Computer Programming MCQs — Test 18
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Question 1
In D.C. generators, the cause of rapid brush wear may be___________?
Question 2
For a D.C. generator when the number of poles and the number of armature conductors is fixed, then which winding will give the higher e.m.f___________ ?
Question 3
Copper brushes in D.C. machine are used_____________?
Question 4
In case of D.C. machines, mechanical losses are primary function of____________?
Question 5
Fleming’s right-hand rule regarding direction of induced e.m.f., correlates__________?
Question 6
In D.C. generators the pole shoes are fastened to the pole core by_____________?
Question 7
While applying Fleming’s right-hand rule to And the direction of induced e.m.f., the thumb points towards___________?
Question 8
According to Fleming’s right-hand rule for finding the direction of induced e.m.f., when middle finger points in the direction of induced e.m.f., forefinger will point in the direction of____________?
Question 9
In a commutator_____________?
Question 10
The field coils of D.C. generator are usually made of_____________?