Electrical Machines Saving of copper in auto transformer is increased as compared to two winding transformer, when transformation ratio K approaches to unity. infinity. zero. two. unity. infinity. zero. two. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Direction of the current in the compensating winding is________ to the direction of current in the armature conductors? same exactly opposite either of these None of these same exactly opposite either of these None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a resistance split phase motor, what is the range of torque angle? 0° 90° 25° to 30° 70° to 85° 0° 90° 25° to 30° 70° to 85° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt generator, when commissioned after a major repair of the field system, failed to build Up voltage. It was because field winding was wrongly connected field system lost residual magnetism field resistance was higher than critical resistance there was a break in the armature circuit field winding was wrongly connected field system lost residual magnetism field resistance was higher than critical resistance there was a break in the armature circuit ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the load current and flux of a DC motor are held constant and voltage applied across it armature is increased by 5%, the speed of the motor will Depends on other factor. Increase by 5%. Remain unchanged. Reduce by 5%. Depends on other factor. Increase by 5%. Remain unchanged. Reduce by 5%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In above question, the output power delivered by generator G1 and G2 will be 9.3 kW, 9.3 kW. 5.7 kW, 8.7 kW. 9.6 kW, 12 kW. 6.3 kW, 9.3 kW. 9.3 kW, 9.3 kW. 5.7 kW, 8.7 kW. 9.6 kW, 12 kW. 6.3 kW, 9.3 kW. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS