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Electrical Machines
When two DC series motors are connected in parallel, the resultant speed is
zero.
less than normal speed.
normal speed.
more than normal speed.
zero.
less than normal speed.
normal speed.
more than normal speed.
Answer
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Related Question
Electrical Machines
Rotating part of DC motor is known as
Pole.
Carbone brush.
Armature.
Starter.
Pole.
Carbone brush.
Armature.
Starter.
Answer
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Electrical Machines
As compared to an induction motor, the air gap in a DC motor is
less than 50%.
more.
same.
between 50% and 90%.
less than 50%.
more.
same.
between 50% and 90%.
Answer
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Electrical Machines
In a dc machine 4 pole lap winding is used. The number of parallel paths are?
1
4
2
8
1
4
2
8
Answer
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Electrical Machines
Skewing of cage rotors offers the following advantages
locking tendency is reduced.
uniform torque.
less noise.
all of below.
locking tendency is reduced.
uniform torque.
less noise.
all of below.
Answer
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Electrical Machines
Which type of motors are used for lathes?
DC shunt motors.
Synchronous motor.
Either A or B.
Cage induction motor.
DC shunt motors.
Synchronous motor.
Either A or B.
Cage induction motor.
Answer
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