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Single Phase Motors

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

1449 rpm
1540 rpm
1120 rpm
1279 rpm

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Single Phase Motors
A Reluctance motor

Is constant speed motor
Need no dc excitation
Is self starting
All of the listed here

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Single Phase Motors
The washing machine generally employs ______ motor.

Resistance split phase
Hysteresis
Single phase series motor
Shaded pole

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Single Phase Motors
The motor used on small lathes is usually

Dc shunt motor
Universal motor
3-phase synchronous motor
Single phase capacitor run motor

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Single Phase Motors
The resistance split phase induction motor has ______ starting torque .

Very low
Moderate
High
None of the listed here

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Single Phase Motors
Most of the fractional horsepower motors have either

hard and annealed bearings
ball or roller bearings
plain or sleeve bearings
soft and porous bearings

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MORE MCQ ON Single Phase Motors

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