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Single Phase Motors

Single Phase Motors
In a shaded pole motor the rotating magnetic field is produced by using

Salient poles
Shading coils
Copper windings
A capacitor

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

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

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Single Phase Motors
Which of the following motor will give the highest starting torque ?

Universal motor
Schrage motor
C. shunt motor
Repulsion start and induction run motor

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

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

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Single Phase Motors
The main winding and starting winding of a single phase induction motor are connected in _______ across the supply.

Series
None of the listed here
Parallel
Series-parallel

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Single Phase Motors
The capacitor start, capacitor run motor is used in thode applications where _____

Noisy operation is not important
Silence is important
High starting torque is required
None of the listed here

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