DC Motors For constant torque drive which speed control method is preferred? Shunt armature control Field control Mechanical loading system Armature voltage control Shunt armature control Field control Mechanical loading system Armature voltage control ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. machines the residual magnetism is of the order of 20 to 25 percent 50 to 75 percent 2 to 3 percent 10 to 15 percent 20 to 25 percent 50 to 75 percent 2 to 3 percent 10 to 15 percent ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which motor should be used for centrifugal pumps? Shunt motor Series motor Either series or shunt None of the listed here Shunt motor Series motor Either series or shunt None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a dc motor is to be selected for conveyors, which motor would be preferred? Series motor Shunt motor Differentially compound motor Cummulative compound motor Series motor Shunt motor Differentially compound motor Cummulative compound motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors ______ motors never use belt connected loads. Differentially compounded Shunt Series Cummulative compounded Differentially compounded Shunt Series Cummulative compounded ANSWER DOWNLOAD EXAMIANS APP
DC Motors Carbon brushes are preferable to copper brushes because _____ They have lower resistance They have longer life They reduce sparking They reduce armature reaction They have lower resistance They have longer life They reduce sparking They reduce armature reaction ANSWER DOWNLOAD EXAMIANS APP
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