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Electrical Machines

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

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

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Electrical Machines
An ideal DC generated is one that has _____________ voltage regulation.

 positive.
  zero.
 low.
 negative.

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Electrical Machines
In a DC machine, the angle between the stator and rotor fields is

 0o.
 90o.
 dependent upon the load.
 180o.

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Electrical Machines
Capacitor fitted with ceiling / table fans is of the value of

 0.1 µF.
  1 - 2 µF.
 5 - 10 F.
  2 - 3 µF.

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Electrical Machines
A separately excited DC motor has an armature resistance of 0.5 Ohm. The supply voltage is 250V. Armature current is 20A and the speed of rotation is 1500 rpm. Find the torque developed?

 Zero
 15.6 Nm
 16.55 Nm
 15.28 Nm

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Electrical Machines
Universal motor have which of the following application?

  Traction.
  Lift.
  Food mixer.
  Domestic pump.

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MORE MCQ ON Electrical Machines

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