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

Related MCQs

• If a self excited D.C. generator after being installed, fails to build up on its first trial run, the first thing to do is to
• Two generators A and B have 6-poles each. Generator A has wave wound armature while generator B has lap wound armature. The ratio of the induced e.m.f. is generator A and B will be
• Following D.C. generator will be in a position to build up without any residual magnetism in the poles
• A separately excited generator as compared to a self-excited generator
• Which of the following components of a D.C, generator plays vital role for providing direct current of a D.C. generator ?
• The e.m.f. generated by a shunt wound D.C. generator isE. Now while pole flux remains constant, if the speed of the generator is doubled, the e.m.f. generated will be
• Which of the following D.C. generators will be in a position to build up without any residual magnetism in the poles ?
• The armature of D.C. generator is laminated to
• The field coils of D.C. generator are usually made of
• 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. ?