Safety Practices & Risk Management Flashcards
7 cards from real PC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Safety Practices & Risk Management flashcards as text
Which OSHA standard primarily governs electrical safety in general industry workplaces?
Answer: 29 CFR 1910.333
29 CFR 1910.333 covers electrical safety-related work practices in general industry settings.
What is the minimum approach distance (MAD) used for in electrical safety?
Answer: The distance a worker must maintain from exposed energized conductors
MAD defines the closest a qualified worker can approach energized conductors based on system voltage.
A job hazard analysis (JHA) is best described as:
Answer: A formal study that identifies hazards associated with specific job tasks before work begins
A JHA proactively identifies hazards associated with each step of a task so controls can be implemented beforehand.
Which class of fire extinguisher is appropriate for energized electrical equipment fires?
Answer: Class C
Class C extinguishers use non-conductive agents and are rated for fires involving energized electrical equipment.
When using an insulated aerial lift near energized lines, workers must maintain a minimum clearance of how many feet from lines under 50 kV?
Answer: 10 feet
OSHA 29 CFR 1910.333 and NFPA 70E require at least 10 feet of clearance from unguarded energized lines up to 50 kV.
What does the term 'flash boundary' refer to in NFPA 70E?
Answer: The distance at which an arc flash could cause a second-degree burn through unprotected skin
The arc flash boundary is the distance where incident energy equals 1.2 cal/cm², which can cause a just-curable second-degree burn.
Which document must be completed before performing hot work (welding or cutting) near electrical installations?
Answer: Hot work permit
A hot work permit documents the hazards, precautions, and approvals required before any welding or open-flame work begins.