DC Motors The main disadvantage of the Ward-Leonard control method is All of these Low efficiency at high loads High initial cost High maintenance cost All of these Low efficiency at high loads High initial cost High maintenance cost ANSWER DOWNLOAD EXAMIANS APP
DC Motors If conditions for maximum power for a dc motor are established, the efficiency of the motor will be Less than 50% 80 to 90 % 60 to 70 % 100 % Less than 50% 80 to 90 % 60 to 70 % 100 % ANSWER DOWNLOAD EXAMIANS APP
DC Motors The compensating winding is connected in Series-parallel with armature Series with armature Parallel with armature None of the listed here Series-parallel with armature Series with armature Parallel with armature None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following losses are significantly reduced by laminating the core of a D.C. generator? Windage losses Hysteresis losses Copper losses Eddy current losses Windage losses Hysteresis losses Copper losses Eddy current losses ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following application requires high starting torque? Locomotive Lathe machine Centrifugal pump Air blower Locomotive Lathe machine Centrifugal pump Air blower 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
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