DC Motors A direct on line starter is used for starting motors Upto 10 HP Upto 20 HP Upto 15 HP Upto 5 HP Upto 10 HP Upto 20 HP Upto 15 HP Upto 5 HP ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a dc motor can be controlled by changing Is flux Aplied voltage Armature circuit resistance All of the listed here Is flux Aplied voltage Armature circuit resistance All of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the terminals of armature of D.C. motor are interchanged, this action will offer following kind of braking Regenerative Plugging None of these Dynamic braking Regenerative Plugging None of these Dynamic braking ANSWER DOWNLOAD EXAMIANS APP
DC Motors The mechanical power developed in a dc motor is maximum when back emf is equal to _____ the applied voltage. Twice One-third None of the listed here Half Twice One-third None of the listed here Half ANSWER DOWNLOAD EXAMIANS APP
DC Motors For constant torque drive which speed control method is preferred? Armature voltage control Shunt armature control Mechanical loading system Field control Armature voltage control Shunt armature control Mechanical loading system Field control 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 2.0 0.5 4.0 1.0 2.0 0.5 4.0 1.0 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS