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

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

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Electrical Machines
Two synchronous generators operating in parallel 200 MW and 400 MW respectively. The drooping characteristics of their governors are 4% and 5% from no load to full load. Consider the governors operating at 50Hz on no load. How will the machine share, if the load is 600 MW?

 generator 2 gets over load
 generator 1 gets over load
None of these
 200 MW and 400MW

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Electrical Machines
In a 3 - Φ induction motor

  power factor at starting is low as compared to that while running.
  power factor at starting in the same as that while running.
  power factor at starting is high as compared to that while running.
  none of them.

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Electrical Machines
With the increase in speed of DC motor

 Back emf falls and line current increase.
 Both back emf as well as line current increase.
 Both back emf as well as line current fall.
  Back emf increase but line current falls.

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Electrical Machines
The coil spam

 must be exactly equal to people pitch.
 can never be equal to pole pitch.
 none of above.
  may or may not be exactly equal to people pitch.

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