DC Generators In a lap winding, the number of the brushes required is equal to Number of poles Number of pairs of poles None of the listed here Commutator pitch Number of poles Number of pairs of poles None of the listed here Commutator pitch ANSWER DOWNLOAD EXAMIANS APP
DC Generators With a D.C. generator which of the following regulation is preferred? 1% regulation 100% regulation Infinite regulation 50% regulation 1% regulation 100% regulation Infinite regulation 50% regulation ANSWER DOWNLOAD EXAMIANS APP
DC Generators The insulating material used between the commutator segments is normally Graphite Paper Mica Insulating varnish Graphite Paper Mica Insulating varnish ANSWER DOWNLOAD EXAMIANS APP
DC Generators As a result of armature reaction, the reduction in the total mutual air gap flux in a D.C. generator is approximately 40 percent 5 percent 10 percent 25 percent 40 percent 5 percent 10 percent 25 percent ANSWER DOWNLOAD EXAMIANS APP
DC Generators The bearings used to support the rotor shafts are generally Bush bearings Needle bearings Magnetic bearings Ball bearings Bush bearings Needle bearings Magnetic bearings Ball bearings ANSWER DOWNLOAD EXAMIANS APP
DC Generators The e.m.f. induced in the armature of a shunt generator is 600 V. The armature resistance is 0.1 ohm. If the armature current is 200 A, the terminal voltage will be 640 V 580 V 600 V 620 V 640 V 580 V 600 V 620 V ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS