A universal motor can run on___________?
A. A.C. only
B. D.C. only
C. either A.C. or D.C.
D. none of the above
A universal motor can run on___________? Read More »
Single Phase Induction Motors A. A.C. only
B. D.C. only
C. either A.C. or D.C.
D. none of the above
A universal motor can run on___________? Read More »
Single Phase Induction Motors A. Shaded pole motor
B. Hysteresis motor
C. Two value capacitor motor
D. Universal motor
Which of the following motors is preferred for tape-recorders ? Read More »
Single Phase Induction Motors A. inherently self-starting with high torque
B. inherently self-starting with low torque
C. inherently non-self-starting with low torque
D. inherently non-self-starting with high torque
A single-phase induction motor is__________? Read More »
Single Phase Induction Motors A. Electric shavers
B. Refrigerators
C. Signalling and timing devices
D. Lifts and hoists
For which of the applications a reluctance motor is preferred ? Read More »
Single Phase Induction Motors A. universal motor
B. D.C. shunt motor
C. single-phase capacitor run motor
D. 3-phase synchronous motor
The motor used on small lathes is usually_________? Read More »
Single Phase Induction Motors A. hysteresis loss
B. magnetisation of rotor
C. eddy current loss
D. electromagnetic induction
A hysteresis motor works on the principle of__________? Read More »
Single Phase Induction Motors A. D.C. shunt motor
B. Schrage motor
C. Repulsion start and induction run motor
D. Universal motor
Which of the following motor will give the highest starting torque ? Read More »
Single Phase Induction Motors A. lagging
B. always leading
C. unity
D. unity to 0.8 leading
The power factor of a single-phase induction motor is usually? Read More »
Single Phase Induction Motors A. toys
B. hair dryers
C. circulators
D. any of the above
A shaded pole motor can be used for_____________? Read More »
Single Phase Induction Motors A. torque will increase
B. the motor will consume less power
C. motor will run in reverse direction
D. motor will continue to run in same direction