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Single Phase Motors

Single Phase Motors
A motor gets overheated due to

Overloads
All of the listed here
Dry bearings
Worn bearings

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Single Phase Motors
In repulsion motor direction of rotation of motor

is independent of brush shift
is the same as that of brush shift
is opposite to that of brush shift

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Single Phase Motors
Which of the following single phase motor is available with speed as low as one revolution per month?

Shaded pole
Hysteresis
Reluctance
Universal

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Single Phase Motors
The repulsion start induction run motor is used because of

high efficiency
minimum cost
good power factor
high starting torque

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

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

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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-parallel
Parallel
None of the listed here
Series

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