DC Motors Which of the following methods gives the greatest braking torque? None of the listed here Rheostatic braking Plugging Regenerative braking None of the listed here Rheostatic braking Plugging Regenerative braking ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc compound machine, Shunt field winding plays dominant role Either can play dominant role Both play equally dominant role Series field winding plays dominant role Shunt field winding plays dominant role Either can play dominant role Both play equally dominant role Series field winding plays dominant role ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor, the brushes are shifted from the mechanical neutral plane in a direction opposite to the rotation to _____ Reduce sparking Decrease speed Increase speed Produce flat characteristics Reduce sparking Decrease speed Increase speed Produce flat characteristics ANSWER DOWNLOAD EXAMIANS APP
DC Motors The iron loss in dc motor depends on None of the listed here Speed only Flux only Both flux and speed None of the listed here Speed only Flux only Both flux and speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which motor should be used for centrifugal pumps? Series motor Shunt motor Either series or shunt None of the listed here Series motor Shunt motor Either series or shunt 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 Drum type controller is used Three point starter is used All above can be used Four point starter is used Drum type controller is used Three point starter is used All above can be used Four point starter is used ANSWER DOWNLOAD EXAMIANS APP
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