AC 3 PHASE INDUCTION MOTOR - Quiz

1) Which type of rotor is used in squirrelcage induction motor?

Wound type Squirrel cage Slipring type Projecting type

2) Why rotor bars of squirrel cage induction motor is skewed?

Reduce magnetic humming Reduce losses Improve efficiency Improve capacity

3) How to change the direction of rotation of a 3f squirrel cage induction motor?

By interchanging three terminals By interchanging any two terminals By disconnecting one terminal By reducing the applied voltage

4) Which type of starter is recommended to start upto 3 HP squirrelcage induction motors?

DOL starter Auto transfer starter Star-delta starter Rotor resistance starter

5) Which starter is in simple expensive and easy to start?

Rotor resistance starter DOL starter Semi automatic star delta starter Auto transformer starter