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Single Phase Motors

Single Phase Motors
The speed of a universal motor is generally reduced by using

V-belts
Brakes
Chains
Gear trains

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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?

Universal
Shaded pole
Reluctance
Hysteresis

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Single Phase Motors
A capacitor-start single phase induction motor is switched on to supply with its capa-citor replaced by an inductor of equivalent reactance value. It will

start and run at rated speed
start and then stop
start and run slowly
not start at all

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

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

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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
In case of a shaded pole motor the direction of rotation of the motor is

either of the above depending on voltage
from main pole to shaded pole
either of the above depending on power factor
from shaded pole to main pole

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