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Three Phase Induction Motors

Three Phase Induction Motors
In induction motor, percentage slip depends on

Supply frequency
Copper losses in motor
Supply voltage
None of these

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Three Phase Induction Motors
In a double squirrel cage induction motor, the outer cage winding has _______

None of the listed here
Low resistance
High resistance
High inductance

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

Series
Slip ring
Commutator
Synchronous

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

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

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Three Phase Induction Motors
The reactance of the rotor circuit of a 3-phase induction motor is maximum at

No load
Starting
Half full load
Full load

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Three Phase Induction Motors
Which of the following component is usually fabricated out of silicon steel?

Stator core
Shaft
None of these
Bearings

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