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Single Phase Motors

Single Phase Motors
In a hysteresis motor, the rotor must have

None of the listed here
Retentivity
Susceptibility
Resistivity

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Single Phase Motors
Which of the following motor can be used for unity power factor?

Capacitor run motor
Scharge motor
Shaded pole motor
Hysteresis motor

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

High voltage
Low voltage
Blown fuse
Shorted stator coils

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Single Phase Motors
The single phase shaded pole motor has _____

Wound rotor
High power factor
Squirrel cage motor
High starting torque

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Single Phase Motors
If the capacitor of a single-phase motor is short-circuited

the motor will not start
the motor will run
the motor will run in reverse direction
the motor will run in the same direction at reduced r.p.m.

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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?

Hysteresis
Reluctance
Universal
Shaded pole

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