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Electrical Machines

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

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

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Electrical Machines
Which of the following is the largest conversion device?

 DC machine
 Synchronous machine
All of these
 Induction machine

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Electrical Machines
The primary and secondary windings of a transformer are

 mechanically linked.
  conductively linked.
 electrically linked.
  inductively linked.

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Electrical Machines
A DC series motor is running at rated speed without any additional resistance in series. If an additional resistance is placedin series, the speed of motor

 Oscillates around the rated speed.
  Decreases.
 Increases.
 Remains unchanged.

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Electrical Machines
Rotating part of DC motor is known as

 Armature.
 Carbone brush.
 Pole.
 Starter.

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Electrical Machines
DC machine is a

 conduction machine.
 convection machine.
 both are correct.
 none of above are correct.

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