DC Motors In D.C. motor which of the following can sustain the maximum temperature rise? Slip rings Field winding Armature winding Commutator Slip rings Field winding Armature winding Commutator ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. machines the residual magnetism is of the order of 2 to 3 percent 50 to 75 percent 10 to 15 percent 20 to 25 percent 2 to 3 percent 50 to 75 percent 10 to 15 percent 20 to 25 percent ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc compound machine, Shunt field winding plays dominant role Both play equally dominant role Series field winding plays dominant role Either can play dominant role Shunt field winding plays dominant role Both play equally dominant role Series field winding plays dominant role Either can play dominant role ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following loss in a D.C. generator varies significantly with the load current? Windage loss Armature copper loss Field copper loss None of these Windage loss Armature copper loss Field copper loss None of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors The value of back emf in dc motor is maximum at Full load Half full load None of the listed here No load Full load Half full load None of the listed here No load ANSWER DOWNLOAD EXAMIANS APP
DC Motors The back emf in a dc motor ______ Opposes the applied voltage Aids the applied voltage Aids the armature current None of the listed here Opposes the applied voltage Aids the applied voltage Aids the armature current None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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