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Electrical Machines
Rotating part of DC motor is known as
Starter.
Carbone brush.
Armature.
Pole.
Starter.
Carbone brush.
Armature.
Pole.
Answer
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Related Question
Electrical Machines
For a fault at the terminal of a synchronous generator, the fault current is maximum for a
3 - phase to ground fault.
line to line fault.
line to ground fault.
3 - phase fault.
3 - phase to ground fault.
line to line fault.
line to ground fault.
3 - phase fault.
Answer
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Electrical Machines
Due to magnetic saturation, the flux per pole in a DC machine without brush shift
decreases in generators and increases in motor with load.
increases in generators but decreases in motor with load.
decreases in both generators and the motors with load.
increases in both the generators and the motors with load.
decreases in generators and increases in motor with load.
increases in generators but decreases in motor with load.
decreases in both generators and the motors with load.
increases in both the generators and the motors with load.
Answer
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Electrical Machines
In a transformer, hysteresis and eddy current losses depend upon
both 2 and 3
maximum flux density
load current
supply frequency
both 2 and 3
maximum flux density
load current
supply frequency
Answer
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Electrical Machines
In a DC compound motor the field regulator is provided to
limit the armature current.
demagnetize the field partially.
control the field flux.
control the armature flux.
limit the armature current.
demagnetize the field partially.
control the field flux.
control the armature flux.
Answer
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Electrical Machines
Stray losses in transformer occurs in
winding conductors and steel structures of transformer.
transformer insulating oil.
steel core.
paper insulation in transformers.
winding conductors and steel structures of transformer.
transformer insulating oil.
steel core.
paper insulation in transformers.
Answer
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