213 Reading

What is the smallest size standard fuse?

1

What is not permitted to be used as an equipment grounding conductor?

10 feet of 1 inch flexible metal conduit

Which of the following is not a standard circuit breaker size?

75

Which of the following conduits is not permitted to be used to protect a grounding electrode conductor from physical damage?

Schedule 40 PVC

Which of the following is not allowed to act as a concrete encased electrode?

20 feet of #6 AWG bare copper

Circuit breakers and switches containing fuses shall be readily accessible and installed so that the center of the grip of the operating handle of the switch or circuit breaker, when in its highest position, is not more than ___ above the floor or working platform.

6 feet 7 inches

A conduit contains four dedicated circuits run from a single-phase panel. The circuits are controlled by breakers 1, 3, 5 and 7. How many equipment grounding conductors should be installed in the conduit?

One. Based on the overcurrent protective device of the largest circuit in the conduit.

Type 3 surge protective devices are permitted to be installed ___.

in a sub panel 100 feet away from the main distribution panel