INDUCTION MOTORS EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED

INDUCTION MOTORS EXAM QUESTIONS AND ANSWERS

WITH COMPLETE SOLUTIONS VERIFIED


The type of the motor that does not have a commutator is the



A. repulsion motor

B. induction motor

C. dc shunt motor

D. ac series motor


B. induction motor


A certain motor is driven by a 1750 rpm dc shunt motor. If the power supply is to be changed to three

phase, 50 cycles ac, the most suitable replacement motor would be



A. synchronous motor

B. capacitor motor

C. ac commutator motor

D. squirrel cage induction motor


D. squirrel cage induction motor


The principle of operation of the induction motor is based on



A. Faraday's law

, B. rotating magnetic field

C. Flemming's right hand rule

D. Ohm's law


B. rotating magnetic field


The rotor of an induction motor gets its power from



A. the line voltage

B. slip rings

C. a centrifugal switch

D. magnetic induction


D. magnetic induction


The induction motors are designed for



A. three phase

B. two phase

C. single phase

D. all of the above


D. all of the above


The rotor speed of an induction motor is



A. the same as the synchronous speed

B. faster than the synchronous speed