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Single Phase Motors

Single Phase Motors
If the single phase motor runs hot the probable cause cannot be

Low voltage
High voltage
Shorted stator coils
Blown fuse

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Single Phase Motors
In a split phase induction motor, the two stator windings

Are mutually displaced by 90° electrical
Have equal R/XL ratio
Draw only the in phase currents
Draw equal current

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Single Phase Motors
Reluctance motors are

None of the listed here
Either of the listed
Doubly excited
Singly excited

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Single Phase Motors
Which of the following single-phase motors has relatively poor starting torque ?

Capacitor motor
All single phase motors have zero starting torque
Universal motor
Repulsion motor

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

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

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

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

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MORE MCQ ON Single Phase Motors

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