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DC Generators

DC Generators
The critical resistance of the D.C. generator is the resistance of

Armature
Load
Brushes
Field

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DC Generators
Due to armature reaction, the main pole flux of a dc generator is

Weakened as well as distorted
Weakend only
None of the listed here
Distorted only

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DC Generators
The size of a dc generator can be reduced by using ______

High resistance winding material
Iron commutator
Lap winding
Magnetic material of high permeability

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DC Generators
In a D.C. generator the critical resistance refers to the resistance of

Brushes
Field
Load
Armature

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DC Generators
The open circuit voltage of a compound generator is 250 V. At full load the terminal voltage

May be greater or less than 250 V
Will be less than 250 V
None of these
Will always be 250 V

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DC Generators
With a D.C. generator which of the following regulation is preferred?

100% regulation
1% regulation
Infinite regulation
50% regulation

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