CME Safety and Emergency Procedures 3

Question 1

An electrician discovers a coworker unresponsive after contact with a live panel. The scene is confirmed safe. What is the correct sequence of actions?

Accepted Answer

Call 911, check responsiveness, begin CPR if needed, use AED if available

Answer

The correct chain of survival is: call 911, assess the victim, begin CPR if needed, and deploy an AED as soon as possible.

Question 2

Under NFPA 70E, what document must be generated before any electrical work begins on equipment that cannot be de-energized?

Accepted Answer

An energized electrical work permit signed by management

Answer

NFPA 70E requires an energized electrical work permit, signed by an authorized management representative, before energized work proceeds.

Question 3

What is the purpose of an equipotential bonding grid on a livestock farm electrical installation?

Accepted Answer

To reduce neutral-to-earth voltage that can harm animals and personnel

Answer

Equipotential bonding grids equalize potential across areas where animals or people stand, eliminating dangerous step-and-touch voltage differences.

Question 4

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?

Accepted Answer

1,000V rated

Answer

Insulated tools used on systems up to 1,000V must be rated for at least 1,000V per OSHA construction electrical safety requirements.

Question 5

Which NFPA 70E arc flash PPE category requires a minimum arc rating of 40 cal/cm²?

Accepted Answer

Category 4

Answer

NFPA 70E PPE Category 4 requires a minimum arc rating of 40 cal/cm² for all PPE components.

(CME) Certified Master Electrician Practice Test

(CME) Certified Master Electrician Practice Test

CME Safety and Emergency Procedures 3