Power Systems Which of the following circuit breakers produce least arc energy? Minimum oil CB. Plain oil CB. Air break CB. Air blast CB. Minimum oil CB. Plain oil CB. Air break CB. Air blast CB. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu? 2.4 pu 0.2 pu 1.375 pu 3.975 pu 2.4 pu 0.2 pu 1.375 pu 3.975 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Asynchronous tie line is a either 1 or 2 AC transmission line DC transmission line None of these either 1 or 2 AC transmission line DC transmission line None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems An hydro-graph indicates the average run off during the period. the discharge at any time during the period under consideration. All of these the maximum and minimum run off during the period. the average run off during the period. the discharge at any time during the period under consideration. All of these the maximum and minimum run off during the period. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which power plant cannot have single unit of 100 MW capacity Nuclear power plant. Steam power plant. Hydro electric power plant. Diesel engine plant. Nuclear power plant. Steam power plant. Hydro electric power plant. Diesel engine plant. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Alternate formation and breakage of bubbles are called surgfication. water hamming. cavitations. All of these surgfication. water hamming. cavitations. All of these ANSWER DOWNLOAD EXAMIANS APP
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