DC Motors The friction and windage losses in a dc motor depends upon Field and armature resistance Flux Armature current Speed Field and armature resistance Flux Armature current Speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc series motor is most suitable for Punch presses Cranes Pump Lathes Punch presses Cranes Pump Lathes ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a motor falls from 1100 r.p.m. at no-load to 1050 r.p.m. at rated load. The speed regulation of the motor is 4.76% 6.77% 2.22% 8.85% 4.76% 6.77% 2.22% 8.85% ANSWER DOWNLOAD EXAMIANS APP
DC Motors The commutating pole winding is connected in Series with the armature Series-parallel with the armature Parallel with the armature None of the listed here Series with the armature Series-parallel with the armature Parallel with the armature None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc machines the residual magnetism is of the order of 10 to 15 percent 50 to 75 percent 2 to 3 percent 20 to 25 percent 10 to 15 percent 50 to 75 percent 2 to 3 percent 20 to 25 percent ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc compound machine, Series field winding plays dominant role Either can play dominant role Both play equally dominant role Shunt field winding plays dominant role Series field winding plays dominant role Either can play dominant role Both play equally dominant role Shunt field winding plays dominant role ANSWER DOWNLOAD EXAMIANS APP
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