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Electrical Machines

Electrical Machines
Hysteresis loss will depends on

 f²
 f1.6
 f³
 f

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Electrical Machines
When two DC series motors are connected in parallel, the resultant speed is

 normal speed.
 more than normal speed.
 zero.
 less than normal speed.

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Electrical Machines
In a DC Motor 3 point starter is used to

 limit the starting current to a safer value.
 provide overload protection.
 provide protection against Low-Voltage.
 all of above.

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Electrical Machines
Reluctance and hysteresis motors are the types of which electrical motor?

  1 - Φ synchronous motor.
 DC motor.
 Stepper motor.
 3 - Φ induction motor.

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Electrical Machines
A DC compound motor has

 only series field winding.
 tertiary winding.
 both shunt and series field winding.
 only shunt field winding.

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Electrical Machines
Slip rings of an induction motors are made of

  carbon.
  aluminium.
  phosphor bronze.
  stainless steel.

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MORE MCQ ON Electrical Machines

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