Electrician Practice Tests

If two ends of 1000 ft No.10 Aluminum AWG wire are connected to 240 V electrical source, What will be the current flows in the circuit?

The Power factor in an electrical circuit is

What is the maximum voltage drop in a branch circuit conductors at the farthest outlet is …………..

In an electric circuit doubling the voltage reduces the voltage drop in volts exactly ………..%, if the wire size, power and distance are unchanged.

Any size of the wire will carry any given amount of power in watts at 240 volts ……… times as far as it will at 120 volts.

The following quantity is measured using tachometer ?

If the distance between two capacitive plates is decreased, the capacitance ………………..

The maintenance of squirrel cage induction motor is less compared to DC Motor.

The motor operating at a voltage 10% lower than normal will deliver only ……..% of its normal power.

A 5hp motor having a service factor of 1.15 can be used continuously as a …………………….  HP motor.

Where live parts are exposed on front side of electrical equipment, what shall be the minimum working space provided in front of such equipment?

An electrical heater draws 8 amperes current from 120 volts power source. What is the resistance of heater?

Cable tray systems shall not be used in …………..

The service conductors that passes over a flat roof must have a vertical clearance of not less than …………. From the roof.

A separate overload protection must be provided for the motor rated more than ……………….