DC Motors Dc series motors are used in those applications where _____ is required. High starting torque Low no load speed Constant speed None of the listed here High starting torque Low no load speed Constant speed None of the listed here 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 Of lower H.P. should be selected Is to be de-rated by a factor recommended by manufacturer and select the next higher H.P. motor Can be used for 50°C ambient temperature also Of higher H.P. should be selected Of lower H.P. should be selected Is to be de-rated by a factor recommended by manufacturer and select the next higher H.P. motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a dc motor can be controlled by changing Aplied voltage Is flux Armature circuit resistance All of the listed here Aplied voltage Is flux Armature circuit resistance All of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which motor should be used for centrifugal pumps? Either series or shunt None of the listed here Shunt motor Series motor Either series or shunt None of the listed here Shunt motor Series motor 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 All above can be used Drum type controller is used Four point starter is used Three point starter is used All above can be used Drum type controller is used Four point starter is used ANSWER DOWNLOAD EXAMIANS APP
DC Motors The dirction of rotation of a dc series motor can be changed by Interchanging supply terminals Either of Interchanging field or Interchanging supply Interchanging field terminals None of the listed here Interchanging supply terminals Either of Interchanging field or Interchanging supply Interchanging field terminals None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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