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Single Phase Motors

Single Phase Motors
The single phase series motor can operate on

None of the listed here
Both AC and DC
DC only
AC only

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Single Phase Motors
Most of the fractional horsepower motors have either

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

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Single Phase Motors
The wattage rating for a ceiling fan motor will be in the range

50 to 150 W
250 to 500 W
10 to 20 W
200 to 250 W

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Single Phase Motors
For the same rating, the size of a single phase induction motor is about _______ that of the corresponding 3-phase induction motor.

3 times
The same as
0.33 times
1.5 times

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Single Phase Motors
The resistance split phase induction motors are the most popular single phase motors because of ______

Their low cost
Their high starting torque
None of the listed here
The long starting period

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Single Phase Motors
In a hysteresis motor, the rotor must have

None of the listed here
Retentivity
Susceptibility
Resistivity

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MORE MCQ ON Single Phase Motors

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