Power Systems The voltage and current instantaneous values are given as 5 sin (ωt + 30°) pu and 2 sin (ωt - 15°) pu respectively. Find the per unit active power? 5.353 pu 5 pu 3.535 pu 7 pu 5.353 pu 5 pu 3.535 pu 7 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following relays are used in protection of medium transmission lines? Admittance relays Mho relays any of the above Impedance relays Admittance relays Mho relays any of the above Impedance relays ANSWER DOWNLOAD EXAMIANS APP
Power Systems The thermal efficiency of BWR is None of these greater than that of PWR. equal to that of PWR. less than that of PWR. None of these greater than that of PWR. equal to that of PWR. less than that of PWR. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following will take least time in starting from cold condition to full load operation Thermal power plant. Gas turbine plant. Hydro electric power plant. Nuclear power plant. Thermal power plant. Gas turbine plant. Hydro electric power plant. Nuclear power plant. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Normally Z bus matrix is a full matrix unit matrix null matrix sparse matrix full matrix unit matrix null matrix sparse matrix ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the desirable properties of a insulator material? Low ratio of puncture strength to flash over. High ratio of puncture strength to flash over. Both 1 and 2 High relative permittivity Low ratio of puncture strength to flash over. High ratio of puncture strength to flash over. Both 1 and 2 High relative permittivity ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS