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Single Phase Motors
Which of the following application make use of a universal motor?
Lathe machines
Oil expeller
Floor polishing machine
Portable tools
Lathe machines
Oil expeller
Floor polishing machine
Portable tools
Answer
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Related Question
Single Phase Motors
Locked rotor current of a shaded pole motor is
slightly more than full load current
less than full load current
several times the full load current
equal to full load current
slightly more than full load current
less than full load current
several times the full load current
equal to full load current
Answer
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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
either of the above depending on power factor
from main pole to shaded pole
from shaded pole to main pole
either of the above depending on voltage
either of the above depending on power factor
from main pole to shaded pole
from shaded pole to main pole
Answer
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Single Phase Motors
Which of the following motors is inherently self starting?
Split motor
Reluctance motor
Shaded pole motor
None of the listed here
Split motor
Reluctance motor
Shaded pole motor
None of the listed here
Answer
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Single Phase Motors
In case of a reluctance motor, when the load is increased so that it cannot maintain synchronous speed the motor will
Become unstable
Fall out of synchronism and come to stand still
Draw excessive armature current and may burn out
Run as induction motor
Become unstable
Fall out of synchronism and come to stand still
Draw excessive armature current and may burn out
Run as induction motor
Answer
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Single Phase Motors
A repulsion motor is equipped with
both (A) and (B)
slip rings
None of these
commutator
both (A) and (B)
slip rings
None of these
commutator
Answer
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