NATE: AC Motors Exam Questions With Verified Answers.

NATE: AC Motors Exam Questions With Verified Answers. An AC motor is used to - answerConvert electrical energy to mechanical energy What is the maximum voltage that can be used on a 120 volt motor - answer132 volts What is the minimum voltage that can be used on a 120-volt motor - answer108 volts The shaft of a motor is connected to the - answerRotor The poles of a motor are also known as the - answerStator Increasing the poles of a motor - answerDecreases the speed of the motor A 240-volt, 60 Hz motor with four poles will operate at - answer1,800 rpm A 240-volt, ^0 Hz motor with six poles will operate at - answer1,200 rpm The definition of horsepower is - answerThe amount of power to raise 550 lbs in one second One horsepower is equivalent to - answer746 watts On a single-phase motor, where would the highest resistance be found - answerRun to start On a single-phase motor, where would the lowest resistance be found - answerRun to common When is the start winding removed from the electrical circuit - answerWhen the motor reaches 75% of its running speed In a single-phase motor the start winding is - answer90 degrees out of phase with the run winding In a single-phase motor the start and run winding are wired - answerIn parallel with each other When testing the windings of a single-phase motor with an ohmmeter, the meter should always be set on - answerR X 1 Checking resistance of a single-phase compressor motor ohmmeter readings are T1 to T2 is 3 ohms, T2 to T3 is 5 ohms, T1 to T3 is 8 ohms. Which terminals are run, start, common - answerT1 is run, T2 is common, T3 is start