DC Motors The back emf in a dc motor ______ 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 Aids the armature current None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which motor should be used for centrifugal pumps? Either series or shunt Shunt motor Series motor None of the listed here Either series or shunt Shunt motor Series motor None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors The armature torque of the D.C. shunt motor is proportional to field flux only armature current only both (A) and (B) None of these field flux only armature current only both (A) and (B) None of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a motor falls from 1100 r.p.m. at no-load to 1050 r.p.m. at rated load. The speed regulation of the motor is 4.76% 6.77% 8.85% 2.22% 4.76% 6.77% 8.85% 2.22% ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following losses are significantly reduced by laminating the core of a D.C. generator? Windage losses Hysteresis losses Copper losses Eddy current losses Windage losses Hysteresis losses Copper losses Eddy current losses ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a dc motor is to be selected for conveyors, which motor would be preferred? Series motor Cummulative compound motor Shunt motor Differentially compound motor Series motor Cummulative compound motor Shunt motor Differentially compound motor ANSWER DOWNLOAD EXAMIANS APP
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