Safety Trained Supervisor Safety Trained Supervisor MCQ 5 — Questions and Answers
Question 1: When must an employer provide hearing protection to workers exposed to workplace noise?
- Only when noise exceeds 100 dB on a time-weighted average
- When noise exposure reaches or exceeds an 8-hour TWA of 85 dB (Correct answer)
- Whenever any worker requests it regardless of noise levels
- Only after a worker reports hearing loss symptoms
Correct answer: When noise exposure reaches or exceeds an 8-hour TWA of 85 dB
OSHA's Hearing Conservation Standard (29 CFR 1910.95) requires hearing protection when 8-hour TWA noise reaches the 85 dB action level.
Question 2: A supervisor is responsible for conducting daily toolbox talks. The PRIMARY benefit of this practice is:
- Satisfying OSHA documentation requirements for the day
- Reinforcing safety awareness and identifying hazards before work begins (Correct answer)
- Replacing the need for formal safety training programs
- Providing legal protection against worker compensation claims
Correct answer: Reinforcing safety awareness and identifying hazards before work begins
Daily toolbox talks engage workers in hazard awareness and reinforce safety behaviors at the start of each shift before work begins.
Question 3: Under OSHA's Respiratory Protection Standard, a medical evaluation for respirator use must occur:
- Only after an incident involving chemical exposure
- Before the employee is fit-tested or uses a respirator (Correct answer)
- Annually regardless of respirator type
- Only for SCBA users, not half-face respirator users
Correct answer: Before the employee is fit-tested or uses a respirator
OSHA requires medical clearance before fit-testing or respirator use to ensure wearing a respirator won't harm the worker's health.
Question 4: Which scenario represents an imminent danger situation under OSHA standards?
- An employee working without safety glasses in a low-risk area
- A condition where death or serious injury is likely to occur immediately (Correct answer)
- A housekeeping deficiency in a low-traffic area
- An expired fire extinguisher inspection tag
Correct answer: A condition where death or serious injury is likely to occur immediately
Imminent danger is defined as any condition or practice where there is reasonable certainty that death or serious physical harm could occur immediately.
Question 5: A supervisor reviewing injury logs notices a cluster of back strain injuries in one department. The BEST next step is to:
- Distribute a memo reminding workers to lift properly
- Conduct a targeted ergonomic assessment of that department's tasks (Correct answer)
- Increase the frequency of safety meetings company-wide
- Wait to see if the trend continues before taking action
Correct answer: Conduct a targeted ergonomic assessment of that department's tasks
A cluster of similar injuries indicates a systemic ergonomic hazard that requires targeted job analysis and corrective action, not just retraining.
Question 6: The correct order of steps in accident investigation is:
- Assign blame, document injuries, retrain employees, close case
- Secure the scene, gather facts, analyze causes, implement corrective actions (Correct answer)
- Call OSHA, interview witnesses, issue citations, complete OSHA 301
- Retrain involved workers, document findings, monitor for recurrence
Correct answer: Secure the scene, gather facts, analyze causes, implement corrective actions
Effective accident investigation follows a structured sequence: secure/preserve the scene, collect evidence, determine root causes, then implement and track corrective actions.
Question 7: An STS credential is awarded by which organization?
- OSHA (Occupational Safety and Health Administration)
- BCSP (Board of Certified Safety Professionals) (Correct answer)
- NSC (National Safety Council)
- ANSI (American National Standards Institute)
Correct answer: BCSP (Board of Certified Safety Professionals)
The Safety Trained Supervisor (STS) credential is administered by the Board of Certified Safety Professionals (BCSP).
Safety Trained Supervisor Safety Trained Supervisor MCQ 5
When must an employer provide hearing protection to workers exposed to workplace noise?