DC Motors Differentially compound D.C. motors can find applications requiring Frequent on-off cycles High starting torque Low starting torque Variable speed Frequent on-off cycles High starting torque Low starting torque Variable speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc series motor is best suited for driving Machine tools Cranes and hoists Shear and punches None of the listed here Machine tools Cranes and hoists Shear and punches None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors A compensating winding is an auxiliary winding embedded in slots in None of the listed here Partly in pole faces, partly in armature The armature The pole faces of main poles None of the listed here Partly in pole faces, partly in armature The armature The pole faces of main poles ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a D.C. motor designed for 40°C ambient temperature is to be used for 50°C ambient temperature, then the motor Can be used for 50°C ambient temperature also Of higher H.P. should be selected Is to be de-rated by a factor recommended by manufacturer and select the next higher H.P. motor Of lower H.P. should be selected Can be used for 50°C ambient temperature also Of higher H.P. should be selected Is to be de-rated by a factor recommended by manufacturer and select the next higher H.P. motor Of lower H.P. should be selected ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following loss in a D.C. generator varies significantly with the load current? Armature copper loss Field copper loss None of these Windage loss Armature copper loss Field copper loss None of these Windage loss ANSWER DOWNLOAD EXAMIANS APP
DC Motors A series motor will over speed when The field is opened Load is removed The load is increase The armature circuit is opened. The field is opened Load is removed The load is increase The armature circuit is opened. ANSWER DOWNLOAD EXAMIANS APP
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