A centrifugal switch is used to dis- connect ‘starting winding when motor has___________?

Single Phase Induction Motors 22/06/2021

A. run for about 1 minute
B. run for about 5 minutes
C. picked up about 50 to 70 per cent of rated speed
D. picked up about 10 to 25 per cent of rated speed

Related Mcqs:

    If a particular application needs high speed and high starting torque, then which of the following motor will be preferred ?
    A. Universal motor B. Shaded pole type motor C. Capacitor start motor D. Capacitor start and run motor...
    Which of the following motors can be run on AC. as well as D.C. supply ?
    A. Universal motor B. Repulsion motor C. Synchronous motor D. Reluctance motor...
    As hysteresis motors are free from mechanical and magnetic vibrations therefore these are considered as suitable for__________?
    A. fans B. blowers C. sound equipment D. mixer grinders...
    The purpose of stator winding in the compensated repulsion motor is to_____________?
    A. provide mechanical balance B. improve power factor and provide better speed regulation C. prevent hunting in the motor D. eliminate armature reaction...
    A repulsion motor is equipped with__________?
    A. slip rings B. commutator C. both A. and (b) D. none of the above...

Leave a Reply

Your email address will not be published. Required fields are marked *