DC Motors The speed of a dc motor is inversely proportional to flux per pole None of the listed here inversely proportional to applied voltage Directly proportional to flux per pole inversely proportional to flux per pole None of the listed here inversely proportional to applied voltage Directly proportional to flux per pole ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a _____ motor is practically constant. Series Cumulatively compounded Differentially compounded Shunt Series Cumulatively compounded Differentially compounded Shunt ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following in a dc motor, can sustain the maximum temperature rise? Armature winding Commutator Field winding Slip rings Armature winding Commutator Field winding Slip rings ANSWER DOWNLOAD EXAMIANS APP
DC Motors These days dc motors are widely used in Machine shops Pumping sets Electric traction Air compressors Machine shops Pumping sets Electric traction Air compressors ANSWER DOWNLOAD EXAMIANS APP
DC Motors In dc machines fractional pitch winding is used To reduce the sparking To increase the generated emf To improve cooling To reduce the generated emf To reduce the sparking To increase the generated emf To improve cooling To reduce the generated emf ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a D.C. shunt motor is working at full load and if shunt field circuit suddenly opens 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 This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Motor will come to stop ANSWER DOWNLOAD EXAMIANS APP
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