Safety and Emergency Procedures Flashcards
7 cards from real CME 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 and Emergency Procedures flashcards as text
An electrician discovers a coworker unresponsive after contact with a live panel. The scene is confirmed safe. What is the correct sequence of actions?
Answer: Call 911, check responsiveness, begin CPR if needed, use AED if available
The correct chain of survival is: call 911, assess the victim, begin CPR if needed, and deploy an AED as soon as possible.
Under NFPA 70E, what document must be generated before any electrical work begins on equipment that cannot be de-energized?
Answer: An energized electrical work permit signed by management
NFPA 70E requires an energized electrical work permit, signed by an authorized management representative, before energized work proceeds.
What is the purpose of an equipotential bonding grid on a livestock farm electrical installation?
Answer: To reduce neutral-to-earth voltage that can harm animals and personnel
Equipotential bonding grids equalize potential across areas where animals or people stand, eliminating dangerous step-and-touch voltage differences.
OSHA 1926.416 requires that before electrical work begins, the qualified person must determine the nominal voltage of exposed live parts. What minimum insulated tool rating is required for work on systems up to 1,000V?
Answer: 1,000V rated
Insulated tools used on systems up to 1,000V must be rated for at least 1,000V per OSHA construction electrical safety requirements.
Which NFPA 70E arc flash PPE category requires a minimum arc rating of 40 cal/cm²?
Answer: Category 4
NFPA 70E PPE Category 4 requires a minimum arc rating of 40 cal/cm² for all PPE components.
A 480V motor control center is being serviced. The qualified electrician must maintain what minimum distance for the restricted approach boundary?
Answer: Avoid contact (1 inch)
Per NFPA 70E Table 130.4(D)(a), for 151–750V systems, the restricted approach boundary is 'avoid contact' (essentially 0 inches clearance).
Which type of injury accounts for the majority of electrical fatalities in the US construction industry according to OSHA statistics?
Answer: Electrocution from contact with energized conductors
Direct electrocution from contact with energized conductors is the leading cause of electrical fatalities in US construction.