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Three Phase Induction Motors

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

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

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Three Phase Induction Motors
Friction and windage loss of a 3 phase induction motor are

Minimum at no load
None of the listed here
Remains the same at all loads
Maximum at no load

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Three Phase Induction Motors
If any two phases for an induction motor are interchanged

The motor will run in reverse direction
The motor will run at reduced speed
The motor will burn
The motor will not run

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

None of these
Stator core
Bearings
Shaft

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

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

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Three Phase Induction Motors
At no load the rotor core loss of a 3 phase induction motor is

Large
Small
Practically zero
None of the listed here

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