DC Motors Which of the following motor is preferred for operation in highly explosive atmosphere? Air motor Battery operated motor Series motor Shunt motor Air motor Battery operated motor Series motor Shunt motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a series motor at no load is 2000 rpm 4000 rpm 1000 rpm Infinity 2000 rpm 4000 rpm 1000 rpm Infinity ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following methods gives the greatest braking torque? None of the listed here Plugging Regenerative braking Rheostatic braking None of the listed here Plugging Regenerative braking Rheostatic braking ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. machines the residual magnetism is of the order of 2 to 3 percent 50 to 75 percent 20 to 25 percent 10 to 15 percent 2 to 3 percent 50 to 75 percent 20 to 25 percent 10 to 15 percent ANSWER DOWNLOAD EXAMIANS APP
DC Motors Compensating winding in a dc machine is placed None of the listed here On armature On yoke in the pole faces On yoke in the interpolar gap None of the listed here On armature On yoke in the pole faces On yoke in the interpolar gap ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a dc motor can be controlled by changing Is flux Armature circuit resistance All of the listed here Aplied voltage Is flux Armature circuit resistance All of the listed here Aplied voltage ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS