DC Generators The commutator of a dc generator acts as None of the listed here A rectifier An amplifier A load None of the listed here A rectifier An amplifier A load ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a D.C. generator Magnetization characteristic = external characteristic External characteristic = magnetization characteristic ohmic drop armature reaction External resistance = internal characteristic armature reaction Internal characteristic = magnetization characteristic ohmic drop Magnetization characteristic = external characteristic External characteristic = magnetization characteristic ohmic drop armature reaction External resistance = internal characteristic armature reaction Internal characteristic = magnetization characteristic ohmic drop ANSWER DOWNLOAD EXAMIANS APP
DC Generators A separately excited generator as compared to a self-excited generator Has exciting current independent of load current Has all above features Is more stable Is amenable to better voltage control Has exciting current independent of load current Has all above features Is more stable Is amenable to better voltage control ANSWER DOWNLOAD EXAMIANS APP
DC Generators The greatest percentage of heat loss in a dc machine is due to ______ Frictional loss Eddy current loss Copper loss Hysteresis loss Frictional loss Eddy current loss Copper loss Hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators If the flux per pole of dc generator is halved but its speed is doubled, its generated emf will Remain the same Be halved Be quadrupled Be doubled Remain the same Be halved Be quadrupled Be doubled ANSWER DOWNLOAD EXAMIANS APP
DC Generators The yoke of a dc machine is made of Soft iron Cast steel Aluminum Silicon steel Soft iron Cast steel Aluminum Silicon steel ANSWER DOWNLOAD EXAMIANS APP
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