DC Motors Which of the following motor is preferred for operation in highly explosive atmosphere? Shunt motor Series motor Battery operated motor Air motor Shunt motor Series motor Battery operated motor Air motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc machines the residual magnetism is of the order of 20 to 25 percent 50 to 75 percent 10 to 15 percent 2 to 3 percent 20 to 25 percent 50 to 75 percent 10 to 15 percent 2 to 3 percent ANSWER DOWNLOAD EXAMIANS APP
DC Motors D.C. series motors are used Where load changes frequently Where constant operating speed is needed Where load is constant None of these Where load changes frequently Where constant operating speed is needed Where load is constant None of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a D.C. shunt motor, under the conditions of maximum power, the current in the armature will be More than full-load current Rated full-load current Less than full-load current Almost negligible More than full-load current Rated full-load current Less than full-load current Almost negligible ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a dc motor is to be selected for conveyors, which motor would be preferred? Differentially compound motor Shunt motor Series motor Cummulative compound motor Differentially compound motor Shunt motor Series motor Cummulative compound motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors Compensating winding in a dc machine is placed 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 None of the listed here ANSWER DOWNLOAD EXAMIANS APP