21) Which type of starter is used with reduced voltage tappings for 3 phase induction motor?

D.O.L starter

Star delta starter

Auto transformer starter

Rotor resistance starter

Answer is:

Auto transformer starter

By reducing supply voltage

By adjusting the tappings by handle

By using step down transformer

By adding resistance with rotor

Answer is:

Squirrel cage induction motor

Double squirrel cage induction motor

Slip ring induction motor

Single phase induction motor

Answer is:

Repulsion motor

Permanent capacitor motor

3 Phase slip ring induction motor

3 Phase single squirrel cage induction motor

Answer is:

To reduce the slip

To control the speed

To reduce the losses

To get high starting and running torque

Answer is: