Power Systems The corona loss on a particular system at 60 Hz is 1 kW/km per phase. What is the corona loss at 50 Hz in kW/km per phase? 0.93 0.882 1.13 1 0.93 0.882 1.13 1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power station has a maximum demand of 15000 kW. The annual load factor is 50% and plant capacity factor is 40%. What is the reserve capacity of the plant? 3000 kW 7500 kW 3750 kW 6000 kW 3000 kW 7500 kW 3750 kW 6000 kW ANSWER DOWNLOAD EXAMIANS APP
Power Systems The characteristic impedance of a transmission line is Directly proportional to its length. Inversely proportional to square root of its length. Independent of its length. Directly proportional to square root of its length. Directly proportional to its length. Inversely proportional to square root of its length. Independent of its length. Directly proportional to square root of its length. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 25 MVA, 11 kV alternator is supplying full load at a point of 0.75 lagging. Determine the percentage increase in earning capacity when it is operated at improved power factor of 0.96 lagging. None of above 28 %. 56 %. 14 %. None of above 28 %. 56 %. 14 %. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a thermal power plants, pressure in the working fluid cycle is developed by superheater. turbine. feed water pump. condenser. superheater. turbine. feed water pump. condenser. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A thermal power plant is being supplied with coal having much more ash content than that for which it was designed. Which of its following units needs major modifications Condenser. Ash handling unit. Pulversing unit. Cooling tower. Condenser. Ash handling unit. Pulversing unit. Cooling tower. ANSWER DOWNLOAD EXAMIANS APP