Power Systems In transmission lines distribution constants are inductance and capacitance resistance both 1 and 2 inductance and resistance inductance and capacitance resistance both 1 and 2 inductance and resistance ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following relays are used in protection of medium transmission lines? Mho relays Impedance relays any of the above Admittance relays Mho relays Impedance relays any of the above Admittance relays ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following contributes to the Rankine cycle efficiency improvement in a thermal power plant Use of high pressure. Reheat of steam an intermediate stages. All of these Use of steam for heating of boiler feed water. Use of high pressure. Reheat of steam an intermediate stages. All of these Use of steam for heating of boiler feed water. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is a reaction turbines Kaplan and Pelton turbine. Pelton turbine and Francis turbine. Francis turbine and Kaplan turbine. None of these. Kaplan and Pelton turbine. Pelton turbine and Francis turbine. Francis turbine and Kaplan turbine. None of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has a surge impedance of 400 Ω is connected with the cable having surge impedance of 40 Ω, a surge magnitude of 100 kV is travelling from the transmission line towards the cable. Find the reflected voltage? 18.18 kV 81.82 kV -81.82 kV -18.18 kV 18.18 kV 81.82 kV -81.82 kV -18.18 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems The inertia constant of 100 MVA, 50 Hz, 4 pole generator is 10 MJ/MVA. If the mechanical input to the machine is suddenly raised from 50 MW to 75 MW, the rotor acceleration will be equal to 125 electrical degrees/s² 22.5 electrical degrees/s² 12.5 electrical degrees/s² 225 electrical degrees/s² 125 electrical degrees/s² 22.5 electrical degrees/s² 12.5 electrical degrees/s² 225 electrical degrees/s² ANSWER DOWNLOAD EXAMIANS APP
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