NCCER Electrical Module 2 (Electrical
Safety) Questions and Answers | Latest
Version | 2024/2025 | Correct & Verified
What is the primary purpose of electrical safety?
✔✔To prevent accidents, injuries, and fatalities caused by electrical hazards.
Why is it important to de-energize electrical circuits before working on them?
✔✔To ensure that there is no electrical current flowing, which reduces the risk of electric shock.
How should electrical tools and equipment be inspected for safety?
✔✔Check for visible damage, ensure proper grounding, and verify that insulation is intact.
What should you do if you are unsure whether an electrical circuit is de-energized?
✔✔Use a voltage tester to confirm that there is no electrical current present.
Why is it important to use insulated tools when working with electricity?
✔✔Insulated tools prevent accidental contact with live wires, reducing the risk of electric shock.
1
, What type of personal protective equipment (PPE) should be worn when working with
electricity?
✔✔Rubber gloves, safety glasses, and flame-resistant clothing, depending on the situation.
Why is grounding important in electrical systems?
✔✔Grounding provides a safe path for electricity to follow in case of a fault, preventing shock
hazards.
What should you do if you notice an electrical wire is frayed or exposed?
✔✔Immediately report it and avoid using the circuit until it is repaired by a qualified electrician.
How can you avoid overloading an electrical circuit?
✔✔Be mindful of the maximum load capacity, and avoid plugging in too many devices at once.
Why is it important to label electrical panels and circuit breakers?
✔✔Proper labeling helps identify circuits quickly in emergencies and ensures safe operation.
What is the proper procedure for shutting off electrical power during an emergency?
2
Safety) Questions and Answers | Latest
Version | 2024/2025 | Correct & Verified
What is the primary purpose of electrical safety?
✔✔To prevent accidents, injuries, and fatalities caused by electrical hazards.
Why is it important to de-energize electrical circuits before working on them?
✔✔To ensure that there is no electrical current flowing, which reduces the risk of electric shock.
How should electrical tools and equipment be inspected for safety?
✔✔Check for visible damage, ensure proper grounding, and verify that insulation is intact.
What should you do if you are unsure whether an electrical circuit is de-energized?
✔✔Use a voltage tester to confirm that there is no electrical current present.
Why is it important to use insulated tools when working with electricity?
✔✔Insulated tools prevent accidental contact with live wires, reducing the risk of electric shock.
1
, What type of personal protective equipment (PPE) should be worn when working with
electricity?
✔✔Rubber gloves, safety glasses, and flame-resistant clothing, depending on the situation.
Why is grounding important in electrical systems?
✔✔Grounding provides a safe path for electricity to follow in case of a fault, preventing shock
hazards.
What should you do if you notice an electrical wire is frayed or exposed?
✔✔Immediately report it and avoid using the circuit until it is repaired by a qualified electrician.
How can you avoid overloading an electrical circuit?
✔✔Be mindful of the maximum load capacity, and avoid plugging in too many devices at once.
Why is it important to label electrical panels and circuit breakers?
✔✔Proper labeling helps identify circuits quickly in emergencies and ensures safe operation.
What is the proper procedure for shutting off electrical power during an emergency?
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