Power Systems The Gauss Seidel load flow method has following disadvantages. Which of the following statement is wrong? Unreliable convergence Choice of slack bus affects the convergence A good initial guess for voltages is essential for convergence Slow convergence Unreliable convergence Choice of slack bus affects the convergence A good initial guess for voltages is essential for convergence Slow convergence ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two insulator discs of identical capacitance value C make up a string for a 22 kV, 50 Hz, single phase overhead line insulation system. If pin to earth capacitance is also C, then find the string efficiency? 75% 50% 90% 86%% 75% 50% 90% 86%% ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the desirable properties of a insulator material? High ratio of puncture strength to flash over. Both 1 and 2 Low ratio of puncture strength to flash over. High relative permittivity High ratio of puncture strength to flash over. Both 1 and 2 Low ratio of puncture strength to flash over. High relative permittivity ANSWER DOWNLOAD EXAMIANS APP
Power Systems Half life is defined as the time required for full of atoms in a specimen disintegrate. the time required to spiliting of a heavy nucleus. the time required for one half of isotope to decay. none of above. the time required for full of atoms in a specimen disintegrate. the time required to spiliting of a heavy nucleus. the time required for one half of isotope to decay. none of above. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For variable heads of near about but less than 30 meters, which type of turbine is used in hydro power station? Pelton Francis Kaplan None of these Pelton Francis Kaplan None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Maximum power transfer capability of transmission line can be increased by Parallel transmission lines Using bundled conductors Using series capacitance All of these Parallel transmission lines Using bundled conductors Using series capacitance All of these ANSWER DOWNLOAD EXAMIANS APP
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