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Electrical Machines

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

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

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Electrical Machines
The type of DC motor used for shears and punches is

  Cummulative compound motor.
 Shunt motor.
 Series motor.
 Differential compound motor.

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Electrical Machines
Transformer core is laminated to reduce

 both 1 and 2.
 copper loss.
 hysteresis loss.
 eddy current loss.

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Electrical Machines
The primary and secondary windings of a transformer are

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

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Electrical Machines
Lap winding is prefered for which type of machines?

 high current and low voltage
 high current and high voltage
 low current and low voltage
 low current and high voltage

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Electrical Machines
Shunt field of DC generators consists of--------number of turns and ---------- conductors respectively

 large and thin
 less and thin
 less and thick
 large and thick

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