DC Generators – Page 5 – HI MCQ!

The rapid wear of brushes takes place due to?

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In case of a 4-pole D.C. generator provided with a two layer lap winding with sixteen coils, the pole pitch will be?

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The bearings used to support the rotor shafts are generally?

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The insulating material used between the commutator segments is normally?

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In a D.C. generator. If p be the number of poles and N be the r.p.m, of rotor, then the frequency of magnetic reversals will be?

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The purpose of providing dummy coils in a generator is?

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Which of the following generating machine will offer constant voltage on all loads?

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In D.C. generators, the brushes on commutator remain in contact with conductors which?

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The essential condition for parallel operation of two D.C. generators is that they have?

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For the parallel operation of two or more DC compound generators, we should ensure that?

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