Power Systems Lightning arresters are made up of which material? any of the above silicon oxide silver copper any of the above silicon oxide silver copper ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following method is/are more reliable? Gauss-Siedel (GS) method All of these Fast Decoupled Load Flow (FDLF) method Newton Raphson (NR) method Gauss-Siedel (GS) method All of these Fast Decoupled Load Flow (FDLF) method Newton Raphson (NR) method ANSWER DOWNLOAD EXAMIANS APP
Power Systems The function of draft tube is reaction turbine is to all of above. increase flow rate of water. reduce water hammer. convert kinetic energy of water. all of above. increase flow rate of water. reduce water hammer. convert kinetic energy of water. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A string insulator has 4 units. The voltage across the bottom most unit is 33.33% of total voltage. Its string efficiency is 66.66% 75% 33.33% 25% 66.66% 75% 33.33% 25% ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 200 MVA alternator operated at no load at frequency of 50 Hz, it has inertia constant of 5 MWsec/MVA and governing system has a time delay of 0.6 sec. If the load of 50 MW is suddenly applied then find the frequency deviation during this time? 0.76 Hz -0.85 Hz -0.76 Hz 0.85 Hz 0.76 Hz -0.85 Hz -0.76 Hz 0.85 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems Skin effective is more in case of power lines communication lines None of these same in both cases power lines communication lines None of these same in both cases ANSWER DOWNLOAD EXAMIANS APP
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