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Single Phase Motors

Single Phase Motors
In a capacitor start motor, the phase displacement between starting and running winding can be nearly

10°
60°
30°
90°

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

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

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Single Phase Motors
If starting winding of a single-phase induction motor is left in the circuit, it will

draw excessive current and overheat
spark at light loads
run faster
run slower

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Single Phase Motors
If a DC series motor is operated on AC supply, it will

Have poor efficiency
Have poor power factor
All of the listed here
Spark excessively

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Single Phase Motors
The speed/load characteristics of a universal motor is same as that of

AC motor
DC series motor
DC shunt motor
None of the listed here

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Single Phase Motors
The single phase shaded pole motor has _____

Squirrel cage motor
Wound rotor
High power factor
High starting torque

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