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DC Generators

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

Brushes
Armature
Load
Field

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DC Generators
The yoke of a dc machine is made of

Soft iron
Silicon steel
Cast steel
Aluminum

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DC Generators
In a practical dc generator, mechanical efficiency is

More than electrical efficiency
Less than electrical efficiency
None of the listed here
Equal to electrical efficiency

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DC Generators
The no load voltage of a generator is 240 V and rated load voltage is 220 V. The voltage regulation of the generator is

2.8%
4.5%
11.3%
9.1%

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DC Generators
The dc generator that has poorest voltage is

Shunt generator
Over compounded generator
Flat compounded generator
Series generator

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DC Generators
The purpose of providing dummy coils in a generator is

To reduce eddy current losses
To enhance flux density
To provide mechanical balance for the rotor
To amplify voltage

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MORE MCQ ON DC Generators

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