DC MOTOR - Quiz

1) Which speed control method is used in food mixture motors?

Voltage control method Field diverter control method Armature diverter method Series field tapping method

2) Which speed control system provides a smooth variation of speed from zero to above normal?

Field control Armature control Field diverter control Ward-Leonard system control

3) What is the purpose of tapes in winding?

Insulate slots Bind the coils Wrap the conductor Insulate exposed conductors

4) Which type of DC armature winding the front pitch (Y_F) is greater than back pitch (Y_B)?

Lap winding Wave winding Progressive winding Retrogressive winding

5) What reduces the cross sectional area of core material for VA rating?

Dynamo sheet Low alloy sheet High alloy sheet Normal steel sheet