A. toys
B. hair dryers
C. circulators
D. any of the above
Related Mcqs:
- In case of a shaded pole motor the direction of rotation of the motor is__________?
A. from main pole to shaded pole
B. from shaded pole to main pole
C. either of the above depending on voltage
D. either of the above depending on power factor - In a shaded pole motor, the shading coil usually consist of___________?
A. a single turn of heavy wire which is in parallel with running winding
B. a single turn of heavy copper wire which is short-circuited and carries only induced current
C. a multilayer fine gauge copper wire in parallel with running winding
D. none of the above - In a shaded pole single-phase motor, the revolving field is produced by the use of_________?
A. inductor
B. capacitor
C. resistor
D. shading coils - Locked rotor current of a shaded pole motor is____________?
A. equal to full load current
B. less than full load current
C. slightly more than full load current
D. several times the full load current - The shaded pole motor is used for__________?
A. high starting torque
B. low starting torque
C. medium starting torque
D. very high starting torque - A shaded pole motor does not possess___________?
A. centrifugal switch
B. capacitor
C. commutator
D. all of the above - The range of efficiency for shaded pole motors is______________?
A. 95% to 99%
B. 80% to 90%
C. 50% to 75%
D. 5% to 35% - A.C. series motor as compared to D.C. series motor has__________?
A. smaller brush width
B. less number of field turns
C. more number of armature turns
D. less air gap
E. all of the above - Two-value capacitor motor finds increased application as compressor motor in small home air-conditioners because_____________?
A. it is comparatively cheaper
B. it has almost non-destructible capacitor
C. it has low starting as well as running currents at relatively high power factor
D. it is quiet in operation - In case of a reluctance motor, when the load is increased so that it cannot maintain synchronous speed the motor will_____________?
A. become unstable
B. draw excessive armature current and may burn out
C. fall out of synchronism and come to stand still
D. run as induction motor
