Electrician Practice Tests

In no-case the rating of a shot circuit ground fault protective device for single motor compressor should not exceed ……………. percent of the motor compressor rating?

What is the minimum ampere rating of short circuit ground fault protective device that can be used for industrial motor compressor?

Which of the following size conductor is required for a 18 A motor compressor connected to 240 V circuit at 75 ⁰C?

Which size branch circuit protection is required for 20A motor compressor connected to 240 Volts circuit?

What size branch conductor is suitable for 5 HP, 208 V three phase motor?

The single pole switches can be used to control the motors when those are rated at ………………. hp or less.

The branch circuit over current device of the stationary motor which are rated less than ……….. may serve as the controller of motor.

A 2400 volts motor disconnecting means must be capable of being of being locked in the ………………….

The overload protection must be provided for the motor if it is rated more than ……… hp

A disconnecting means should be located in sight from a motor not more than …………… distance.