DC Generators In a practical dc generator, mechanical efficiency is More than electrical efficiency Less than electrical efficiency None of the listed here Equal to electrical efficiency More than electrical efficiency Less than electrical efficiency None of the listed here Equal to electrical efficiency ANSWER DOWNLOAD EXAMIANS APP
DC Generators In D.C. generators, current to the external circuit from armature is given through Commutator Slip rings Solid connection None of above Commutator Slip rings Solid connection None of above ANSWER DOWNLOAD EXAMIANS APP
DC Generators The coupling field between electrical and mechanical systems of a dc machine is ______ Electric field Magnetic field Both electrical and magnetic fields None of the listed here Electric field Magnetic field Both electrical and magnetic fields None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature reaction in a dc generator can be increased by increasing the Armature current None of the listed here Field current Data is insufficient Armature current None of the listed here Field current Data is insufficient ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature of a dc machine is made of ______ Wrought iron Silocon steel Soft iron Cast steel Wrought iron Silocon steel Soft iron Cast steel ANSWER DOWNLOAD EXAMIANS APP
DC Generators When two D.C. series generators are running in parallel, an equalizer bar is used To reduce the combined effect of armature reaction of both machines To increase the speed and hence generated e.m.f. To increase the series flux So that two similar machines will pass approximately equal currents to the load To reduce the combined effect of armature reaction of both machines To increase the speed and hence generated e.m.f. To increase the series flux So that two similar machines will pass approximately equal currents to the load ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS