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Synchronous Motors

Synchronous Motors
The size of a synchronous motor is determined by its _____

kVA rating
kVAR rating
None of the listed here
kW rating

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Synchronous Motors
The pull out torque of a synchronous motor is generally ______ times its full-load torque.

0.5
6 to 9
1.25 to 3.5
5 to 10

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Synchronous Motors
When the synchronous motor runs at synchronous speed, the voltage induced in the damper winding is _____

Zero
minimum
None of the listed here
Maximum

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Synchronous Motors
The speed of a synchronous motor

Always remains constant
Decreases as the load decreases
Increases as the load increases
None of the listed here

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Synchronous Motors
For reciprocating compressor, the synchronous motor is designed to have pull in torque of about ______ times the full load torque.

0.5
6
5
2

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Synchronous Motors
The size of a synchronous motor decreases with the increase in

Horse power rating
Speed
Flux density
All of the listed here

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