DC Motors If the speed of a dc shunt motor is increased the back emf of the motor will Remains same Increase Become zero Decrease Remains same Increase Become zero Decrease ANSWER DOWNLOAD EXAMIANS APP
DC Motors By looking at which part of the motor, it can be easily confirmed that a particular motor is D.C. motor? Stator Commutator Frame Shaft Stator Commutator Frame Shaft ANSWER DOWNLOAD EXAMIANS APP
DC Motors During rheostat braking of dc series motor Motor is run as a generator Motor is reversed in direction Motor is run at reduced speed None of the listed here Motor is run as a generator Motor is reversed in direction Motor is run at reduced speed None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which method of braking is generally used in elevators? None of these Rheostat braking Plugging Regenerative braking None of these Rheostat braking Plugging Regenerative braking 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 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 6.77% 4.76% 2.22% 8.85% 6.77% 4.76% 2.22% 8.85% ANSWER DOWNLOAD EXAMIANS APP
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