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D.C. Generators MCQs: 124 Questions & Answers in Engineering

124 D.C. Generators MCQs in Engineering with answers & explanations. Page 3. Practice objective questions for competitive exams, interviews & self-assessment… Use the answer toggle below to show or hide all solutions, tap an option to check one question, or open a question for its own page.

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D.C. Generators MCQs: 124 Questions & Answers in Engineering

The bearings used to support the rotor shafts are generally

In D.C. generators, the cause of rapid brush wear may be

In a four-pole D.C. machine

In lap winding, the number of brushes is always

A separately excited generator as compared to a self-excited generator

In case of D.C. machines, mechanical losses are primary function of

In D.C. generators, current to the external circuit from armature is given through

Iron losses in a D.C. machine are independent of variations in

If B is the flux density, I the length of conductor and v the velocity of conductor, then induced e.m.f. is given by

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

The material for commutator brushes is generally

The insulating material used between the commutator segments is normally

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

If brushes of a D.C. generator are moved in order to bring these brushes in magnetic neutral axis, there will be

Welding generator will have

The function of pole shoes in the case of D.C. machine is

In case of D.C. machine winding, number of commutator segments is equal to

Which of the following statement about D.C. generators is false ?

In the case of lap winding resultant pitch is

The demagnetising component of armature reaction in a D.C. generator

Study tips for D.C. Generators