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DC Generators

DC Generators
The commutator of a dc generator acts as

An amplifier
None of the listed here
A load
A rectifier

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DC Generators
The essential condition for parallel operation of two D.C. generators is that they have

The same drooping voltage characteristics
Same percentage regulation
Same kW rating
The same operation r.p.m.

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DC Generators
In a wave winding, the commutator pitch is approximately equal to

Thrice the pole pitch
Twice the pole pitch
Pole pitch
None of the listed here

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DC Generators
In a commutator

Mica and copper are equally hard
Copper is harder than mica
Mica is harder than copper
None of the listed here

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DC Generators
Which of the following components of a D.C, generator plays vital role for providing direct current of a D.C. generator?

Commutator
Eye bolt
Dummy coils
Equalizer rings

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DC Generators
The terminal voltage of a series generator is 150 V when the load current is 5 A. If the load current is increased to 10 A, the terminal voltage will be

None of these
Greater than 150 V
Less than 150 V
150 V

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