DC Motors The direction of rotation of a D.C. series motor can be changed by Either of (A) and (B) above Interchanging field terminals None of these Interchanging supply terminals Either of (A) and (B) above Interchanging field terminals None of these Interchanging supply terminals ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the speed of a dc shunt motor is increased the back emf of the motor will Decrease Increase Remains same Become zero Decrease Increase Remains same Become zero ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor constant torque is produced due to Pole shoes Commutator Rotor laminations End plates Pole shoes Commutator Rotor laminations End plates ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following application requires high starting torque? Lathe machine Locomotive Centrifugal pump Air blower Lathe machine Locomotive Centrifugal pump Air blower ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. shunt motors as load is reduced The speed will reduce The speed will increase abruptly The speed will remain almost/constant The speed will increase in proportion to reduction in load The speed will reduce The speed will increase abruptly The speed will remain almost/constant The speed will increase in proportion to reduction in load ANSWER DOWNLOAD EXAMIANS APP
DC Motors The armature voltage control of dc motor provides Constant torque drive Constant voltage drive Constant current drive None of the listed here Constant torque drive Constant voltage drive Constant current drive None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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