Power Systems A transmission line has a surge impedance of 400 Ω for a length of the line of 200 km. If the length of line is increased to 400 km, then its surge impedance is 400 Ω 0 Ω 200 Ω 800 Ω 400 Ω 0 Ω 200 Ω 800 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Telecommunication lines are transposed to reduce the radio interference in communication lines All of these efficiency voltage level radio interference in communication lines All of these efficiency voltage level ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following power plants needs highly skilled/qualified engineers for its operation Thermal. Hydro Power Plant Nuclear. Gas-turbine. Thermal. Hydro Power Plant Nuclear. Gas-turbine. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following relays is/are unit protection relays? both 1 and 2 over current relays Differential relays Buccholz relays both 1 and 2 over current relays Differential relays Buccholz relays ANSWER DOWNLOAD EXAMIANS APP
Power Systems For 800 MJ stored energy in the rotor at synchronous speed, what is the inertia constant H for a 50 Hz, four pole turbo generator rated 100 MVA, 11 kV? 6 MJ/MVA 2 MJ/MVA 4 MJ/MVA 8 MJ/MVA 6 MJ/MVA 2 MJ/MVA 4 MJ/MVA 8 MJ/MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems Main bus bar protection scheme is /are none of these. fault bus protection. differential protection. both fault bus and differential protection. none of these. fault bus protection. differential protection. both fault bus and differential protection. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS