Manufacturing and Production Manufacturing Safety (OSHA) 2 — Questions and Answers
Question 1: What is the OSHA permissible exposure limit (PEL) for noise in the workplace?
- 85 dBA as an 8-hour TWA
- 90 dBA as an 8-hour TWA (Correct answer)
- 95 dBA as an 8-hour TWA
- 100 dBA as an 8-hour TWA
Correct answer: 90 dBA as an 8-hour TWA
OSHA sets the PEL for occupational noise at 90 dBA as an 8-hour time-weighted average (TWA).
Question 2: Machine guarding under OSHA is required when:
- Only operating at night
- A machine has any point of operation, power transmission, or other moving parts that could injure workers (Correct answer)
- Machines are running at over 50% speed
- A machine is older than 10 years
Correct answer: A machine has any point of operation, power transmission, or other moving parts that could injure workers
OSHA 29 CFR 1910.212 requires guarding on any machine part, function, or process that may cause bodily injury.
Question 3: What is the OSHA General Duty Clause?
- A requirement to conduct daily safety briefings
- A provision requiring employers to provide a workplace free from recognized serious hazards (Correct answer)
- A rule mandating annual OSHA training
- A standard for chemical storage
Correct answer: A provision requiring employers to provide a workplace free from recognized serious hazards
Section 5(a)(1) of the OSH Act requires employers to provide a workplace free from recognized hazards likely to cause death or serious injury.
Question 4: Confined space entry in manufacturing requires:
- Only a supervisor's verbal approval
- A permit system, atmospheric testing, and trained attendants for permit-required confined spaces (Correct answer)
- Completion of a daily safety checklist
- Fire extinguisher presence only
Correct answer: A permit system, atmospheric testing, and trained attendants for permit-required confined spaces
OSHA's Permit-Required Confined Spaces standard (29 CFR 1910.146) mandates a written permit, atmospheric monitoring, and standby personnel.
Question 5: What does NFPA 70E address in industrial facilities?
- Flammable liquid storage
- Electrical safety in the workplace including arc flash hazards (Correct answer)
- Fire suppression systems
- Natural gas piping standards
Correct answer: Electrical safety in the workplace including arc flash hazards
NFPA 70E provides requirements for safe work practices to protect workers from electrical hazards including arc flash and shock.
Question 6: An OSHA 'willful violation' is defined as one where:
- The employer was unaware of the hazard
- The employer intentionally disregarded the law or showed plain indifference to worker safety (Correct answer)
- The violation occurred after hours
- The violation was self-reported
Correct answer: The employer intentionally disregarded the law or showed plain indifference to worker safety
Willful violations carry the highest OSHA penalties and occur when an employer knowingly allows a hazardous condition to exist.
Manufacturing and Production Manufacturing Safety (OSHA) 2
What is the OSHA permissible exposure limit (PEL) for noise in the workplace?