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Single Phase Motors
Single Phase Motors
The wattage rating for a ceiling fan motor will be in the range
200 to 250 W
250 to 500 W
50 to 150 W
10 to 20 W
200 to 250 W
250 to 500 W
50 to 150 W
10 to 20 W
Answer
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Single Phase Motors
The direction of rotation of universal motor can be reversed the by reversing the flow of current through
Field winding
None of these
Either armature winding or field winding
Armature winding
Field winding
None of these
Either armature winding or field winding
Armature winding
Answer
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Single Phase Motors
Which of the following motors is used for unity power factor ?
Universal motor
Schrage motor
Reluctance motor
Hysteresis motor
Universal motor
Schrage motor
Reluctance motor
Hysteresis motor
Answer
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Single Phase Motors
Which of the following motors can be used for unity power factor ?
Capacitor run motor
Hysteresis motor
Shaded pole motor
Schrage motor
Capacitor run motor
Hysteresis motor
Shaded pole motor
Schrage motor
Answer
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Single Phase Motors
In repulsion motor, maximum torque is developed when
brush axis is at 45° electrical to the field axis
brush axis coincides with the field axis
brush axis is at 90° electrical to the field axis
None of these
brush axis is at 45° electrical to the field axis
brush axis coincides with the field axis
brush axis is at 90° electrical to the field axis
None of these
Answer
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