DC Motors If the terminals of armature of D.C. motor are interchanged, this action will offer following kind of braking Regenerative None of these Dynamic braking Plugging Regenerative None of these Dynamic braking Plugging ANSWER DOWNLOAD EXAMIANS APP
DC Motors Armature reaction in dc motor is increased When the armature current decreases When the armature current increases By interpoles When the field current increases When the armature current decreases When the armature current increases By interpoles When the field current increases ANSWER DOWNLOAD EXAMIANS APP
DC Motors If conditions for maximum power for a dc motor are established, the efficiency of the motor will be 60 to 70 % 100 % Less than 50% 80 to 90 % 60 to 70 % 100 % Less than 50% 80 to 90 % ANSWER DOWNLOAD EXAMIANS APP
DC Motors For the same H.P. rating and full load speed, following motor has poor starting torque Cumulatively compounded Shunt Series Differentially compounded Cumulatively compounded Shunt Series Differentially compounded ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. motor which of the following can sustain the maximum temperature rise? Slip rings Field winding Armature winding Commutator Slip rings Field winding Armature winding Commutator ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which D.C. motor has got maximum self loading property? Shunt motor Series motor Differentially compounded motor Cumulatively compounded motor Shunt motor Series motor Differentially compounded motor Cumulatively compounded motor ANSWER DOWNLOAD EXAMIANS APP
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