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Electrical Machines

Electrical Machines
Which of the following induction motor has maximum speed?

 6 pole.
 8 pole.
  2 pole.
 4 pole.

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

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

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Electrical Machines
Slot wedges in a dc machine is made up of

 cast iron.
 fibre.
 silicon steel.
 mild steel.

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Electrical Machines
The maximum power developed in cylindrical synchronous machine is occurs at a load angle of

 less than 90o.
 Greater than 90o.
 0o.
 90o.

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Electrical Machines
The torque developed in IM is nearly proportional to

  V2.
 1 / V2.
  V.
  1 / V.

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Electrical Machines
In DC machine shape of main field flux distribution is?

 saddle shape
 flat tapped or trapezoidal
 peaky in nature
 triangular

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