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Electrical Machines
Armature resistance control method is also called as-----------?
constant current control
constant torque control
constant power control
constant voltage control
constant current control
constant torque control
constant power control
constant voltage control
Answer
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Related Question
Electrical Machines
The voltmeter connected across a generator reads voltage same at no load and at full load (rated). The generator is of the type
shunt generator.
short - shunt generator.
level compound.
series generator.
shunt generator.
short - shunt generator.
level compound.
series generator.
Answer
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Electrical Machines
Stray losses in transformer occurs in
transformer insulating oil.
steel core.
winding conductors and steel structures of transformer.
paper insulation in transformers.
transformer insulating oil.
steel core.
winding conductors and steel structures of transformer.
paper insulation in transformers.
Answer
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Electrical Machines
In a three phase slip-ring induction motor, brushes are connected to
external star-connected resistors.
3 - Φ AC supply.
DC supply.
equalizing coils.
external star-connected resistors.
3 - Φ AC supply.
DC supply.
equalizing coils.
Answer
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Electrical Machines
In DC machine shape of main field flux distribution is?
triangular
flat tapped or trapezoidal
peaky in nature
saddle shape
triangular
flat tapped or trapezoidal
peaky in nature
saddle shape
Answer
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Electrical Machines
In speed control of DC shunt motor by varying field flux, what may be the value of field regulator?
2 ohm.
0.2 ohm
100 ohm
10 ohm
2 ohm.
0.2 ohm
100 ohm
10 ohm
Answer
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