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DC Generators

DC Generators
The yoke of a dc machine carries ______ pole flux.

None of the listed here
One-half of
Two times the
Three times

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DC Generators
For the same rating, a dc machine has_______ an ac machines.

None of the listed here
Less weight than
The same weight as
More weight than

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DC Generators
The O. C. C. of a dc generator

None of the listed here
Is similar for all types of generators
May be same or different
Is different for different generators

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DC Generators
The overall efficiency of a dc generator is maximum when its variable loss is equal to

Mechanical loss
Stray loss
Iron loss
Constant loss

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DC Generators
The number of armature parallel paths in a two-pole D.C. generator having duplex lap winding is

6
2
8
4

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DC Generators
The current in armature conductors of a dc machine is ______

Ac
Pure dc
Pure dc plus pulsating dc
Pulsating dc

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