DC Motors The direction of rotation of a D.C. series motor can be changed by Either of (A) and (B) above Interchanging supply terminals Interchanging field terminals None of these Either of (A) and (B) above Interchanging supply terminals Interchanging field terminals None of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors A series motor will over speed when The load is increase The field is opened The armature circuit is opened. Load is removed The load is increase The field is opened The armature circuit is opened. Load is removed ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a D.C. motor is to be selected for conveyors, which rriotor would be preferred ? Differentially compound motor Cumulative compound motor Shunt motor Series motor Differentially compound motor Cumulative compound motor Shunt motor Series motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor, the brushes are shifted from the mechanical neutral plane in a direction opposite to the rotation to _____ Increase speed Reduce sparking Produce flat characteristics Decrease speed Increase speed Reduce sparking Produce flat characteristics Decrease speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. shunt motors as load is reduced The speed will reduce The speed will increase in proportion to reduction in load The speed will increase abruptly The speed will remain almost/constant The speed will reduce The speed will increase in proportion to reduction in load The speed will increase abruptly The speed will remain almost/constant ANSWER DOWNLOAD EXAMIANS APP
DC Motors The shaft torque in a dc motor is less than total armature torque because of ______ in the motor. None of the listed here Field losses Iron and friction losses Cu losses None of the listed here Field losses Iron and friction losses Cu losses ANSWER DOWNLOAD EXAMIANS APP
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