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 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 Can be used for 50°C ambient temperature also ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which motor should be used for centrifugal pumps? Shunt motor Either series or shunt None of the listed here Series motor Shunt motor Either series or shunt None of the listed here Series motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors The most suitable motor for elevators is the ____ motor. Cummulative compounded Series Shunt Differentially compuonded Cummulative compounded Series Shunt Differentially compuonded ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a D.C. shunt motor is working at no load and if shunt field circuit suddenly opens Nothing will happen to the motor This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses This will make armature to take heavy current, possibly burning it Motor will run at very slow speed Nothing will happen to the motor This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses This will make armature to take heavy current, possibly burning it Motor will run at very slow speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors One D.C. motor drives another D.C. motor. The second D.C. motor when excited and driven Also runs as a motor comes to stop after sometime Does not run as a generator None of these Runs as a generator Also runs as a motor comes to stop after sometime Does not run as a generator None of these Runs as a generator ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which D.C. motor is generally preferred for cranes and hoists? Differentially compounded motor Shunt motor Cumulatively compounded motor Series motor Differentially compounded motor Shunt motor Cumulatively compounded motor Series motor ANSWER DOWNLOAD EXAMIANS APP
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