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ELECTRICAL MACHINES

Electrical Machines
The shaft of induction motor should be

  flexible.
  stiff.
  any of these.
  hollow.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The rotor of a 3 - Φ wound induction motor is provided with

  three phase winding.
  single phase winding.
  heavy short-circuited end rings.
  heavy copper or aluminium bars placed in rotor slots.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a 3 - Φ wound rotor induction motor the short circuit gear is used to short circuit the

  stator phases of the motor.
  starting resistance in the starter.
  rotor at slip rings.
None of these

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Electrical Machines
Slip rings of an induction motors are made of

  aluminium.
  phosphor bronze.
  carbon.
  stainless steel.

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Electrical Machines
Which type of bearing is provided in small induction motors to support the rotor shaft?

  Ball bearings.
None of these
  Cast iron bearings.
  Bush bearings.

ANSWER DOWNLOAD EXAMIANS APP
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