Equipment Requirements

Do you know the National Electrical Code requirements for equipment? Use this quiz to test your knowledge.

1. What is the maximum percentage of conduit fill for over three current-carrying conductors in rigid metal conduit?

Correct Answer: 40%

2. Where an intermediate metal conduit sleeve is installed for physical protection of a grounding electrode conductor, the fill limitations are maximum 53% for the conduit.

Correct Answer: False

3. What is the maximum size overcurrent protective device permitted if a length of 3/4-inch liquidtight flexible metal conduit is installed and used as an equipment grounding conductor?

Correct Answer: 6 feet

4. The NEC requires all equipment to be certified (listed).

Correct Answer: False

5. Flexible metal conduit is permitted for branch circuits, but the length is limited to 6 feet.

Correct Answer: False

6. If a mandatory exception follows an NEC requirement, the exception must be applied and complied with.

Correct Answer: True

7. Which of the following is not the responsibility of the authority having jurisdiction?

Correct Answer: Equipment listing

8. An outlet installed on a branch circuit is required to include a receptacle to plug in cord-and-plug-connected equipment.

Correct Answer: False

9. Which of the following meets the NEC requirements for ground-fault circuit interrupter (GFCI) protection for personnel?

Correct Answer: Class A GFCI

10. Where NEC requirements refer to a service disconnecting means, which of the following is not applicable?

Correct Answer: A disconnecting means installed for service of air-conditioning equipment