DC Motors The direction of rotation of a D.C. series motor can be changed by Interchanging field terminals Interchanging supply terminals None of these Either of (A) and (B) above Interchanging field terminals Interchanging supply terminals None of these Either of (A) and (B) above ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the speed of a dc shunt motor is increased the back emf of the motor will Become zero Increase Decrease Remains same Become zero Increase Decrease Remains same 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 6.77% 2.22% 4.76% 8.85% 6.77% 2.22% 4.76% 8.85% ANSWER DOWNLOAD EXAMIANS APP
DC Motors Motor starter are essential for Avoiding excessive starting current Accelerating the motor Starting the motor Preventing fuse blowing Avoiding excessive starting current Accelerating the motor Starting the motor Preventing fuse blowing ANSWER DOWNLOAD EXAMIANS APP
DC Motors Three point starter can be used for Series motor only Shunt motor only Compound motor only Both shunt and compound motor Series motor only Shunt motor only Compound motor only Both shunt and compound motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors By putting controller resistance in series with the armature of a dc motor, we can obtain speeds Above as well as below the normal speed Below the normal speed only Above the normal speed only None of the listed here Above as well as below the normal speed Below the normal speed only Above the normal speed only None of the listed here ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS