DC Motors A direct on line starter is used for starting motors Upto 5 HP Upto 20 HP Upto 15 HP Upto 10 HP Upto 5 HP Upto 20 HP Upto 15 HP Upto 10 HP ANSWER DOWNLOAD EXAMIANS APP
DC Motors For the same H.P. rating and full load speed, following motor has poor starting torque Differentially compounded Series Cumulatively compounded Shunt Differentially compounded Series Cumulatively compounded Shunt ANSWER DOWNLOAD EXAMIANS APP
DC Motors The main disadvantage of the Ward-Leonard control method is High initial cost All of these Low efficiency at high loads High maintenance cost High initial cost All of these Low efficiency at high loads High maintenance cost ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a dc motor is inversely proportional to flux per pole inversely proportional to applied voltage None of the listed here Directly proportional to flux per pole inversely proportional to flux per pole inversely proportional to applied voltage None of the listed here Directly proportional to flux per pole 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 In D.C. motor which of the following can sustain the maximum temperature rise? Field winding Armature winding Commutator Slip rings Field winding Armature winding Commutator Slip rings ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS