DC Motors In D.C. motor which of the following can sustain the maximum temperature rise? Field winding Slip rings Armature winding Commutator Field winding Slip rings Armature winding Commutator ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following can be used for controlling the speed of a dc motor? Thyratron Thyristor Thermistor Transistor Thyratron Thyristor Thermistor Transistor ANSWER DOWNLOAD EXAMIANS APP
DC Motors The resistance of shunt field winding as compared to series field winding is Less None of the listed here The same More Less None of the listed here The same More ANSWER DOWNLOAD EXAMIANS APP
DC Motors The mechanical power developed by a shunt motor will be maximum when the ratio of back emf to applied voltage is 0.5 2.0 1.0 4.0 0.5 2.0 1.0 4.0 ANSWER DOWNLOAD EXAMIANS APP
DC Motors The dirction of rotation of a dc series motor can be changed by Interchanging supply terminals None of the listed here Interchanging field terminals Either of Interchanging field or Interchanging supply Interchanging supply terminals None of the listed here Interchanging field terminals Either of Interchanging field or Interchanging supply ANSWER DOWNLOAD EXAMIANS APP
DC Motors The value of back emf in dc motor is maximum at No load Full load None of the listed here Half full load No load Full load None of the listed here Half full load ANSWER DOWNLOAD EXAMIANS APP
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