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Electrical Machines
Series booster is a
permanent magnet DC generator.
separately excited DC generator.
series wound DC generator.
shunt wound DC generator.
permanent magnet DC generator.
separately excited DC generator.
series wound DC generator.
shunt wound DC generator.
Answer
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Related Question
Electrical Machines
A series motor is efficiently suitable for
none of these.
constant speed operation.
high starting torque operation.
low starting torque operation.
none of these.
constant speed operation.
high starting torque operation.
low starting torque operation.
Answer
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Electrical Machines
The noise resulting from vibrations of lamination set by magnetic forces, is termed as
boo.
hum.
zoom.
magnetostriction.
boo.
hum.
zoom.
magnetostriction.
Answer
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Electrical Machines
Larger values of air flux density is taken while designing IM for
larger bore diameter.
larger output.
both.
none.
larger bore diameter.
larger output.
both.
none.
Answer
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Electrical Machines
In a DC Shunt Motor if the load current increases keeping the terminal voltage constant, then flux will
any of the above.
decrease.
remain constant.
increase.
any of the above.
decrease.
remain constant.
increase.
Answer
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Electrical Machines
In a synchronous machine, if the field flux axis is ahead of the armature field axis in the direction of rotation, the machine operating is
synchronous motor.
asynchronous generator.
synchronous generator.
asynchronous motor.
synchronous motor.
asynchronous generator.
synchronous generator.
asynchronous motor.
Answer
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