Power Systems The surge impedance of a 400 km long overhead transmission line is 420 Ω. For a 200 km length of the same line, the surge impedance will be 420 Ω 840 Ω 210 Ω 400 Ω 420 Ω 840 Ω 210 Ω 400 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following power plants needs highly skilled/qualified engineers for its operation Hydro Power Plant Thermal. Nuclear. Gas-turbine. Hydro Power Plant Thermal. Nuclear. Gas-turbine. ANSWER DOWNLOAD EXAMIANS APP
Power Systems What type of back up protection is used for alternators? Mho relay. IDMT relay. Buchholz relay. Impedance relay. Mho relay. IDMT relay. Buchholz relay. Impedance relay. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The most commonly used material for insulators of overhead lines is mica PVC glass porcelain mica PVC glass porcelain ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line is compensated with shunt capacitance Csh. If the uncompensated transmission line surge impedance is Zs, then find the new surge impedance Zn after shunt compensation? All of these √(1 + Kcsh)/Zs Zs/√(1 + Kcsh) Zs*√(1 + Kcsh) All of these √(1 + Kcsh)/Zs Zs/√(1 + Kcsh) Zs*√(1 + Kcsh) ANSWER DOWNLOAD EXAMIANS APP
Power Systems MCB stands for molded circuit breaker. minimum capacity breaker. maximum capacity breaker. miniature circuit breaker. molded circuit breaker. minimum capacity breaker. maximum capacity breaker. miniature circuit breaker. ANSWER DOWNLOAD EXAMIANS APP
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