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Three Phase Induction Motors

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

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

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

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

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Three Phase Induction Motors
An induction motor is so called because its operation depends on

Eddy currents
Mutual induction
Self induction
Hysteresis

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

None of these
Shaft
Stator core
Bearings

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Three Phase Induction Motors
The 3- phase induction motor is so designed that the rotor should have ______ under running conditions.

high resistance
Low resistance
High reactance
Large slip

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

Slip ring induction motor
Squirrel cage induction motor
None of the listed here
Both squirrel cage and slip ring

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