ETC Safety Standards & Regulatory Compliance 3 — Questions and Answers
Question 1: Under OSHA's Hazard Communication Standard (HazCom 2012), how many sections must a compliant Safety Data Sheet contain?
- 16 (Correct answer)
- 12
- 10
- 8
Correct answer: 16
GHS-aligned HazCom 2012 requires all SDSs to follow a standardized 16-section format.
Question 2: What is the maximum permissible exposure limit (PEL) for general industry noise established by OSHA as an 8-hour TWA?
- 90 dBA (Correct answer)
- 85 dBA
- 95 dBA
- 80 dBA
Correct answer: 90 dBA
OSHA's PEL for noise exposure in general industry is 90 dBA as an 8-hour time-weighted average (TWA).
Question 3: A confined space that contains or has potential for a hazardous atmosphere is classified as which type under OSHA 29 CFR 1910.146?
- Permit-required confined space (Correct answer)
- Non-permit confined space
- Restricted entry space
- Controlled atmosphere space
Correct answer: Permit-required confined space
A confined space with a hazardous atmosphere or other serious safety hazard meets OSHA's definition of a permit-required confined space.
Question 4: Which NEC article addresses the installation of electrical equipment in hazardous (classified) locations?
- Article 500 (Correct answer)
- Article 210
- Article 310
- Article 700
Correct answer: Article 500
NEC Article 500 covers requirements for electrical installations in hazardous locations where flammable gases, vapors, or dusts may be present.
Question 5: When must an employer provide a written Exposure Control Plan under OSHA's Bloodborne Pathogens standard?
- When employees have occupational exposure to blood or other potentially infectious materials (Correct answer)
- Only when a needlestick incident has occurred
- When more than 10 employees work in a healthcare setting
- Annually regardless of exposure risk
Correct answer: When employees have occupational exposure to blood or other potentially infectious materials
OSHA 29 CFR 1910.1030 requires a written Exposure Control Plan for any employer whose workers have occupational exposure to bloodborne pathogens.
Question 6: What is the primary purpose of a ground fault circuit interrupter (GFCI) in construction and industrial settings?
- To protect persons from electric shock by detecting current leakage to ground (Correct answer)
- To prevent equipment damage from voltage surges
- To limit overload current to prevent wire fires
- To balance three-phase loads automatically
Correct answer: To protect persons from electric shock by detecting current leakage to ground
GFCIs monitor the difference between current on the hot and neutral conductors and trip when leakage current (≥5 mA) indicates a path through a person.
Question 7: According to ISO 45001, what is the key difference between a 'hazard' and a 'risk' in occupational health and safety?
- A hazard is the source of potential harm; risk is the likelihood and severity of that harm occurring (Correct answer)
- A hazard is measurable; risk is theoretical
- A hazard affects equipment; risk affects personnel
- A hazard is immediate; risk is long-term
Correct answer: A hazard is the source of potential harm; risk is the likelihood and severity of that harm occurring
ISO 45001 defines a hazard as a source with potential to cause injury or ill health, while risk combines the likelihood of occurrence with the severity of potential harm.
ETC Safety Standards & Regulatory Compliance 3
Under OSHA's Hazard Communication Standard (HazCom 2012), how many sections must a compliant Safety Data Sheet contain?