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Three Phase Induction Motors

Three Phase Induction Motors
The maximum torque in an induction motor depends on

Rotor inductive reactance
Square of supply voltage
All of the listed here
Frequency

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Three Phase Induction Motors
The power factor of an induction motor under no load conditions will be closer to

0.5 leading
Unity
0.2 lagging
0.2 leading

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

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

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Three Phase Induction Motors
Insertion of resistance in the rotor of an induction motor to develop a given torque

Decreases the rotor current
Rotor current remains same
Rotor current becomes zero
Increases the rotor current

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

Mutual induction
Eddy currents
Self induction
Hysteresis

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Three Phase Induction Motors
In an induction motor, no load the slip is generally

Less than 1%
1.5 %
4%
2%

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MORE MCQ ON Three Phase Induction Motors

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