DC Motors At the instant of starting when a D.C. motor is put on supply, it behaves like A highly resistive circuit A low resistance circuit A capacitive circuit None of these A highly resistive circuit A low resistance circuit A capacitive circuit None of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors Differentially compound D.C. motors can find applications requiring High starting torque Frequent on-off cycles Low starting torque Variable speed High starting torque Frequent on-off cycles Low starting torque Variable speed 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 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 Can be used for 50°C ambient temperature also Of higher H.P. should be selected ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a dc motor is to be selected for conveyors, which motor would be preferred? Differentially compound motor Series motor Shunt motor Cummulative compound motor Differentially compound motor Series motor Shunt motor Cummulative compound motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors These days dc motors are widely used in Machine shops Electric traction Pumping sets Air compressors Machine shops Electric traction Pumping sets Air compressors ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a D.C. shunt motor is working at full load and if shunt field circuit suddenly opens This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Motor will come to stop Nothing will happen to motor This will make armature to take heavy current, possibly burning it This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Motor will come to stop Nothing will happen to motor This will make armature to take heavy current, possibly burning it ANSWER DOWNLOAD EXAMIANS APP
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