Electrical Machines Secondary winding of an auto transformer is also called damping winding. tertiary winding. common winding. compensating winding. damping winding. tertiary winding. common winding. compensating winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 240 V DC series motor takes 40 A when giving its rated output at 1500 rpm. Its resistance is 0.3 ohms. The value of resistance which must be added to obtain rated torque at 1000 rpm is 5.7 ohms. 1.9 ohms. 6 ohms. 2.2 ohms. 5.7 ohms. 1.9 ohms. 6 ohms. 2.2 ohms. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor must started on no load because it would Run at dangerously high speed. Fail to start without load. Not develop starting torque. Draw more current without producing sufficient torque. Run at dangerously high speed. Fail to start without load. Not develop starting torque. Draw more current without producing sufficient torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which motor used in Lathe machine? D.C. cumulative compound motor. D.C . series motor. D.C. shunt motor. None of these D.C. cumulative compound motor. D.C . series motor. D.C. shunt motor. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer the magnetic coupling between the primary and secondary winding can be increased by using soft material for winding. increasing the number of turns. using transformer oil of better quality. using the magnetic core of low reluctance. using soft material for winding. increasing the number of turns. using transformer oil of better quality. using the magnetic core of low reluctance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The power input to a 3 - φ induction motor is 60 kW and stator loss is 1 kW the rotor cu loss per phase is 1. slip X 50 / 3. slip X 59 / 3. slip X 69 / 3. 1. slip X 50 / 3. slip X 59 / 3. slip X 69 / 3. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS