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Single Phase Motors

Single Phase Motors
A shaded pole motor can be used for

Any of the listed here
Hair dryers
Toys
Circulators

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

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

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Single Phase Motors
Which of the following applications always have some load whenever switched on?

Piston drills
Vaccum cleaners
Fan motors
All of the listed here

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Single Phase Motors
Reluctance motors are

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

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Single Phase Motors
In repulsion motor, maximum torque is developed when

brush axis coincides with the field axis
None of these
brush axis is at 90° electrical to the field axis
brush axis is at 45° electrical to the field axis

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Single Phase Motors
Torque developed by a single phase induction motor at starting is

Pulsating
Uniform
None of the listed here
Nil

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