Which of the following motors has highest starting torque ?

A. Repulsion motor
B. Shaped pole motor
C. Capacitor-start motor
D. Split-phase motor

Which of the following motors can be run on AC. as well as D.C. supply ?

A. Universal motor
B. Repulsion motor
C. Synchronous motor
D. Reluctance motor

In A.C. series motor compensating winding is employed to_____________?

A. Reduce the effects of armature reaction
B. Increase the torque
C. Reduce sparking at the brushes
D. None of the above

In a two value capacitor motor, the capacitor used for running purposes is_______________?

A. Air capacitor
B. Paper spaced oil filled type
C. Ceramic type
D. A.c. electrolytic type

In split-phase motor auxiliary winding is of___________?

A. Thick wire placed at the bottom of the slots
B. Thick wire placed at the top of the slots
C. Thin wire placed at the top of the slots
D. Thin wire placed at the bottom of the slots

Single phase induction motor usually operates on__________?

A. 0.6 power factor lagging
B. 0.8 power factor lagging
C. 0.8 power factor leading
D. Unity power factor

Which of the following motors will operate at high power factor ?

A. Shaped pole motor
B. Split phase motor
C. Capacitor start motor
D. Capacitor run motor

Which of the following single-phase motors is suitable for timing and control purposes ?

A. Reluctance motor
B. Series motor
C. Repulsion motor
D. Universal motor

A schrage motor can run on___________?

A. Zero slip
B. Negative slip
C. Positive slip
D. All of the above

A universal motor can run on___________?

A. c. only
B. D.c. only
C. Either a.c. or d.c.
D. None of the above