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AC 3 Phase Induction motor

AC 3 Phase Induction motor MCQ with Answers

AC 3 Phase Induction motor MCQ with Answers

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Related AC 3 Phase Induction motor MCQ with Answers

1) What is the speed of rotating magnetic field in a 3f induction motor?

Rotor speed

Synchronous speed

Motor speed

Rated speed

Answer is:

Synchronous speed

Explanation:

.

2) What is the synchronosis speed of a 3 phase induction motor if the supply frequency is 50 Hz and number of pole is 4?

1400 rpm

1500 rpm

1450 rpm

1000 rpm

Answer is:

1500 rpm

3) Which material is used to wound rotor of squirrel cage induction motor?

Aluminium

Enamelled copper conductor

Silicon steel

Copper bars

Answer is:

Copper bars

4) Which part of squirrel cage rotor is short circuited?

End rings

Shaft

End cover hysteresis

Bearings

Answer is:

End rings

AC 3 Phase Induction motor MCQ with Answers

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