DC Motors In dc machines fractional pitch winding is used To increase the generated emf To reduce the sparking To improve cooling To reduce the generated emf To increase the generated emf To reduce the sparking To improve cooling To reduce the generated emf 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? Commutator Shaft Stator Frame Commutator Shaft Stator Frame ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following application requires high starting torque? Air blower Centrifugal pump Lathe machine Locomotive Air blower Centrifugal pump Lathe machine Locomotive ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a dc motor can be controlled by changing Aplied voltage Is flux All of the listed here Armature circuit resistance Aplied voltage Is flux All of the listed here Armature circuit resistance 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 2.22% 8.85% 6.77% 4.76% 2.22% 8.85% 6.77% 4.76% ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which method of braking is generally used in elevators? Plugging Rheostat braking Regenerative braking None of these Plugging Rheostat braking Regenerative braking None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS