Electrical Machines
A DC series motor has which of the following characteristics?

 Can be started easily without load.
 Has a almost constant speed.
 Has a poor torque.
 Has its field winding consinting of thick wire and less no of turns.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In speed control of DC Series motor, speed lower than the rated speed can be obtained by

 Connecting an additional resistance in stator circuit.
 Connecting an additional resistance in the field circuit.
 Connecting an additional resistance in the armature circuit.
 Any of the above.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
DC Motor

  dc shunt motor with field weakening.
  dc series motor.
  dc shunt with armature resistance control.
  dc compound motor.

ANSWER DOWNLOAD EXAMIANS APP