ELECTRICAL MACHINES QUIZ

 exactly opposite

 either of these

 same

None of these

 Open fuse or circuit breaker.

 Draw too much current.

  Develop excessive speed and damage itself.

 Produce sparking at brushes.

 field current on X-axis and power factor on Y-axis

 field current on Y-axis and armature current on X-axis

 field current on X-axis and armature current on Y-axis

 field current on Y-axis and power factor on X-axis

 15.28 Nm

 15.6 Nm

 Zero

 16.55 Nm

 improve the starting torque.

 reduce the harmonics.

 start the motor.

 improve the power factor.

  1 / V.

  V2.

  V.

 1 / V2.

 0.5Kw

 2KW

 3KW

 1.5KW

 the motor will come to stop.

 the speed of motor will be reduced.

 the motor will attain dangerously high speed.

 the armature current will reduce.

 armature midway between poles.

 commutator in the inter polar axis.

 armature in the polar axis.

 commutator in the polar axis.

 Armature.

 Brush.

 Yoke.

  Commutator.