DC Motors The commutating winding is basically used in a dc machine None of the listed here To improve commutation To reduce armature reaction To control the speed of machine None of the listed here To improve commutation To reduce armature reaction To control the speed of machine ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following motor is preferred for operation in highly explosive atmosphere? Battery operated motor Shunt motor Series motor Air motor Battery operated motor Shunt motor Series motor Air motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. shunt motors as load is reduced The speed will remain almost/constant The speed will increase in proportion to reduction in load The speed will increase abruptly The speed will reduce The speed will remain almost/constant The speed will increase in proportion to reduction in load The speed will increase abruptly The speed will reduce ANSWER DOWNLOAD EXAMIANS APP
DC Motors For a D.C. shunt motor if the excitation is changed Torque and power both will change Torque will change but power will remain constant Torque, power and speed, all will change Torque will remain constant Torque and power both will change Torque will change but power will remain constant Torque, power and speed, all will change Torque will remain constant ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which method of braking is generally used in elevators? Plugging Regenerative braking None of these Rheostat braking Plugging Regenerative braking None of these Rheostat braking ANSWER DOWNLOAD EXAMIANS APP
DC Motors These days dc motors are widely used in Electric traction Pumping sets Air compressors Machine shops Electric traction Pumping sets Air compressors Machine shops ANSWER DOWNLOAD EXAMIANS APP
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