for maintenance and protect personnel.

352. What must be done for work at night near cliff edges?

  1. No changes
  2. Extra lighting, barriers and supervisor oversight
  3. Only reflectors
  4. Only limit work
Answer: b)
Night work increases hazards—controls reduce risk of falls from edges with visibility and supervision.

353. What should be done with instruments used for safety monitoring?

  1. Never calibrate
  2. Calibrate periodically and keep calibration records
  3. Only replace when broken
  4. Only visual checks
Answer: b)
Accurate monitoring depends on calibrated instruments—records show reliability and traceability.

354. Who must ensure that contractors follow site induction rules?

  1. No one
  2. Project supervisor and contract manager under management
  3. Only contractor foreman
  4. Only security
Answer: b)
Supervisors ensure contractors comply with site rules through induction and monitoring.

355. What must be done when a worker reports fatigue during shift?

  1. Ignore report
  2. Relieve worker, provide rest and assess work scheduling
  3. Only give caffeine
  4. Only continue work
Answer: b)
Responding promptly reduces immediate risk and indicates whether scheduling changes are required.

356. What must be done when scaffolding is altered during use?

  1. No checks
  2. Stop work, re-inspect and re-certify before use
  3. Only continue carefully
  4. Only notify supervisor
Answer: b)
Alterations change load paths and stability—re-inspection ensures continued safety for users.

357. Who must ensure that signage for hazardous zones is maintained?

  1. No one
  2. Site supervisors under management to repair or replace damaged signs
  3. Only safety officer annually
  4. Only contractors
Answer: b)
Clear, legible signage is a simple but vital control; supervisors must keep them serviceable.

358. What must be done for storage of peroxides and other unstable chemicals?

  1. Store with general chemicals
  2. Follow specialist storage rules: cool, segregated, limited quantities and inspection
  3. No special rules
  4. Only label them
Answer: b)
Unstable chemicals need strict controls to prevent decomposition, fires or explosions.

359. Who must ensure availability of trained rescue divers if underwater work is performed?

  1. No one
  2. Mine management to arrange trained divers and equipment
  3. Only local coast guard
  4. Only contractors
Answer: b)
Underwater rescue is specialized — if such work exists, management must ensure rescue capability.

360. What is required when moving hazardous loads near people?

  1. No controls
  2. Establish exclusion zone, use taglines and communicate movement
  3. Only speed limits
  4. Only horns
Answer: b)
Exclusion zones and communication prevent people from being struck by moving loads.

361. What must be checked for pedestrian crossings on haul roads?

  1. No checks
  2. Visibility, signage, markings and physical separation where possible
  3. Only signs
  4. Only speed bumps
Answer: b)
Safe crossings reduce pedestrian-vehicle conflict; visibility and separation are key controls.

362. Who must ensure PPE compatibility with chemicals used?

  1. No one
  2. Safety team to specify PPE suited for chemical hazards
  3. Only workers
  4. Only procurement
Answer: b)
Selecting correct PPE requires chemical compatibility checks to ensure adequate protection.

363. What is required for planned maintenance shutdowns?

  1. No planning
  2. Detailed procedures, isolation plans, permits and communication
  3. Only notify staff
  4. Only extend shifts
Answer: b)
Shutdowns involve multiple hazards—planning prevents accidents and ensures coordinated safe work.

364. Who must ensure that rescue team training records are current?

  1. No one
  2. Mine management to maintain and audit rescue competency
  3. Only rescue team leader
  4. Only external agencies
Answer: b)
Rescue readiness requires up-to-date training records and frequent drills to keep skills sharp.

365. What must be done before using compressed air tools?

  1. No checks
  2. Inspect hoses, couplings and ensure PPE like eye protection
  3. Only check pressure
  4. Only training
Answer: b)
Air tool failures can cause projectile hazards; pre-use inspections and PPE reduce risk.

366. What must be done when a safety critical procedure is not followed?

  1. Ignore the breach
  2. Stop work, investigate cause and apply corrective action and training
  3. Only reprimand worker
  4. Only document it
Answer: b)
Addressing breaches prevents recurrence—root cause fixes and retraining are typical responses.

367. Who must ensure weather warnings are monitored for outdoor operations?

  1. No one
  2. Site supervisors to monitor forecasts and adjust work accordingly
  3. Only workers
  4. Only local authorities
Answer: b)
Weather can create immediate hazards; supervisors must act to protect operations and personnel.

368. What must be done to electrical cables laid temporarily across walkways?

  1. Leave them loose
  2. Protect with ramps, cable covers or reroute away from walkways
  3. No action
  4. Only tape them
Answer: b)
Covering or rerouting prevents trips and cable damage which could create electrical hazards.

369. What must be done before restarting production after a major repair?

  1. Restart immediately
  2. Functional testing, safety checks and supervisor sign-off
  3. No testing
  4. Only operator opinion
Answer: b)
Testing and sign-off prove that repairs restored safe operation before production resumes.

370. Who must ensure emergency shower and eyewash stations are functional?

  1. No one
  2. Maintenance and safety teams to test and maintain
  3. Only suppliers
  4. Only workers
Answer: b)
Immediate decontamination facilities must be reliable; scheduled testing ensures functionality.

371. What must be done when signage indicates asbestos presence?

  1. Ignore signs
  2. Follow asbestos management plan, restrict access and use licensed removal if needed
  3. Only cover area
  4. Only notify workers
Answer: b)
Asbestos requires specialist handling; management plans and licensed removal protect health.

372. Who must ensure that emergency contact lists are up to date?

  1. No one
  2. Site admin and supervisors to review regularly
  3. Only HR
  4. Only local authorities
Answer: b)
Accurate contacts speed coordination of emergency response and family notifications.

373. What must be done for storage of rotatable plant parts?

  1. Leave unsecured
  2. Secure, tag and store on stable racks to prevent rolling or collapse
  3. Only label them
  4. Only stack them
Answer: b)
Securing heavy parts prevents accidental movement and crushing hazards during storage.

374. What must be done for isolation of hydraulically stored energy?

  1. No isolation
  2. Drain pressure, lock valves and use mechanical blocks before maintenance
  3. Only switch off
  4. Only cap lines
Answer: b)
Hydraulic energy can release unexpectedly—full isolation and blocking prevent stored-energy incidents.

375. Who must ensure that PPE dispensing points are stocked?

  1. No one
  2. Logistics/warehouse under safety oversight to maintain stock levels
  3. Only workers
  4. Only contractors
Answer: b)
Availability of PPE ensures workers can replace damaged items and maintain protections.

376. What must be done when a vehicle breaches its load limit?

  1. Continue operation
  2. Stop load, unload to safe limits and investigate cause
  3. Only reduce speed
  4. Only record it
Answer: b)
Overloading risks failure—immediate correction and investigation prevent recurrence and damage.

377. What must be done when a worker suffers heat stress?

  1. Ignore signs
  2. Move to cool area, hydrate, provide medical check and review controls
  3. Only let them rest
  4. Only send home
Answer: b)
Prompt treatment prevents severe heat illness and identifying controls reduces future risk.

378. Who must ensure that safety-critical alarms have backup power?

  1. No one
  2. Maintenance and safety teams to provide battery backup or generator support
  3. Only IT
  4. Only suppliers
Answer: b)
Backup power ensures alarm function during outages to maintain warning capability.

379. What must be done with malfunctioning safety interlocks?

  1. Bypass and continue
  2. Lockout, tag, repair by competent person and test before return
  3. Only note it
  4. Only restart machine
Answer: b)
Interlocks are critical — bypassing increases risk; proper repair and testing restore safe operation.

380. Who must ensure that rescue equipment is stored where it can be reached quickly?

  1. No one
  2. Site management to position and signpost rescue gear
  3. Only rescue team
  4. Only contractors
Answer: b)
Accessible rescue gear reduces response time and improves rescue outcomes during incidents.

381. What must be done when lifting near overhead power lines with conductive loads?

  1. No actions
  2. De-energise lines or use insulated spreaders and maintain safe clearance
  3. Only reduce load
  4. Only use spotters
Answer: b)
Conductive loads near live lines risk electrocution—de-energising or insulation removes that hazard.

382. What is required when a worker reports skin irritation after chemical handling?

  1. Ignore
  2. Provide first aid, medical review and investigate PPE/controls
  3. Only give ointment
  4. Only send home
Answer: b)
Medical attention and investigation identify cause and strengthen protective measures to prevent recurrence.

383. Who must ensure that lifting accessories have traceability tags?

  1. No one
  2. Maintenance/procurement to tag and record certification
  3. Only operators
  4. Only suppliers
Answer: b)
Traceability helps track inspections and load history, ensuring safe lifting operations.

384. What must be done when a worker is injured by falling material?

  1. Ignore
  2. Provide first aid, secure area, investigate and implement controls
  3. Only document
  4. Only continue work
Answer: b)
Immediate care and investigation prevent further incidents and correct unsafe stacking or guarding.

385. What must be ensured when using temporary lighting underground?

  1. No checks
  2. Explosion-proof fittings where required, secure cables and tested batteries
  3. Only more lights
  4. Only supervisor presence
Answer: b)
Underground lighting must not create ignition sources and cables must not create trip hazards.

386. Who must ensure that emergency assembly points are known to all staff?

  1. No one
  2. Management via induction, signage and drills
  3. Only supervisors
  4. Only safety officer
Answer: b)
Clear knowledge of assembly points reduces confusion and speeds accountability during evacuations.

387. What must be done when a vehicle is involved in a collision on site?

  1. Ignore it
  2. Secure scene, render aid, investigate cause and repair or remove vehicle
  3. Only swap drivers
  4. Only call manager
Answer: b)
Collision response protects injured people and identifies root causes to prevent repetition.

388. What must be done for excavation faces left overnight?

  1. Leave them exposed
  2. Stabilise, bench or provide barriers and signage to prevent collapse or falls
  3. No action
  4. Only cover with tarp
Answer: b)
Temporary stabilisation and exclusion reduce risk from falling material or people accidentally approaching edges.

389. Who must ensure that storage tanks have overflow protection?

  1. No one
  2. Engineering and maintenance teams under management
  3. Only suppliers
  4. Only contractors
Answer: b)
Overflow protection prevents spills and potential environmental contamination; design and checks are needed.

390. What must be done when a worker shows signs of hypothermia?

  1. Ignore it
  2. Move to warm area, seek medical help and warm gradually
  3. Only give hot drink
  4. Only continue work
Answer: b)
Hypothermia is serious—prompt warming and medical assessment prevent severe outcomes.

391. Who must ensure that haul road cambers and drainage are maintained?

  1. No one
  2. Maintenance teams under site supervision
  3. Only drivers
  4. Only contractors
Answer: b)
Good road condition reduces vehicle hazards and rutting that may cause rollovers.

392. What must be done when a new chemical supplier is used?

  1. No checks
  2. Obtain SDS, confirm quality and update storage/handling procedures
  3. Only accept shipment
  4. Only notify procurement
Answer: b)
New suppliers may have different formulations—SDS and controls must be reviewed before use.

393. Who must ensure adequate rest facilities for night shift workers?

  1. No one
  2. Welfare and management to provide rest rooms and hydration
  3. Only supervisors
  4. Only HR
Answer: b)
Proper rest facilities help night workers manage fatigue and maintain alertness during shifts.

394. What must be done to control ignition sources near solvent storage?

  1. No control
  2. Ban smoking, control hot works and ensure electrical equipment rating
  3. Only signs
  4. Only keep doors closed
Answer: b)
Solvents are flammable—ignition control is vital to prevent fires and explosions.

395. What is required for management of stress-related health issues?

  1. No action
  2. Support programs, medical referral and workload review
  3. Only counseling once
  4. Only disciplinary action
Answer: b)
Holistic support reduces long-term absence and maintains productivity and wellbeing.

396. Who must ensure that emergency response kits are checked after use?

  1. No one
  2. Site admin or safety team to restock and record checks
  3. Only rescue team
  4. Only external agency
Answer: b)
Kits must be ready for next incident — restocking and records preserve response capability.

397. What must be done when a moving conveyor jam is detected?

  1. Clear jam while running
  2. Isolate power, lockout and remove blockage safely
  3. Only reduce speed
  4. Only call supervisor
Answer: b)
Removing blockages under power risks entrapment—lockout is mandatory for safe clearance.

398. Who must ensure that emergency procedures are understandable by all workers?

  1. No one
  2. Management to provide translations, pictograms and training where necessary
  3. Only trainers
  4. Only supervisors
Answer: b)
Comprehension of emergency actions across the workforce is essential to effective response.

399. What must be done when mechanical guarding prevents normal inspection?

  1. Leave guards off
  2. Use safe access procedures or removable guards with isolation and supervision for inspection
  3. Only visual from distance
  4. Only monthly checks
Answer: b)
Inspection of guarded areas must be done safely using isolation and controlled access — not by removing safeguards permanently.

400. What is the final action after implementing safety improvements from an incident?

  1. Do nothing further
  2. Verify effectiveness, update procedures and share lessons across site
  3. Only file the report
  4. Only inform injured worker
Answer: b)
Closing the loop with verification and knowledge sharing prevents recurrence and improves overall safety.

401. Who must authorize work that penetrates fire-rated structures?

  1. Any worker
  2. Authorized manager after fire risk assessment
  3. Only contractor
  4. No authorization
Answer: b)
Penetrations can undermine fire containment—formal approval and fire mitigation are required.

402. What must be done before allowing access to a demolition area?

  1. Allow access freely
  2. Demolition plan, exclusion zones and trained crew
  3. Only supervisor present
  4. No controls
Answer: b)
Demolition carries collapse risk—planned methods and clear exclusion protect people and property.

403. Who must ensure that hazardous area classifications are documented?

  1. No one
  2. Engineering/safety team under management
  3. Only electricians
  4. Only contractors
Answer: b)
Classification identifies flammable/explosive zones and guides equipment selection and work controls.

404. What must be done when a portable generator is used?

  1. No checks
  2. Ensure ventilation, bonding/earthing and safe fuel storage
  3. Only place outdoors
  4. Only use at night
Answer: b)
Generators produce fumes and can backfeed power—ventilation and safe electrical/fuel practices are essential.

405. Who must approve the use of non-standard tools on-site?

  1. Any worker
  2. Supervisor or safety team after risk review
  3. Only procurement
  4. No approval
Answer: b)
Non-standard tools may introduce hazards—supervised approval ensures suitability and controls.

406. What must be done with rescue breathing apparatus after use?

  1. Store without checks
  2. Clean, service, test and record before returning to service
  3. Only dry it
  4. Only replace filters
Answer: b)
Respiratory gear must be hygienic and functional for future emergencies—servicing and records ensure reliability.

407. What must be done when chemical mixing instructions conflict with SDS?

  1. Follow local instructions
  2. Follow SDS and consult supplier; do not proceed until resolved
  3. Ignore SDS
  4. Proceed cautiously
Answer: b)
SDS is authoritative for safety—conflicts must be clarified with supplier to avoid hazardous reactions.

408. Who must ensure that fire doors are kept closed?

  1. No one
  2. Site management and supervisors through signage and checks
  3. Only security
  4. Only visitors
Answer: b)
Fire doors must operate as designed—keeping them closed limits fire spread; management enforces rules.

409. What must be done before workers enter an area recently sprayed with pesticides?

  1. Enter immediately
  2. Wait for ventilation and clearance per SDS, and use PPE
  3. No special measure
  4. Only wear mask
Answer: b)
Chemical application requires adherence to SDS for re-entry times and protective measures to avoid exposure.

410. Who must ensure that lifting plans are documented for complex lifts?

  1. Only crane operator
  2. Lift planner and supervisor with management oversight
  3. Only supplier
  4. No documentation
Answer: b)
Complex lifts need planning for load, path, resources and emergency response—formal documentation ensures safety.

411. What must be done when a new piece of safety legislation is published?

  1. Ignore it
  2. Review implications, update procedures and train staff as needed
  3. Only file document
  4. Only inform managers
Answer: b)
Compliance requires translating new laws into site practice—review and staff updates are necessary.

412. What is required for safe use of adhesive chemicals?

  1. No precautions
  2. Ventilation, gloves, eye protection and follow manufacturer’s guidance
  3. Only gloves
  4. Only work outdoors
Answer: b)
Adhesives may release fumes or be skin irritants—controls and PPE reduce health risks.

413. Who must ensure that temporary barriers are stable and visible?

  1. No one
  2. Site supervisors to check and maintain barriers
  3. Only contractors
  4. Only workers
Answer: b)
Barriers prevent access; supervisors must ensure they function as intended and remain visible.

414. What must be done for machinery with rotating parts during cleaning?

  1. Clean while running
  2. Isolate power, lockout and follow safe cleaning procedure
  3. Only slow it down
  4. Only use PPE
Answer: b)
Cleaning near moving parts requires isolation to prevent entrapment and injuries.

415. Who must ensure that contractors have appropriate insurance?

  1. No one
  2. Contract manager and procurement to verify before work
  3. Only contractors
  4. Only finance
Answer: b)
Insurance verifies contractors can meet liabilities—site must check cover before engagement.

416. What must be done when a storage area smells of gas?

  1. Ignore smell
  2. Evacuate, ventilate, test and investigate source immediately
  3. Only open windows
  4. Only notify manager next day
Answer: b)
Gas odors indicate potential flammable/toxic leaks—immediate evacuation and testing protect people.

417. What is required for training records retention?

  1. No retention
  2. Keep for defined period per policy and regulatory needs
  3. Only keep for one month
  4. Only digital copies
Answer: b)
Retention periods support audits and evidence of competence; follow policy and law for duration.

418. What must be done to control dust during dry material transfer?

  1. No control
  2. Enclose transfer points, use extraction and wet suppression
  3. Only masks
  4. Only reduce speed
Answer: b)
Engineering controls at source are most effective for dust; PPE is secondary where exposure remains.

419. Who must ensure vehicle pre-op checks are completed?

  1. No one
  2. Operator and supervisor to verify completion
  3. Only mechanics
  4. Only fleet manager
Answer: b)
Operators perform checks, supervisors ensure compliance to prevent breakdowns or unsafe conditions.

420. What must be done when storage temperature limits are exceeded for chemicals?

  1. Continue normal use
  2. Quarantine, assess stability and consult SDS/supplier before reuse
  3. Only move them
  4. Only label them
Answer: b)
Temperature can degrade chemicals—assessment prevents unsafe use or disposal issues.

421. Who must ensure that permits to work are closed at end of shift?

  1. No one
  2. Permit holder and supervisor to close and handover if continuing
  3. Only safety officer
  4. Only manager
Answer: b)
Proper closure confirms work is complete and hazards cleared, or that a safe handover exists.

422. What must be done when a worker is allergic to certain PPE materials?

  1. Ignore it
  2. Provide alternative compatible PPE and record the restriction
  3. Only give exemption
  4. Only send home
Answer: b)
PPE must protect without harming the wearer—alternatives maintain safety and comfort.

423. What must be done to ensure access routes remain passable during inclement weather?

  1. No action
  2. Inspect, clear drains, add surfacing and restrict access if unsafe
  3. Only reduce traffic
  4. Only warn drivers
Answer: b)
Keeping routes usable prevents entrapment and accidents; prepare and restrict when necessary.

424. Who must ensure that signage warns of falling objects in overhead work?

  1. No one
  2. Supervisor and site management to signpost and cordon off areas
  3. Only contractors
  4. Only workers
Answer: b)
Warnings and exclusion protect people below overhead work—supervisors must enforce them.

425. What must be done to control hazardous vibrations from tools?

  1. No control
  2. Use low-vibration tools, limit exposure time and provide breaks
  3. Only gloves
  4. Only reduce speed
Answer: b)
Reducing exposure and using appropriate tools lowers risk of hand-arm vibration syndrome.

426. Who must verify that spill response teams are trained?

  1. No one
  2. Safety manager to maintain training records and schedule refreshers
  3. Only external contractors
  4. Only supervisors
Answer: b)
Trained responders limit environmental impact—management ensures training and refreshers.

427. What must be done when a worker’s medical condition may affect safety-critical duties?

  1. Ignore medical condition
  2. Conduct fitness-for-duty assessment and adapt duties accordingly
  3. Only monitor informally
  4. Only give leave
Answer: b)
Ensuring fitness prevents incidents—adjustments or restrictions keep the worker and others safe.

428. What must be done when battery storage areas show signs of overheating?

  1. Ignore signs
  2. Evacuate, isolate batteries, cool area and investigate cause
  3. Only move batteries
  4. Only increase ventilation
Answer: b)
Overheating can lead to thermal runaway—immediate action prevents fires and larger incidents.

429. Who must ensure that emergency response drills include contractors?

  1. No one
  2. Site management to include contractors in drills and briefings
  3. Only contractors
  4. Only rescue teams
Answer: b)
Contractors must know site emergency procedures—drill inclusion ensures coordinated responses.

430. What must be done when a worker finds deteriorated handrails?

  1. Keep using them
  2. Report, barricade area and repair or replace promptly
  3. Only signpost
  4. Only warn workers
Answer: b)
Failing guards create fall risk—remove access and repair to restore safe conditions.

431. What must be done before entering an area where animals are kept?

  1. Enter without checks
  2. Follow animal handling procedures, PPE and supervision if required
  3. No action
  4. Only training video
Answer: b)
Animals present unique risks—procedures and PPE reduce bites, zoonoses and other hazards.

432. Who must ensure that ladders are the correct class for industrial use?

  1. No one
  2. Procurement and supervisors to provide and verify industrial-rated ladders
  3. Only workers
  4. Only supplier
Answer: b)
Industrial ladders meet load and safety standards—site must supply appropriate equipment and check condition.

433. What must be done when a fall arrest system shows wear?

  1. Continue using it
  2. Withdraw from service, tag, replace and record action
  3. Only repair on-site
  4. Only use with caution
Answer: b)
Fall protection must be reliable—any wear mandates removal and replacement to prevent catastrophic failures.

434. What must be ensured for confined space attendants?

  1. No special training
  2. Trained, equipped and able to communicate and summon rescue
  3. Only one attendant per site
  4. Only verbal instructions
Answer: b)
Attendants must monitor entrants and initiate rescue—training and equipment are essential for safety.

435. Who must ensure that emergency route maps are displayed?

  1. No one
  2. Site safety to post maps and ensure visibility
  3. Only managers
  4. Only supervisors
Answer: b)
Maps assist evacuation—safety must ensure they are current, visible and match signage on site.

436. What must be done to welding areas to prevent fire?

  1. No controls
  2. Use fire-resistant screens, remove combustible material and have fire watch
  3. Only use indoors
  4. Only provide extinguisher
Answer: b)
Welding generates sparks—screens and a fire watch prevent ignition of nearby combustibles.

437. What must be done when a safety-critical procedure is found missing at a workstation?

  1. Continue working
  2. Stop work, draft procedure, train staff and implement controls
  3. Only notify manager
  4. Only write brief note
Answer: b)
Procedures guide safe work—if missing, develop and train before resuming hazardous tasks.

438. Who must ensure that emergency medical supplies are stocked?

  1. No one
  2. Site admin and safety to check and replenish kits regularly
  3. Only first-aiders
  4. Only volunteers
Answer: b)
Stocked kits ensure timely care—responsibility lies with admin/safety to maintain readiness.

439. What must be done when a new work method reduces headcount but adds task complexity?

  1. No review
  2. Assess new risks, update procedures and train remaining staff
  3. Only reduce costs
  4. Only brief managers
Answer: b)
Changing methods changes risk profiles—assess and manage before implementation to keep safe.

440. Who must ensure that storage racking is inspected for overload signs?

  1. No one
  2. Warehouse/supervisors to inspect and maintain load limits
  3. Only procurement
  4. Only suppliers
Answer: b)
Racking failure risks collapse—regular inspections ensure safe storage and adherence to load limits.

441. What must be done when a PPE stock shows expiry dates?

  1. Keep using expired items
  2. Withdraw expired PPE, replace and update inventories
  3. Only note expiry
  4. Only return to supplier
Answer: b)
Expired PPE may fail—remove from service and provide replacements to maintain protection.

442. Who must ensure that gas detection equipment is calibrated?

  1. No one
  2. Maintenance/safety to schedule calibrations and keep records
  3. Only field workers
  4. Only supplier
Answer: b)
Calibration ensures sensors read accurately—records demonstrate reliability for safety decisions.

443. What must be done when a storm damages site fencing?

  1. Leave it damaged
  2. Secure area, repair fencing and assess security breach risks
  3. Only notify manager
  4. Only call contractor
Answer: b)
Damaged fencing can allow unauthorized entry—secure and repair promptly to maintain safety and security.

444. What is required for use of portable chemical heaters?

  1. No controls
  2. Follow manufacturer guidance, ensure ventilation and safe fuel handling
  3. Only keep outdoors
  4. Only use in emergencies
Answer: b)
Heaters can emit hazardous gases and cause fires—use only with correct ventilation and controls.

445. Who must ensure that emergency exits are illuminated?

  1. No one
  2. Maintenance and safety to test lighting and battery backups
  3. Only electricians
  4. Only security
Answer: b)
Illuminated exits aid evacuation during power loss—testing ensures they function when needed.

446. What must be done when a vehicle’s braking performance is reduced?

  1. Continue use
  2. Withdraw vehicle, inspect brakes and repair before return to service
  3. Only reduce load
  4. Only slow down
Answer: b)
Brakes are critical—immediate withdrawal and repair prevent collisions and injuries.

447. Who must ensure that first-aid responders have refreshed certifications?

  1. No one
  2. Safety manager to schedule refreshers and keep records
  3. Only trainers
  4. Only volunteers
Answer: b)
Current skills are essential for effective response—management ensures training currency and coverage.

448. What must be done when weld fumes exceed exposure limits?

  1. Ignore it
  2. Improve local extraction, use respirators and limit exposure time
  3. Only open door
  4. Only change electrodes
Answer: b)
Engineering controls reduce exposure; PPE and administrative limits protect workers when extraction is insufficient.

449. Who must ensure that instrument batteries are replaced per schedule?

  1. No one
  2. Maintenance to follow schedule and record changes
  3. Only users
  4. Only contractors
Answer: b)
Reliable instruments need maintained power—scheduled changes and records prevent failures during use.

450. What must be done when a worker reports unusual smells after maintenance?

  1. Ignore report
  2. Investigate source, ventilate and remove hazards before resuming work
  3. Only mask the smell
  4. Only notify manager
Answer: b)
Odors can indicate leaks or chemical hazards—investigate and control before exposing others.

451. Who must ensure that high-visibility clothing is provided where required?

  1. No one
  2. Management to supply and enforce use in traffic or low-visibility areas
  3. Only procurement
  4. Only workers
Answer: b)
Visibility reduces collision risk—site must provide appropriate clothing and enforce use in zones that require it.

452. What must be done when scaffolding tags show ‘Do Not Use’?

  1. Use scaffolding carefully
  2. Do not use; secure area and rectify issues before re-tagging safe
  3. Only inform supervisor
  4. Only limit access
Answer: b)
Red tags indicate unsafe condition—remove access until repaired and re-inspected to ensure safety.

453. Who must ensure that hazardous area lighting is explosion-proof?

  1. No one
  2. Engineering/safety to specify and procure appropriate rated equipment
  3. Only electricians
  4. Only procurement
Answer: b)
In classified zones, only certified explosion-proof fixtures are safe—engineering specifies and verifies suitability.

454. What must be included in a site evacuation checklist?

  1. Only managers’ names
  2. Exit routes, assembly points, communications, headcount procedures and special needs
  3. Only exit maps
  4. Only fire extinguisher locations
Answer: b)
A comprehensive checklist ensures everyone is accounted for and that evacuation proceeds smoothly under varied scenarios.

455. What must be done when signage is vandalised or removed?

  1. Ignore it
  2. Replace immediately and investigate cause to prevent recurrence
  3. Only report annually
  4. Only post temporary warning
Answer: b)
Missing signage increases risk—prompt replacement and investigation restore safety and deter vandalism.

456. Who must ensure that confined space entry equipment is regularly inspected?

  1. No one
  2. Rescue/safety team to inspect, test and log equipment condition
  3. Only contractor
  4. Only supplier
Answer: b)
Rescue equipment must be reliable—scheduled inspections with records ensure readiness for emergencies.

457. What must be done when a hazardous label is splashed or illegible?

  1. Use container
  2. Quarantine, identify, relabel and do not use until safe
  3. Only place new label over old
  4. Only notify supervisor
Answer: b)
Readable labels are critical for safe handling—restore correct labeling before reuse to prevent misidentification.

458. Who must ensure rescue ropes and harnesses are certified?

  1. No one
  2. Safety/maintenance to purchase certified gear and keep certificates
  3. Only rescue team
  4. Only external agency
Answer: b)
Certified rescue equipment meets standards—management must ensure procurement and documentation for safety.

459. What must be done when a noise monitoring shows rising trends?

  1. Ignore trend
  2. Investigate sources, implement controls and update hearing conservation measures
  3. Only increase PPE use
  4. Only run monitoring again
Answer: b)
Rising noise indicates growing exposure—engineering solutions and program updates protect hearing long-term.

460. Who must ensure that site radios operate on correct channels?

  1. No one
  2. Communications/safety to configure channels and train users
  3. Only IT
  4. Only users
Answer: b)
Reliable comms require correct channel setup and user competence—management coordinates and trains accordingly.

461. What must be done when a worker discovers a live electrical conductor exposed?

  1. Touch to test
  2. Isolate supply, cordon area and notify electrical team immediately
  3. Only mark location
  4. Only report at shift end
Answer: b)
Exposed live conductors are dangerous—immediate isolation and expert response prevent electrocution risks.

462. Who must ensure that emergency vehicles can access site in all seasons?

  1. No one
  2. Site planners/maintenance to maintain access and keep routes clear
  3. Only security
  4. Only local authorities
Answer: b)
Emergency access must be reliable—planning and upkeep ensure responders can reach incidents promptly.

463. What must be done to prevent unauthorized use of plant keys?

  1. No control
  2. Control key custody, log issuance and limit to authorised operators
  3. Only label keys
  4. Only keep in office
Answer: b)
Key control prevents unauthorised operation—logging and custodial rules maintain accountability and safety.

464. What must be done when an environmental sensor shows a spike?

  1. Ignore spike
  2. Investigate source, validate reading and implement controls if real
  3. Only log data
  4. Only re-calibrate later
Answer: b)
Spikes may be real hazards—prompt validation and action protect people and the environment.

465. Who must ensure that suspended loads are not carried over people?

  1. No one
  2. Lift supervisor to plan lifts avoiding pedestrian routes
  3. Only crane operator
  4. Only traffic team
Answer: b)
Avoiding suspended loads over people is basic lift safety—supervisors must plan routes to prevent exposure.

466. What must be done when items are stored near ignition sources?

  1. Leave them
  2. Relocate combustibles away from ignition and control hot works
  3. Only mark area
  4. Only inform fire team
Answer: b)
Separation reduces fire risk—relocate combustibles and enforce hot work controls to prevent ignition.

467. Who must ensure that traffic marshal posts are staffed during high movement periods?

  1. No one
  2. Traffic manager and supervisors to assign marshals and monitor
  3. Only security
  4. Only drivers
Answer: b)
Controlled traffic reduces collisions—management must schedule marshals where vehicle activity is high.

468. What must be done when PPE is found to be counterfeit?

  1. Keep using
  2. Withdraw immediately, notify procurement and replace with certified items
  3. Only test a sample
  4. Only report supplier
Answer: b)
Counterfeit PPE may not protect—remove and replace with certified products and address procurement gaps.

469. Who must ensure that battery charging areas are segregated?

  1. No one
  2. Maintenance/safety to designate and control charging areas with ventilation and fire controls
  3. Only electricians
  4. Only users
Answer: b)
Charging can produce gases and heat—segregated, ventilated areas with fire controls reduce risks.

470. What must be done when a tool is dropped from height?

  1. Keep using it
  2. Withdraw tool, inspect for damage and tag until safe
  3. Only repair superficially
  4. Only note in log
Answer: b)
Dropped tools may be damaged and unsafe—inspect and confirm integrity before returning to use.

471. Who must ensure that signage warns of chemical hazards at storage?

  1. No one
  2. Storage manager to post labels and hazard signs per regulations
  3. Only procurement
  4. Only workers
Answer: b)
Clear signage communicates hazards to all—storage managers implement and maintain compliant labelling.

472. What must be done when procedures require two-person working but only one is present?

  1. Proceed anyway
  2. Stop work and arrange required personnel or alternative controls
  3. Only continue carefully
  4. Only notify supervisor
Answer: b)
Two-person rules exist to manage risk—do not proceed without required staffing or equivalent controls.

473. Who must ensure that lifting accessories are periodically load-tested?

  1. No one
  2. Maintenance to schedule load tests and keep certification
  3. Only operators
  4. Only suppliers
Answer: b)
Load testing verifies capacity—scheduled tests and records ensure lifting gear remains safe for use.

474. What must be done when a worker reports vibration-related numbness?

  1. Ignore
  2. Medical assessment, review tools and reduce exposure
  3. Only change tool
  4. Only provide gloves
Answer: b)
Symptoms indicate possible vibration injury—medical review and exposure reduction prevent progression.

475. Who must ensure signage for chemical incompatibilities is available?

  1. No one
  2. Storage manager and safety to post incompatibility notices
  3. Only procurement
  4. Only suppliers
Answer: b)
Preventing incompatible storage reduces risk of dangerous reactions—informative signage supports safe segregation.

476. What must be done when a worker experiences a near-miss with a vehicle?

  1. Ignore it
  2. Report, investigate root cause and implement controls
  3. Only warn driver
  4. Only adjust speed limits
Answer: b)
Near-miss analysis prevents future incidents—actionable controls should follow investigations.

477. Who must ensure that storage racks are anchored where required?

  1. No one
  2. Warehouse and maintenance to secure racks to prevent tipping
  3. Only procurement
  4. Only suppliers
Answer: b)
Anchoring prevents tipping under load or seismic events—installation and checks ensure stability.

478. What must be done when a worker reports dizziness after using solvents?

  1. Ignore report
  2. Remove from exposure, seek medical help and review controls/PPE
  3. Only give water
  4. Only send home
Answer: b)
Solvent exposure can cause acute effects—medical review and control assessment reduce recurrence and harm.

479. Who must ensure that first aid stations are signposted?

  1. No one
  2. Site safety to make locations visible and accessible
  3. Only volunteers
  4. Only managers
Answer: b)
Quick identification of first aid stations speeds response—signage is a simple but essential control.

480. What must be done when temporary fencing is installed near a public area?

  1. No action
  2. Ensure visibility, stability and public exclusion with clear signage
  3. Only place fencing
  4. Only inform local police
Answer: b)
Protecting the public requires secure, visible barriers and information to prevent unauthorised access and accidents.

481. Who must ensure that rescue stretchers are available and serviceable?

  1. No one
  2. First aid/rescue team to maintain equipment readiness and checks
  3. Only suppliers
  4. Only volunteers
Answer: b)
Rescue equipment must be ready—regular checks ensure stretchers and associated items function when needed.

482. What must be done when a worker reports tremors after exposure to solvents?

  1. Ignore
  2. Arrange medical assessment, cease exposure and investigate controls
  3. Only give rest
  4. Only record incident
Answer: b)
Neurological signs require prompt medical attention and removal from exposure to prevent further harm.

483. Who must ensure that toolbox talks are documented?

  1. No one
  2. Supervisors to record topics, attendance and actions
  3. Only safety officers
  4. Only managers
Answer: b)
Documentation shows topics covered and who attended—useful for follow-up and compliance evidence.

484. What must be done when a chemical spill reaches drainage?

  1. Ignore it
  2. Contain source, notify environment team and follow spill plan including downstream notifications
  3. Only mop visible area
  4. Only call supervisor
Answer: b)
Environmental contamination is serious—containment and formal reporting mitigate damage and meet legal obligations.

485. Who must ensure that plant isolations are visible and secure?

  1. No one
  2. Maintenance and operations to apply locks/tags and verify isolation
  3. Only operators
  4. Only supervisors
Answer: b)
Clear isolation reduces accidental re-energisation—locks/tags and verification ensure worker safety.

486. What must be done when a worker reports shortness of breath during work?

  1. Ignore it
  2. Remove from area, seek medical attention and investigate exposure sources
  3. Only give water
  4. Only record incident
Answer: b)
Respiratory symptoms can indicate serious exposure—act promptly to protect the individual and others.

487. Who must ensure that flammable storage cabinets are grounded?

  1. No one
  2. Maintenance/engineering to ground cabinets and verify bonding to prevent static ignition
  3. Only procurement
  4. Only users
Answer: b)
Grounding reduces static build-up and ignition risk—engineering ensures proper installation and checks.

488. What must be done when a worker reports vision changes after chemical exposure?

  1. Ignore
  2. Immediate medical assessment, decontamination and investigation
  3. Only flush eyes
  4. Only send home
Answer: b)
Vision changes can signal serious eye injury—urgent medical care and control review are required.

489. Who must ensure that emergency drills test communication under realistic conditions?

  1. No one
  2. Emergency planner to design realistic scenarios including comms testing
  3. Only managers
  4. Only rescue teams
Answer: b)
Realistic drills reveal communication gaps—planners must include comms tests to validate response capability.

490. What must be done when an instrument reading is implausible?

  1. Ignore it
  2. Cross-check, recalibrate if needed and investigate possible causes
  3. Only log it
  4. Only replace instrument
Answer: b)
Instrument anomalies need verification—confirm accuracy before relying on readings for safety actions.

491. Who must ensure vehicles have functioning reverse alarms where required?

  1. No one
  2. Fleet maintenance to test alarms and replace faulty units
  3. Only drivers
  4. Only procurement
Answer: b)
Alarms warn pedestrians—maintenance ensures alerts function to reduce vehicle-pedestrian collisions.

492. What must be done when a worker reports persistent cough after dust exposure?

  1. Ignore
  2. Medical check, review controls and monitor others for symptoms
  3. Only give mask
  4. Only issue rest
Answer: b)
Respiratory symptoms may indicate occupational disease—medical evaluation and control improvements are necessary.

493. Who must ensure that access to high-pressure systems is controlled?

  1. No one
  2. Engineering and maintenance to apply controls, labels and training
  3. Only operators
  4. Only suppliers
Answer: b)
High-pressure systems can cause severe injury—controls, labelling and competent operation reduce risk.

494. What must be done when pesticides are stored near food areas?

  1. No separation
  2. Relocate pesticides away from food, follow segregation and contamination controls
  3. Only label them
  4. Only lock the room
Answer: b)
Preventing cross-contamination between pesticides and food is essential for health; segregation and controls are required.

495. Who must ensure that emergency assembly points are large enough for site population?

  1. No one
  2. Emergency planner and site management to assess capacity and adjust as needed
  3. Only security
  4. Only supervisors
Answer: b)
Assembly points must accommodate everyone—planning ensures space and safe distancing during evacuations.

496. What must be done when lighting failures occur in a work area?

  1. Continue working
  2. Stop hazardous work, provide temporary lighting and repair fault before resuming
  3. Only use torches
  4. Only reduce tasks
Answer: b)
Insufficient light increases risk—suspend hazardous tasks until safe lighting is restored and faults corrected.

497. Who must ensure that PPE sizing accounts for local workforce diversity?

  1. No one
  2. Procurement and safety to stock varied sizes and check fit
  3. Only workers
  4. Only supervisors
Answer: b)
Correct fit is essential for PPE effectiveness—stocking multiple sizes ensures everyone is protected.

498. What must be done when a safety issue is raised anonymously?

  1. Ignore it
  2. Investigate objectively and implement corrective actions where required
  3. Only ask for identity
  4. Only record it
Answer: b)
Anonymous reports may reveal real hazards—investigate and act based on risk, not source.

499. Who must ensure that plant start-up checklists are completed?

  1. No one
  2. Operator and supervisor to complete and sign off checks before startup
  3. Only maintenance
  4. Only manager
Answer: b)
Pre-start checks prevent immediate failures—authority and sign-off ensure accountability and safety.

500. What is the final step after a scheduled safety improvement project completes?

  1. Assume success
  2. Verify effectiveness, document changes and communicate lessons to all relevant staff
  3. Only file completion report
  4. Only inform managers
Answer: b)
Verification ensures the improvement achieved its goals; documentation and communication embed learning across the site.

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