DC Motors A direct on line starter is used for starting motors Upto 20 HP Upto 5 HP Upto 10 HP Upto 15 HP Upto 20 HP Upto 5 HP Upto 10 HP Upto 15 HP ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor, the brushes are shifted from the mechanical neutral plane in a direction opposite to the rotation to _____ Increase speed Reduce sparking Decrease speed Produce flat characteristics Increase speed Reduce sparking Decrease speed Produce flat characteristics ANSWER DOWNLOAD EXAMIANS APP
DC Motors The friction and windage losses in a dc motor depends upon Flux Speed Field and armature resistance Armature current Flux Speed Field and armature resistance Armature current ANSWER DOWNLOAD EXAMIANS APP
DC Motors A series motor will over speed when The load is increase The armature circuit is opened. Load is removed The field is opened The load is increase The armature circuit is opened. Load is removed The field is opened ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which motor has the poorest speed control? Shunt motor Cummulative compounded motor Series motor Differentially compounded motor Shunt motor Cummulative compounded motor Series motor Differentially compounded motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a series motor at no load is 2000 rpm Infinity 1000 rpm 4000 rpm 2000 rpm Infinity 1000 rpm 4000 rpm ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS