DC Motors The greatest percentage of power loss in a dc motor is due to Windage loss Core loss Copper loss Friction loss Windage loss Core loss Copper loss Friction loss ANSWER DOWNLOAD EXAMIANS APP
DC Motors By flux control method of speed control of a dc shunt motor, we can obtain speeds. Below the normal speed only Above as well as below the normal speed None of the listed here Above the normal speed only Below the normal speed only Above as well as below the normal speed None of the listed here Above the normal speed only ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc machines the residual magnetism is of the order of 2 to 3 percent 10 to 15 percent 20 to 25 percent 50 to 75 percent 2 to 3 percent 10 to 15 percent 20 to 25 percent 50 to 75 percent ANSWER DOWNLOAD EXAMIANS APP
DC Motors D.C. generators are normally designed for maximum efficiency around All of these Rated r.p.m. Rated voltage Full load All of these Rated r.p.m. Rated voltage Full load ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a D.C. series motor, if the armature current is reduced by 50%, the torque of the motor will be equal to 100% of the previous value 10% of the previous value 25% of the previous value 50% of the previous value 100% of the previous value 10% of the previous value 25% of the previous value 50% of the previous value ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc compound machine, 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 Either can play dominant role Series field winding plays dominant role Shunt field winding plays dominant role ANSWER DOWNLOAD EXAMIANS APP
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