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Single Phase Motors

Single Phase Motors
The speed of a universal motor is generally reduced by using

Brakes
V-belts
Chains
Gear trains

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Single Phase Motors
The direction of split phase induction motor can be reversed by interchanging the connections of supply of ________

Rotor winding
Both main and starting winding
None of the listed here
Either main or starting winding

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Single Phase Motors
At starting, the line current of a capacitor start induction motor is ______ the normal full load current.

4 to 5 times
7 to 8 times
Equal to
8 to 10 times

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Single Phase Motors
A 4-pole , 50 Hz single phase induction motor is running with a slip of 3.4%. The speed of the motor is

1279 rpm
1120 rpm
1540 rpm
1449 rpm

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Single Phase Motors
The repulsion start induction run motor is used because of

minimum cost
good power factor
high starting torque
high efficiency

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Single Phase Motors
A vaccum cleaner employs _______motor.

Single phase series motor
Capacitor start
Shaded pole motor
Resistance split phase

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