DC Generators The armature of a dc machine having 10 poles is rotating at a speed of 10 revolution per second. The number of hysteresis loops formed per second is ______ 50 150 10 100 50 150 10 100 ANSWER DOWNLOAD EXAMIANS APP
DC Generators ______ dc machine are most common. 4 pole 2 pole 8 pole 6 pole 4 pole 2 pole 8 pole 6 pole ANSWER DOWNLOAD EXAMIANS APP
DC Generators The real working part of a dc machine is the ______ Armature winding None of the listed here Commutator Field winding Armature winding None of the listed here Commutator Field winding ANSWER DOWNLOAD EXAMIANS APP
DC Generators A sinusoidal voltage of 5 Hz is applied to the field of a shunt generator. The armature voltage wave will be of 5 Hz will be of 5 xiVHz will be zero will be of v Hz 5 will be of 5 Hz will be of 5 xiVHz will be zero will be of v Hz 5 ANSWER DOWNLOAD EXAMIANS APP
DC Generators The main factor which leads to unstable parallel operation of flat and over compounded generators is unequal number of turns in their series field windings their rising voltage characteristics unequal series field resistances unequal speed regulation of their primemovers unequal number of turns in their series field windings their rising voltage characteristics unequal series field resistances unequal speed regulation of their primemovers ANSWER DOWNLOAD EXAMIANS APP
DC Generators The coupling field between electrical and mechanical systems of a dc machine is ______ Magnetic field None of the listed here Both electrical and magnetic fields Electric field Magnetic field None of the listed here Both electrical and magnetic fields Electric field ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS