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Three Phase Induction Motors

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

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

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Three Phase Induction Motors
The cogging of an induction motor can be avoided by

Proper ventilation
Auto transformer starter
Using DOL starter
Having number of rotor slots more or less than the number of stator slots

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Three Phase Induction Motors
3-phase wound rotor morors are also called _____ motors.

Synchronous
Commutator
Slip ring
Series

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Three Phase Induction Motors
In a squirrel cage induction motor, the number of stator slots is _______ rotor slots.

Either more or less than the number of
Always eqaul to the number of
Always greater than the number of
Always less than the number of

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Three Phase Induction Motors
The induction motor has lagging power factor during

Starting only
None of the listed here
Both starting and operation
Operation only

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Three Phase Induction Motors
In medium sized induction motor, the slip is generally around

0.04 %
14%
4 %
0.4 %

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MORE MCQ ON Three Phase Induction Motors

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