DC Generators Current versus time graph for an ideal commutation is a None of the listed here Hydrobola Straight line Parabola None of the listed here Hydrobola Straight line Parabola ANSWER DOWNLOAD EXAMIANS APP
DC Generators The terminal voltage of a D.C. shunt generator drops on load because of all of the following reasons except Armature resistance drop Armature reaction Field weakening due to armature reaction and armature Commutation Armature resistance drop Armature reaction Field weakening due to armature reaction and armature Commutation ANSWER DOWNLOAD EXAMIANS APP
DC Generators Dc machines which are subjected to abrupt changes of load are provided with Interpole windings Equalisers Copper brushes Compensating windings Interpole windings Equalisers Copper brushes Compensating windings ANSWER DOWNLOAD EXAMIANS APP
DC Generators In D.C. generators, the brushes on commutator remain in contact with conductors which Lie under North Pole Lie under interpolar region Are farthest from the poles Lie under South Pole Lie under North Pole Lie under interpolar region Are farthest from the poles Lie under South Pole ANSWER DOWNLOAD EXAMIANS APP
DC Generators Carbon brushes are used in a dc machine because _______ Contact resistance is decreased Carbon is cheap Carbon lubricates and polishes the commutator None of the listed here Contact resistance is decreased Carbon is cheap Carbon lubricates and polishes the commutator None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators A separately excited generator as compared to a self-excited generator Has exciting current independent of load current Has all above features Is amenable to better voltage control Is more stable Has exciting current independent of load current Has all above features Is amenable to better voltage control Is more stable ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS