Electrical Engineering : Single Phase Induction Motors QUESTIONS AND ANSWERS :: part1 : 11 to 15
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
11.In a capacitor start and run motors the function of the running capacitor in series with the auxiliary winding is to |
improve power factor |
increase overload capacity |
reduce fluctuations in torque |
to improve torque |
12.In a shaded pole single-phase motor, the revolving field is produced by the use of |
inductor |
capacitor |
resistor |
shading coils |
13.Direction of rotation of a split phase motor can be reversed by reversing the connection of |
running winding only |
starting winding only |
either (a) or (b) |
both (a) and (b) |
14.The direction of rotation of an hysteresis motor is determined by |
interchanging the supply leads |
position of shaded pole with respect to main pole |
retentivity of the rotor material |
none of these |
15.In a split phase motor |
the starting winding is connected through a centrifugal switch |
the running winding is connected through a centrifugal switch |
both starting and running windings are connected through a centrifugal switch |
centrifugal switch is used to control supply voltage |
More Single Phase Induction Motors QUESTIONS AND ANSWERS available in next pages
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