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

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

51) In a DC generator, sparking at the brush position may be:

Answer is:

Both 1) due to over commutation and 2) due to under commutation

52) In a DC Generator, if the field circuit resistance is more than the field critical resistance, then the :

Answer is:

generator will not build up the voltage

53) Brush tension in a DC generator plays very important role in its performance. Excessive brush tension may

Answer is:

overheat the commutator and wear out the surface

54) The purpose of lamination between core is used in armature is to :

Answer is:

reduce the eddy current loss

55) The load characteristic of separated excited generator is between :

Answer is:

load current and terminal voltage

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