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Electrical Machines

Electrical Machines
In a synchronous motor, damper windings are provided on

  stator frame.
None of these
  pole faces.
  rotor shaft.

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Electrical Machines
Capacitor start capacitor run provides

  high power factor only.
  none.
  high staring torque only.
  high staring torque and high power factor.

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Electrical Machines
Which of the following motor is suitable for frequent starting and stoppings?

 Capacitor start motor
 Resistance split phase motor
All of these
 Capacitor start capacitor run motor

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Electrical Machines
At stand still condition the value of slip is

 1
 infinite value
 finite value
 0

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Electrical Machines
If the speed of a dc motor increases with load torque, then it is a

 differentially compounded motor
 comulatively compounded motor
 permanent magnet motor
 series motor

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Electrical Machines
For a dc machine shunt resistance and armature resistance values are

 high and low
 low and low
 low and high
 high and high

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MORE MCQ ON Electrical Machines

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