Flashing the field of D.C. generator means:______________?

Related Mcqs:

While applying Fleming’s right-hand rule to And the direction of induced e.m.f., the thumb points towards___________?

A. direction of induced e.m.f. B. direction of flux C. direction of motion of the conductor if forefinger points in the direction of generated e.m.f. D. direction of motion of conductor, if forefinger points along the lines of flux...

If a D.C. generator fails to build up the probable cause could not be_____________?

A. imperfect brush contact B. field resistance less than the critical resistance C. no residual magnetism in the generator D. faulty shunt connections tending to reduce the residual magnetism...

The following constitute short-circuit in the armature winding.

A. Insulation failure between two commutator bars B. Insulation failure between two turns of a coil C. Two of more turns of the same coil getting grounded D. All of the above...

Which of the following components of a D.C, generator plays vital role for providing direct current of a D.C. generator ?

A. Dummy coils B. Commutator C. Eye bolt D. Equilizer rings...

In D.C. generators the polarity of the interpoles_____________?

A. is the same as that of the main pole ahead B. is the same as that of the immediately preceding pole C. is opposite to that of the main pole ahead D. is neutral as these poles do not play part in generating e.m.f....