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Three Phase Induction Motors

Three Phase Induction Motors
For the same kVA rating, the leakage flux in induction motor is _______ that of transformer.

About the same
None of the listed here
More than
Less than

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Three Phase Induction Motors
The torque developed by a 3 phase induction motor least depends on

Rotor emf
Rotor current
Shaft diameter
Rotor power factor

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Three Phase Induction Motors
DOL starting of induction motors is usually restricted to

High speed motors
Low horsepower motors
High horsepower motors
Variable speed motors

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

None of these
Bearings
Stator core
Shaft

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

Mutual induction
Hysteresis
Eddy currents
Self induction

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Three Phase Induction Motors
The condition of induction motor at stand still resemble those of a transformer whose secondady is _______

Supplying a variable resistive load
Open circuited
None of the listed here
Short circuited

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