DC Motors If conditions for maximum power for a dc motor are established, the efficiency of the motor will be 60 to 70 % 80 to 90 % Less than 50% 100 % 60 to 70 % 80 to 90 % Less than 50% 100 % ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following motor is preferred for operation in highly explosive atmosphere? Battery operated motor Air motor Series motor Shunt motor Battery operated motor Air motor Series motor Shunt motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors The armature voltage control of dc motor provides None of the listed here Constant current drive Constant torque drive Constant voltage drive None of the listed here Constant current drive Constant torque drive Constant voltage drive ANSWER DOWNLOAD EXAMIANS APP
DC Motors In which of the following tests only one motor is required? Swinburne's test Brake test Hopkinson's test Field's test Swinburne's test Brake test Hopkinson's test Field's test ANSWER DOWNLOAD EXAMIANS APP
DC Motors The most suitable motor for elevators is the ____ motor. Differentially compuonded Cummulative compounded Series Shunt Differentially compuonded Cummulative compounded Series Shunt 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 Rated full-load current Almost negligible More than full-load current Less than full-load current Rated full-load current Almost negligible More than full-load current Less than full-load current ANSWER DOWNLOAD EXAMIANS APP
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