Electrician Practice Tests

The rated ampacity of a 1/0 THWN in a wet location is 150 amperes. If the same conductor is operated at ambient temperature of 40⁰C. What is its corrected ampacity?

When eight three wire type AC cables are bundled in a raceway of length more than 24 inch. what is the adjustment factor that must be applied?

The flexible cords employed for pool associated motors shall not exceed ………….. feet in length.

Whether by receptacle or direct connection the outlets supplying pool pump motors shall be provided with …………………………………… protection

When a conduit run passing from a Class I , Division 2 location into a unclassified location must have seal located with …………….. feet of the boundary.

If a panel board is supplied by a transformer. The over current device must be located …………. side of the transformer

Which of the following is the maximum rating of a branch circuit that supply the primary of low voltage lighting system power supply?

A lighting unit is connected on a 20 ampere branch circuit on which a fastened-in place appliance is located. What is the maximum percentage branch circuit rating is permitted on the appliance?

Which of the following is the smallest size wire permitted for a feeder circuit?

When two or more single phase electric ranges are supplied by a 3 phase , 4 wire feeder, the total load computed is on the basis of ………………………….