DC Generators The terminal voltage of a D.C. shunt generator drops on load because of all of the following reasons except Commutation Armature reaction Field weakening due to armature reaction and armature Armature resistance drop Commutation Armature reaction Field weakening due to armature reaction and armature Armature resistance drop ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a four-pole D.C. machine All the four poles are south poles All the four poles are north poles Alternate poles are north and south Two north poles follow two south poles All the four poles are south poles All the four poles are north poles Alternate poles are north and south Two north poles follow two south poles ANSWER DOWNLOAD EXAMIANS APP
DC Generators The copper loss is constant for Series generator only None of the listed here Shunt generator only Both shunt and compound generator Series generator only None of the listed here Shunt generator only Both shunt and compound generator ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a long shunt compound wound generator , the shunt field is connected in parallel with Armature Parallel combination of armature and series field Series field Series combination of armature and series field Armature Parallel combination of armature and series field Series field Series combination of armature and series field ANSWER DOWNLOAD EXAMIANS APP
DC Generators The insulating material used between the commutator segments is normally Mica Insulating varnish Paper Graphite Mica Insulating varnish Paper Graphite ANSWER DOWNLOAD EXAMIANS APP
DC Generators The greatest percentage of heat loss in a dc machine is due to ______ Frictional loss Copper loss Eddy current loss Hysteresis loss Frictional loss Copper loss Eddy current loss Hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
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