DC Motors Which of the following methods gives the greatest braking torque? Plugging None of the listed here Regenerative braking Rheostatic braking Plugging None of the listed here Regenerative braking Rheostatic braking ANSWER DOWNLOAD EXAMIANS APP
DC Motors The shaft torque in a dc motor is less than total armature torque because of ______ in the motor. Cu losses None of the listed here Field losses Iron and friction losses Cu losses None of the listed here Field losses Iron and friction losses 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% 6.77% 8.85% 4.76% 2.22% 6.77% 8.85% 4.76% ANSWER DOWNLOAD EXAMIANS APP
DC Motors Flywheel is used with D.C. compound motor to reduce the peak demand by the motor, compound motor will have to be Differentially compounded Level compounded Under compounded Cumulatively compounded Differentially compounded Level compounded Under compounded Cumulatively compounded ANSWER DOWNLOAD EXAMIANS APP
DC Motors Usually wide and sensitive speed control is desired in case of Steel rolling mills Colliery winders Elevators Centrifugal pumps Steel rolling mills Colliery winders Elevators Centrifugal pumps ANSWER DOWNLOAD EXAMIANS APP
DC Motors Ward-Leonard control is basically a Field control method Armature resistance control method Field divertor method Voltage control method Field control method Armature resistance control method Field divertor method Voltage control method ANSWER DOWNLOAD EXAMIANS APP
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