DC Motors Which of the following in a dc motor, can sustain the maximum temperature rise? Field winding Commutator Armature winding Slip rings Field winding Commutator Armature winding Slip rings ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which method of braking is generally used in elevators? Rheostat braking Plugging Regenerative braking None of these Rheostat braking Plugging Regenerative braking None of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following motor is preferred for operation in highly explosive atmosphere? Shunt motor Series motor Air motor Battery operated motor Shunt motor Series motor Air motor Battery operated motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors At the instant of starting when a D.C. motor is put on supply, it behaves like None of these A capacitive circuit A highly resistive circuit A low resistance circuit None of these A capacitive circuit A highly resistive circuit A low resistance circuit ANSWER DOWNLOAD EXAMIANS APP
DC Motors Three point starter can be used for Series motor only Both shunt and compound motor Shunt motor only Compound motor only Series motor only Both shunt and compound motor Shunt motor only Compound motor only ANSWER DOWNLOAD EXAMIANS APP
DC Motors For a D.C. shunt motor if the excitation is changed Torque will remain constant Torque will change but power will remain constant Torque and power both will change Torque, power and speed, all will change Torque will remain constant Torque will change but power will remain constant Torque and power both will change Torque, power and speed, all will change ANSWER DOWNLOAD EXAMIANS APP
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