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Single Phase Motors
A repulsion motor is equipped with
both (A) and (B)
slip rings
commutator
None of these
both (A) and (B)
slip rings
commutator
None of these
Answer
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Related Question
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 then stop
not start at all
start and run at rated speed
start and run slowly
start and then stop
not start at all
start and run at rated speed
start and run slowly
Answer
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Single Phase Motors
In a universal motor, the most common cause of brush sparking is
high commutator mica
shorted field winding?
all of these
open armature winding
high commutator mica
shorted field winding?
all of these
open armature winding
Answer
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Single Phase Motors
A capacitor selected for capacitor run motor should be rated for
Peak voltage
Rms voltage
Average voltage
None of the listed here
Peak voltage
Rms voltage
Average voltage
None of the listed here
Answer
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Single Phase Motors
Most of the troubles of single phase induction motors are traceable to the _______
Main winding
Rotor bars
Shaft bearings
Starting switch
Main winding
Rotor bars
Shaft bearings
Starting switch
Answer
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Single Phase Motors
Reluctance motors are
Singly excited
None of the listed here
Either of the listed
Doubly excited
Singly excited
None of the listed here
Either of the listed
Doubly excited
Answer
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