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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
short - shunt generator.
series generator.
level compound.
shunt generator.
short - shunt generator.
series generator.
level compound.
shunt generator.
Answer
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Related Question
Electrical Machines
Voltage regulation can be determined by which of the following?
Synchronous impedance method.
ZPF method.
MMf method.
All of these
Synchronous impedance method.
ZPF method.
MMf method.
All of these
Answer
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Electrical Machines
Armature reaction of an unsaturated DC machine is
magnetising.
none of above.
crossmagnetising.
demagnetising.
magnetising.
none of above.
crossmagnetising.
demagnetising.
Answer
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Electrical Machines
Regenerative braking is not found in which motor?
DC shunt.
DC compound.
Induction motor.
DC series.
DC shunt.
DC compound.
Induction motor.
DC series.
Answer
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Electrical Machines
A 400 V, 50 Hz, 30 Hp, three phase IM is drawing 50 A current at 0.8 p.f lagging. The stator and rotor copper losses are 1.5 KW and 900 W respectively. The friction and windage losses are 1050 W and core losses are 1200 W. The air gap power of the motor will be
24.11 kW.
23.06 kW.
26.21 kW.
25 kW.
24.11 kW.
23.06 kW.
26.21 kW.
25 kW.
Answer
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Electrical Machines
In DC generator, brushes are always placed along
load axis.
geometrical neutral axis.
armature axis.
magnetic neutral axis.
load axis.
geometrical neutral axis.
armature axis.
magnetic neutral axis.
Answer
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