AC Three Phase Motor MCQ with Answers

Will not run

Runs at slow speed

Runs at very high speed

Runs but not able to pull load

Motor runs normally

Motor stop instantaneously

Motor runs slowly, finally it burns

Motor runs with irregular speed

Motor stops at once

Motor will run normally

Motor runs with humming noise with slow speed

Motor will run slow speed but winding will be burnt out shortly

Improper phase sequence

Fluctuations in line voltage

Loose contact in supply lines

Wrong terminal connections at motor

Wrong motor connection

Wrong starter connection

Open circuit in rotor winding

Partially shorted stator winding