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AC 3 Phase Induction motor
10

AC 3 Phase Induction motor MCQ with Answers

10) Which material is used to wound outer cage rotor bars of a double squirrelcage induction motor?

Brass

Aluminium

Copper

Silicon steel

Answer is:

Brass

AC 3 Phase Induction motor MCQ with Answers

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Related AC 3 Phase Induction motor MCQ with Answers

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

Wound type

Squirrel cage

Slipring type

Projecting type

Answer is:

Squirrel cage

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

Reduce magnetic humming

Reduce losses

Improve efficiency

Improve capacity

Answer is:

Reduce magnetic humming

13) 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

Answer is:

By interchanging any two terminals

14) 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

Answer is:

DOL starter

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