Power Systems Which of the following statements is true? Corona loss increases with decrease in conductor size and increase in supply frequency increase in conductor size and increase in supply frequency decrease in conductor size and decrease in supply frequency increase in conductor size and decrease in supply frequency decrease in conductor size and increase in supply frequency increase in conductor size and increase in supply frequency decrease in conductor size and decrease in supply frequency increase in conductor size and decrease in supply frequency ANSWER DOWNLOAD EXAMIANS APP
Power Systems Maximum efficiency of modern coal fired steam raising thermal power plants is restricted to about 035 (a low value), mainly because of high energy loss from turbine exhaust to condenser. low steam turbine mechanical efficiency. high energy loss in boiler. low alternative efficiency. high energy loss from turbine exhaust to condenser. low steam turbine mechanical efficiency. high energy loss in boiler. low alternative efficiency. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For variable heads of near about but less than 30 meters, which type of turbine is used in hydro power station? Kaplan Francis Pelton None of these Kaplan Francis Pelton None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following faults is/are treated as external faults? Failure of prime mover of the generator All of these Over voltage Failure of excitation Failure of prime mover of the generator All of these Over voltage Failure of excitation ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which turbine is ideally suited to pumped storage plants Impeller. Pelton. Kaplan. Francis. Impeller. Pelton. Kaplan. Francis. ANSWER DOWNLOAD EXAMIANS APP
Power Systems What is the function of economiser in steam boilers improving thermal efficiency All of these collect ash particals cooling improving thermal efficiency All of these collect ash particals cooling ANSWER DOWNLOAD EXAMIANS APP
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