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Three Phase Induction Motors

Three Phase Induction Motors
Less maintenance troubles are experienced in case of

Squirrel cage induction motor
None of these
Slip ring induction motor
Both (A) and (B)

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Three Phase Induction Motors
A four speed squirrel cage induction motor uses______ stator windings.

Two
One
Four
Three

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Three Phase Induction Motors
If a 3-phase induction motor is running at slip S, then rotor copper loss is equal to

S × rotor input
(1-S) × rotor input
None of the listed here
(1+S) × rotor input

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Three Phase Induction Motors
One of the speeds of a 2 speed squirrel cage induction motor is 800 rpm. The other speed will be _____

1200 rpm
400 rpm
2400 rpm
1600 rpm

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Three Phase Induction Motors
The air gap between stator and rotor of 3-phase induction motor ranges from ______

0.4 mm to 4 mm
1 cm to 2 cm
4 cm to 6 cm
2 cm to 4 cm

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Three Phase Induction Motors
The starting torque of a squirrel cage induction motor is

Slightly more than full load torque
Low
Same as full load torque
Negligible

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MORE MCQ ON Three Phase Induction Motors

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