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Objective Questions
ITI
Electrician
Electrician Set-1
DC Generators
31

DC Generators MCQ - Electrician (Set-1) with Answers

31) The function of an equalizer ring is :

to avoid unequal distribution of current at the brushes

to help in reducing sparking

both the above

none of the above

Answer is:

both the above

DC Generators MCQ - Electrician (Set-1) with Answers

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Related DC Generators MCQ - Electrician (Set-1) with Answers

32) The carbon brushes of D.C. machines become shorter by wearing out during the running time of the machine. At which length do you have to change the brushes ?

1/2 of the original length

1/3 of the original length

3/4 of the original length

2/3 of the original length

Answer is:

2/3 of the original length

33) A 2 kW, 200 V, D.C. generator will supply a load current of :

2 amps

4 amps

10 amps

20 amps

Answer is:

10 amps

34) The essential condition for stable parallel operating of two D.C. generators having similar characteristics is that, they should have

same kilowatt output ratings

drooping voltage characteristics

same percentage regulation

same no load and full load speed

Answer is:

drooping voltage characteristics

35) D.C. generators are connected to or disconnected from the busbar only under the floating condition. This is done to avoid

burning of switch contact

sudden loading of the prime mover

mechanical jerk to the shaft

all of the above

Answer is:

all of the above

DC Generators MCQ - Electrician (Set-1) with Answers

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