Electrical Machines The slip of an induction motor during DC rheostatic braking is s. 1 - s. 2 - s. 2 + s. s. 1 - s. 2 - s. 2 + s. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following relation is correct? Xd < Xq. Xd > Xq. None of these Xd = Xq. Xd < Xq. Xd > Xq. None of these Xd = Xq. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If terminal voltage of one 1000 rpm shunt motor is reduced to half the speed of the motor will be 1000 rpm 500 rpm 250 rpm 2000 rpm 1000 rpm 500 rpm 250 rpm 2000 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The full load copper loss and iron loss of transformer are 6400W and 5000W respectively. The copper loss and iron loss at half load will be respectively? 1600 W and 1250 W 3200 W and 5200 W 1600 W and 5000 W 3200 W and 2500 W 1600 W and 1250 W 3200 W and 5200 W 1600 W and 5000 W 3200 W and 2500 W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor has synchronous speed of 1500 rpm. What will be the slip when it is running at a speed of 1450 rpm? +3% -3.33% +3.33% -3% +3% -3.33% +3.33% -3% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To have sparkless commutation, the armature reaction effect in a DC machine is neutralized by increasing field excitation. compensating winding and commutating poles. shifting the brush axis from GNA to MNA. fixing the brush axis inline with the pole axis. increasing field excitation. compensating winding and commutating poles. shifting the brush axis from GNA to MNA. fixing the brush axis inline with the pole axis. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS