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Electrician
Electrician Set-2
DC Generator
21

DC Generator MCQ with Answers

21) Why the terminal voltage decreases if load increases in DC shunt generator?

Because of armature reaction effect

Due to increased in armature resistance

Because of brush voltage drop decreases

Due to increased in shunt field inductance

Answer is:

Because of armature reaction effect

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Related DC Generator MCQ with Answers

22) Which type of DC generator is used for long distance distribution lines?

Shunt generator

Series generator

Differential compound generator

Cumulative compound generator

Answer is:

Cumulative compound generator

23) Which method is used to improve the insulation resistance in DC generator?

Replacing the brushes frequently

Heating the machine by running periodically

Cleaning the commutator segments regularly

Blowing hot air in to the machine during maintenance

Answer is:

Blowing hot air in to the machine during maintenance

24) Which type of D.C Generator works in absence of residual magnetism?

Shunt generator

Series generator

Compound generator

Separately excited generator

Answer is:

Separately excited generator

25) Which type of D.C generator is used for arc welding?

Shunt generator

Series generator

Differential compound generator

Cumulative compound generator

Answer is:

Differential compound generator

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