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Electrical Machines
Dynamic braking can be used for
All of these
compound motors.
series motors.
shunt motors.
All of these
compound motors.
series motors.
shunt motors.
Answer
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Related Question
Electrical Machines
For a transformer to be tested at full load conditions but consuming only losses from the main, we do
back to back test
load test
OC and SC tests
None of these
back to back test
load test
OC and SC tests
None of these
Answer
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Electrical Machines
In case of a DC Shunt motor if the load is decreased to some extent, what will happen to its speed?
The speed will increase in proportion to reduction in load.
The speed will increase gradually.
The speed will remains almost constant.
The speed will increase abruptly.
The speed will increase in proportion to reduction in load.
The speed will increase gradually.
The speed will remains almost constant.
The speed will increase abruptly.
Answer
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Electrical Machines
Which of the following relation is correct?
None of these
Xd = Xq.
Xd > Xq.
Xd < Xq.
None of these
Xd = Xq.
Xd > Xq.
Xd < Xq.
Answer
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Electrical Machines
Which of the DC Motor use flywheel?
Shunt motor.
Series motor.
Cumulatively compound motor.
Differently compared motor.
Shunt motor.
Series motor.
Cumulatively compound motor.
Differently compared motor.
Answer
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Electrical Machines
Two mechanically coupled alternators deliver power at 50 Hz and 60 Hz respectively. Highest speed of alternator is
3000 rpm.
500 rpm.
3600 rpm.
600 rpm.
3000 rpm.
500 rpm.
3600 rpm.
600 rpm.
Answer
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