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 0 Ω 200 Ω 800 Ω 400 Ω 0 Ω 200 Ω 800 Ω 400 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Most commonly used material for insulator is mica porcelain All of these glass mica porcelain All of these glass ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a nuclear reactor, chain reactor is controlled by introducing graphite rods. iron rods. brass rods. cadmium rods. graphite rods. iron rods. brass rods. cadmium rods. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Where the voltage is high and current to be interrupted is low, Which of following the breaker is preferable? Air blast CB. Oil CB. Vacuum CB. Any of these. Air blast CB. Oil CB. Vacuum CB. Any of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For variable heads of near about but less than 30 m, which type of turbines is used hydro power plant Pelton. None of above. Kaplan. Francis. Pelton. None of above. Kaplan. Francis. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Location of a surge tank, in an hydro electric power station is near tail race. reservoir. dam. turbine. tail race. reservoir. dam. turbine. ANSWER DOWNLOAD EXAMIANS APP
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