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SYNCHRONOUS MOTORS

Synchronous Motors
A 50 Hz synchronous motor runs at 200 rpm. The number of salient poles on the rotor are______

None of the listed here
16
36
30

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Synchronous Motors
A synchronous motor is a ______ motor.

None of the listed here
Singly fed
Variable speed
Variable pf

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Synchronous Motors
Small synchronous motors are started by _______

Variable frequency source
None of the listed here
Damper winding
Pony motor

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Synchronous Motors
A synchronous motor runs at speed ranging from ______

3600 to 6000 rpm
None of the listed here
1800 to 3600 rpm
150 to 1800 rpm

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Synchronous Motors
The rotor of a synchronous motor is

Nonsalient pole type
Salient pole type
None of the listed here
Identical to that of a dc motor

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