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Electrical Machines

Electrical Machines
At stand still condition the value of slip is

 finite value
 1
 0
 infinite value

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Electrical Machines
Compensating winding are used to rectify the flux density waveform at

  region under main pole.
 interpole region.
 throughout the air gap.
None of these

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Electrical Machines
For power factor improvement the synchronous motor is to be

 lightly loaded and over excited
 heavily loaded and underexcited
 heavily loaded and over excited
 lightly loaded and underecited

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Electrical Machines
In above question, find rms line voltage for delta connection?

  230.2 V.
 399 V.
 100 V.
 50 V.

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Electrical Machines
Damper winding is used to

 both 1 and 2.
 increase the load current.
 decrease the load current.
 suppress the hunting.

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Electrical Machines
Universal motors are used in

 food processing
All of these
 cranes
 traction

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MORE MCQ ON Electrical Machines

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