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Three Phase Induction Motors

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

Starting
Full load
Half full load
No load

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Three Phase Induction Motors
The stator of a three phase induction motor produces _______ magnetic field.

Alternating
Rotating
Steady
None of the listed here

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Three Phase Induction Motors
The rotor of an induction motor runs at

Synchronous speed
Any of the above
Below synchronous speed
Above synchronous speed

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Three Phase Induction Motors
The condition of induction motor on load resemble those of a transformer whose secondady is _______

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

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

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

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Three Phase Induction Motors
The speed of a squirrel cage induction motor is changed by

Pole changing
Rheostatic control
None of the listed here
Cascade control

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