Conductors and Overcurrent Protection, 2023 NEC

1. What is the ampacity of 12 AWG THHN conductors installed at an ambient temperature of 80°F with three conductors in a raceway?

2. Article 240 does not allow __________ to be reconditioned.

3. If selective coordination of feeder overcurrent devices is required, they must also selectively coordinate with the __________ overcurrent device(s).

4. The minimum size copper conductor for general applications of 2000V and less is __________.

5. Overcurrent devices are not allowed in _________.

6. Which of these conductors are permitted in a wet location?

7. What is the minimum allowable interrupting rating for a branch-circuit overcurrent protection device?

8. Which of the following is a permitted method for restricting access to the adjustments of a circuit breaker?

9. Type __________ conductors are only permitted for switchboard and switchgear wiring.

10. Circuit breakers must be __________ free and capable of being manually opened and closed.

11. True or false? A circuit breaker with a slash rating, such as 120/240 or 480Y/277V is allowed on an ungrounded system.