_____ is the maximum approved electrical trade size for PVC conduit:

______ circuit breakers or sets of fuses are acceptable as over current device to provide overload protection in one family dwellings:

A 500 kva 240 volt single phase transformers impedance is 1%. What is the short circuit current?

A branch circuit for an appliance that�s a continuous load must be rated not less than _____ of the marked ampere ratings of the appliance:

A circuit breaker used as a switch shall be installed so the highest position of its operating handle is not more than ______ above the floor.

A cord no longer than ____ with an attachment plug and containing a copper equipment grounding conductor not smaller than 12 AWG is permitted for pool motors:

A flexible cord is permitted for an in-sink waste disposal if the cord length is no longer than _____:

A luminaire (fixture) that weighs more than _______ lb or exceeds 400 mm (16 in.) in any dimension shall not be supported by the screw shell of a lampholder.

A metal underground water pipe in direct contact with the earth for at least 10 feet has traditionally been a preferred grounding electrode. For all new construction, a metal underground water pipe is _______.

A switch or circuit breaker enclosure may be used as a raceway if the conductor fill doesnot exceed _____ :