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 Nothing will happen to motor Motor will come to stop 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 Nothing will happen to motor Motor will come to stop This will make armature to take heavy current, possibly burning it ANSWER DOWNLOAD EXAMIANS APP
DC Motors For constant torque drive which speed control method is preferred? Shunt armature control Armature voltage control Mechanical loading system Field control Shunt armature control Armature voltage control Mechanical loading system Field control ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a D.C. series motor, if the armature current is reduced by 50%, the torque of the motor will be equal to 50% of the previous value 25% of the previous value 10% of the previous value 100% of the previous value 50% of the previous value 25% of the previous value 10% of the previous value 100% of the previous value ANSWER DOWNLOAD EXAMIANS APP
DC Motors A compensating winding is an auxiliary winding embedded in slots in The armature None of the listed here Partly in pole faces, partly in armature The pole faces of main poles The armature None of the listed here Partly in pole faces, partly in armature The pole faces of main poles ANSWER DOWNLOAD EXAMIANS APP
DC Motors ______ motor has the best speed regulation. Cummulative compounded Differentially compounded Series Shunt Cummulative compounded Differentially compounded Series Shunt ANSWER DOWNLOAD EXAMIANS APP
DC Motors The commutating pole winding is connected in Parallel with the armature Series-parallel with the armature None of the listed here Series with the armature Parallel with the armature Series-parallel with the armature None of the listed here Series with the armature ANSWER DOWNLOAD EXAMIANS APP
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