Electrician Practice Tests

A NO.6 THW conductor is placed in a room where the ambient temperature of room is 52⁰C. What is its allowable ampacity?

The Minimum working clear distance in front of the enclosed equipment operating at a voltage 240 volts is ……………. feet

Dead ends of metal wireways need not be closed.

The conductors sized 1/0 AWG or smaller shall be permitted to be run in parallel for frequencies higher than ………………. HZ.

The motor ground fault protective device need to be capable of carrying the starting current of the motor.

In an electrical circuit the power dissipation in a resistor will be 1.2 W, which of the following resistor is best suitable to use under this power dissipation.

What type of lamp holders required in a branch circuit has the rating of 20 amp or more?

In wet area a raceway, fittings shall be spaced not less than ………..inch

What is the smallest size of conductor for power work as per NEC?

The minimum thickness of the sealing compound of completed seal conduit, except where it is used in cables shall not be less than ………… mm

Working space in rooms allocated for electrical equipment shall not be used for …………………..

An ohm meter connected across a 120 volts electrical heater shows 7.5 ohms, how much current the heater draws?

How many sets of 3 wire feeders shall be permitted to utilize a common neutral?

In which of the following the panel boards must be enclosed?

The maximum wattage of incandescent-lamps must not exceed …………… that may be used on medium bus lampholders.