Category: Single Phase Induction Motors

A. voltage rating
B. dielectric medium
C. polarity marking
D. definite value

A. It requires more maintenance of commutator and other mechanical devices
B. It makes quite a bit of noise on starting
C. In fractional horse power motors, it has replaced the capacitor motors
D. It is not easily reversed

A. varying field flux with tapped field windings
B. connecting rheostat in series
C. applying variable voltage by means of silicon controlled rectifier
D. applying variable voltage by means of variable auto-transformer
E. all of the above methods

A. 100 to 150 W
B. 40 to 75 W
C. 10 to 30 W
D. 5 to 10 W

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

A. high inductance of field and armature circuits
B. induced current in rotor due to variations of flux
C. fine copper wire winding
D. none of the above

A. Split motor
B. Shaded-pole motor
C. Reluctance motor
D. None of these

A. spark excessively
B. have poor efficiency
C. have poor power factor
D. all of the above

A. Split phase motor
B. Universal motor
C. Hysteresis motor
D. Shaded pole motor

A. centrifugal switch
B. capacitor
C. commutator
D. all of the above