Electrical Machines When a DC cummulative compound wound motor is loaded Torque decrease and speed increases. Both torque and speed decrease. Torque increase and speed decrease. Torque and speed both increase. Torque decrease and speed increases. Both torque and speed decrease. Torque increase and speed decrease. Torque and speed both increase. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The main purpose of providing tertiary winding in a three phase transformer is to suppress harmonic and unbalance in voltage. to carry extra load. None of these to interconnect three voltage systems. to suppress harmonic and unbalance in voltage. to carry extra load. None of these to interconnect three voltage systems. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A transformer has maximum efficiency at 3/4 load. The ratio of iron loss and full load copper loss is 9/16. 4/3. 16/9. 3/4. 9/16. 4/3. 16/9. 3/4. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The stator core of a 3 - Φ induction motor is laminated in order to reduce the weight of the stator. eddy current loss. hysteresis loss. both of the above. weight of the stator. eddy current loss. hysteresis loss. both of the above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor drawing an armature current of Ia is operating under saturated magnetic conditions. The torque developed in the motor is proportional to I/Ia2 Ia2 1/Ia Ia I/Ia2 Ia2 1/Ia Ia ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dynamic braking is very effective for differential compound motors. series motors. shunt motors. separately excited motors. differential compound motors. series motors. shunt motors. separately excited motors. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS