DC Motors The greatest percentage of power loss in a dc motor is due to Friction loss Copper loss Windage loss Core loss Friction loss Copper loss Windage loss Core loss ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which motor should be used for centrifugal pumps? Shunt motor Either series or shunt None of the listed here Series motor Shunt motor Either series or shunt None of the listed here Series motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors If conditions for maximum power for a dc motor are established, the efficiency of the motor will be 80 to 90 % 100 % Less than 50% 60 to 70 % 80 to 90 % 100 % Less than 50% 60 to 70 % ANSWER DOWNLOAD EXAMIANS APP
DC Motors The running speed of a dc series motor is basically determined by Armature reaction Load Field excitation None of the listed here Armature reaction Load Field excitation None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors The torque developed by a dc motor is directly proportional to Armature resistance × armature current Armature resistance × applied voltage Flux per pole × armature current None of the listed here Armature resistance × armature current Armature resistance × applied voltage Flux per pole × armature current None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors Where D.C. motor of H.P. 12 or more requires frequent starting, stopping, reversing and speed control Three point starter is used Four point starter is used Drum type controller is used All above can be used Three point starter is used Four point starter is used Drum type controller is used All above can be used ANSWER DOWNLOAD EXAMIANS APP
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