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Electrical Machines

Electrical Machines
If a DC Series motor is connected across an AC supply it will

 not run.
 run at lower speed.
 run at normal speed.
 burn.

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Electrical Machines
Reactive power generated or delivered significantly depends on

 both 1 and 2.
 excitation.
 frequency.
 load angle.

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Electrical Machines
Induction motors provided with open slots have

  less breakdown torque.
  leading power factor.
  more breakdown torque.
  higher efficiency.

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Electrical Machines
The output indicate on the name plate of any motor is always the

 Power drawn in KVA.
 Power drawn in KW.
  Output power at the shaft.
 Gross power.

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Electrical Machines
A frog leg winding is used in a DC machine to eliminate

 reactance voltage produced due to communication.
 the use of compensating winding.
 the use drum winding.
  the use equalizer in lap winding.

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Electrical Machines
What type of connection is made in between the inter-pole and the field winding?

 Parallel.
  Series.
 None of the options.
 Compound.

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MORE MCQ ON Electrical Machines

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