The rotor slots, in an induction motor, are usually not quite parallel to the shaft because it
A. improves the efficiency
B. helps the rotor teeth to remain under the stator teeth
C. helps in reducing the tendency of the rotor teeth to remain under the stator teeth
D. improves the power factor
Answer: Option C
This Question Belongs to Electrical Engineering >> Single Phase Induction Motors
A. the starting winding is connected through a centrifugal switch
B. the running winding is connected through a centrifugal switch
C. both starting and running windings are connected through a centrifugal switch
D. centrifugal switch is used to control supply voltage
In a ceilingfan employing capacitor run motor
A. secondary winding surrounds the primary winding
B. primary winding surrounds the secondary winding
C. both are usual arrangements
D. none of the above
Which type of load is offered by cranes and hoists ?
A. Gradually varying load
B. Non-reversing, no-load start
C. Reversing, light start
D. Reversing, heavy start
Which of the following motors is preferred for tape-recorders?
A. Shaded pole motor
B. Hysteresis motor
C. Two value capacitor motor
D. Universal motor
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