DC Motors In D.C. motor which of the following can sustain the maximum temperature rise? Slip rings Armature winding Commutator Field winding Slip rings Armature winding Commutator Field winding ANSWER DOWNLOAD EXAMIANS APP
DC Motors By putting controller resistance in series with the armature of a dc motor, we can obtain speeds Above as well as below the normal speed None of the listed here Below the normal speed only Above the normal speed only Above as well as below the normal speed None of the listed here Below the normal speed only Above the normal speed only ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following law can be used to determine the direction of rotation of dc motor? Fleming's left hand rule Faraday's law Lenz's law Coloumb's law Fleming's left hand rule Faraday's law Lenz's law Coloumb's law ANSWER DOWNLOAD EXAMIANS APP
DC Motors The direction of rotation of a D.C. series motor can be changed by None of these Interchanging supply terminals Interchanging field terminals Either of (A) and (B) above None of these Interchanging supply terminals Interchanging field terminals Either of (A) and (B) above ANSWER DOWNLOAD EXAMIANS APP
DC Motors The commutating winding is basically used in a dc machine To reduce armature reaction To improve commutation None of the listed here To control the speed of machine To reduce armature reaction To improve commutation None of the listed here To control the speed of machine ANSWER DOWNLOAD EXAMIANS APP
DC Motors At the instant of starting when a D.C. motor is put on supply, it behaves like A low resistance circuit A capacitive circuit A highly resistive circuit None of these A low resistance circuit A capacitive circuit A highly resistive circuit None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS