DC Motors The iron loss in dc motor depends on Both flux and speed Speed only Flux only None of the listed here Both flux and speed Speed only Flux only None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors The running speed of a dc series motor is basically determined by Armature reaction Field excitation None of the listed here Load Armature reaction Field excitation None of the listed here Load ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which one of the following is not the function of pole shoes in a D.C. machine? To reduce the reluctance of the magnetic path To support the field coils To reduce eddy current loss To spread out flux for better uniformity To reduce the reluctance of the magnetic path To support the field coils To reduce eddy current loss To spread out flux for better uniformity ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc compound machine, Either can play dominant role Series field winding plays dominant role Shunt field winding plays dominant role Both play equally dominant role Either can play dominant role Series field winding plays dominant role Shunt field winding plays dominant role Both play equally dominant role ANSWER DOWNLOAD EXAMIANS APP
DC Motors A direct on line starter is used for starting motors Upto 10 HP Upto 20 HP Upto 5 HP Upto 15 HP Upto 10 HP Upto 20 HP Upto 5 HP Upto 15 HP ANSWER DOWNLOAD EXAMIANS APP
DC Motors If conditions for maximum power for a dc motor are established, the efficiency of the motor will be 80 to 90 % Less than 50% 60 to 70 % 100 % 80 to 90 % Less than 50% 60 to 70 % 100 % ANSWER DOWNLOAD EXAMIANS APP
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