DC Generators In a D.C. generator in order to reduce sparking at brushes, the self-induced e.m.f. in the coil is neutralized by all of the following except Dummy coils Compensating winding Shifting of axis of brushes Interpoles Dummy coils Compensating winding Shifting of axis of brushes Interpoles ANSWER DOWNLOAD EXAMIANS APP
DC Generators The essential condition for parallel operation of two D.C. generators is that they have Same kW rating The same drooping voltage characteristics Same percentage regulation The same operation r.p.m. Same kW rating The same drooping voltage characteristics Same percentage regulation The same operation r.p.m. ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following could be lamina proximately the thickness of laminations of a D.C. machine? 0.05 mm 5 m 0.005 mm 0.5 m 0.05 mm 5 m 0.005 mm 0.5 m ANSWER DOWNLOAD EXAMIANS APP
DC Generators The rapid wear of brushes takes place due to Rough commutator bars Excessive spring pressure All of these Abrasion from dust Rough commutator bars Excessive spring pressure All of these Abrasion from dust ANSWER DOWNLOAD EXAMIANS APP
DC Generators The number of armature parallel paths in a two-pole D.C. generator having duplex lap winding is 4 8 2 6 4 8 2 6 ANSWER DOWNLOAD EXAMIANS APP
DC Generators For a D.C. machines laboratory following type of D.C. supply will be suitable Induction motor D.C. generator set Synchronous motor D.C. generator set Rotary converter Mercury are rectifier Induction motor D.C. generator set Synchronous motor D.C. generator set Rotary converter Mercury are rectifier ANSWER DOWNLOAD EXAMIANS APP
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