Single phase induction motors

Split phase motor

Universal motor

Hysteresis motor

Shaded pole motor

Split motor

Shaded-pole motor

Reluctance motor

None of these

End play

Air gap

Insulation in rotor

Balancing of rotor

high inductance of field and armature circuits

induced current in rotor due to variations of flux

series motor is connected to A.C. supply, the power factor will be low because of A. high inductance of field and armature circuits B. induced current in rotor due to variations of flux C. fine copper wire winding

none of the above

D.C. only

D.

only B.

none of the above

brush axis is at 45° electrical to the field axis

brush axis coincides with the field axis

brush axis is at 90° electrical to the field axis

none of the above

200 to 250 W

250 to 500 W

50 to 150 W

10 to 20 W

D.C. shunt motor

Schrage motor

shunt motor B. Schrage motor C. Repulsion start and induction run motor

Universal motor

It is similar to reluctance motor

It is basically an induction motor and not a synchronous one

So far as its basic working principle is concerned, it is similar to shaded pole motor

the air-gap between rotor and salient poles is non- uniform

it is comparatively cheaper

it has almost non-destructible capacitor

it has low starting as well as running currents at relatively high power factor

it is quiet in operation