DC Generators The overall efficiency of a dc generator is maximum when its variable loss is equal to Constant loss Iron loss Mechanical loss Stray loss Constant loss Iron loss Mechanical loss Stray loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature winding of a dc machine is place on the rotor to ______ Save iron Facilitate commutation Reduce losses Reduce armature reaction Save iron Facilitate commutation Reduce losses Reduce armature reaction 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 10 percent 5 percent 40 percent 25 percent 10 percent 5 percent 40 percent 25 percent ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a wave winding, the commutator pitch is approximately equal to Twice the pole pitch None of the listed here Thrice the pole pitch Pole pitch Twice the pole pitch None of the listed here Thrice the pole pitch Pole pitch ANSWER DOWNLOAD EXAMIANS APP
DC Generators The greatest percentage of heat loss in a dc machine is due to ______ Copper loss Eddy current loss Frictional loss Hysteresis loss Copper loss Eddy current loss Frictional loss Hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators The number of parallel paths in a simplex lap winding is equal to Number of pairs of poles None of the listed here 2 Number of poles Number of pairs of poles None of the listed here 2 Number of poles ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS