1. Receptacle outlet location for new electrical service (other than one- and two-family dwellings):
- Answer: At least 50 feet of the electrical service equipment.
2. Definition of ampacity of a conductor according to NEC:
- Answer: The maximum current, in amperes, a conductor can carry continuously without exceeding its
temperature rating.
3. Listing requirement for disconnect switch enclosure in a Class II, Division 2 location:
- Answer: Dusttight.
4. Classification of the interior of enclosures or raceways installed underground:
- Answer: Dry location.
5. Maximum allowable current-carrying capacity of four 1/0 AWG THW copper conductors in a common
raceway at 86°F:
- Answer: 120 amperes.
6. Definition of a continuous load according to NEC:
- Answer: A load where the maximum current on the circuit is expected to continue for at least three
hours or more.
7. Maximum number of switches or circuit breakers in the service disconnecting means:
- Answer: Not more than six.
8. Maximum standard ampere rating for overcurrent protection with 75 amperes allowable ampacity:
- Answer: 80 amperes.
, 9. Full-load running current rating for a 208-volt, 3-phase, 50 hp motor:
- Answer: 143 amperes.
10. Maximum distance for a disconnect switch from the operator's station for a portable carnival ride:
- Answer: 6 feet.
11. Minimum trade size of electrical metallic tubing (EMT) for eight size 6 AWG conductors in a 50-foot
run:
- Answer: 1 1/4 in.
12. Overcurrent protection device rating for a continuous load of 240 amperes:
- Answer: At least 300 amperes.
13. Maximum distance LFMC must be securely fastened from each box or conduit termination:
- Answer: 12 inches.
14. Length of a pull box for conductors size 4 AWG and larger for a straight pull:
- Answer: Not less than eight times the trade diameter of the largest conduit entering the box.
15. Maximum fill of conduit nipples not over 24 inches in length:
- Answer: 60 percent of their cross-sectional area.
16. Maximum number of size 14 AWG THHN conductors in 3/8 in. FMC with a bare size 14 AWG
grounding conductor:
- Answer: Four.
17. Type of conduit permitted by NEC for underwater pool luminaires:
- Answer: Schedule 40 rigid polyvinyl chloride conduit (PVC).