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Electrical Machines

Electrical Machines
Diverters are used only in

 series motors
None of these
 shunt motors
 either of these

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Electrical Machines
Which of the following alternators contain large number of poles?

 Turbo alternators.
None of these
 Hydro alternators.
 Aame in both alternators.

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Electrical Machines
Dissolve gas analysis of transformer oil is carried out to determine

 condition of transformer oil.
 condition of bushings.
  condition of transformer.
 condition of bushing stud.

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Electrical Machines
If the no-voltage release in a DC motor starter fails to operate on failure of supply, on resumption of supply the motor will

 develop very low starting torque.
 start automatically without trouble.
 not start automatically.
 get damaged.

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Electrical Machines
Synchronous condensers are used to

 improve the power factor
 reduce hunting
All of these
 improve starting torque

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Electrical Machines
When a transformer is loaded, the secondary terminal voltage drops. That means power factor is

 leading.
  lagging.
 unity.
 zero.

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MORE MCQ ON Electrical Machines

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