DC Motors The back emf in a dc motor ______ Aids the armature current None of the listed here Opposes the applied voltage Aids the applied voltage Aids the armature current None of the listed here Opposes the applied voltage Aids the applied voltage ANSWER DOWNLOAD EXAMIANS APP
DC Motors The mechanical power developed by a shunt motor will be maximum when the ratio of back emf to applied voltage is 4.0 2.0 1.0 0.5 4.0 2.0 1.0 0.5 ANSWER DOWNLOAD EXAMIANS APP
DC Motors These days dc motors are widely used in Air compressors Machine shops Electric traction Pumping sets Air compressors Machine shops Electric traction Pumping sets ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following motor is preferred for operation in highly explosive atmosphere? Series motor Shunt motor Battery operated motor Air motor Series motor Shunt motor Battery operated motor Air motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which motor should be used for centrifugal pumps? Either series or shunt None of the listed here Series motor Shunt motor Either series or shunt None of the listed here Series motor Shunt motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors For the same H.P. rating and full load speed, following motor has poor starting torque Differentially compounded Shunt Series Cumulatively compounded Differentially compounded Shunt Series Cumulatively compounded ANSWER DOWNLOAD EXAMIANS APP
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