Power Systems The characteristic impedance of a transmission line is Directly proportional to square root of its length. Directly proportional to its length. Inversely proportional to square root of its length. Independent of its length. Directly proportional to square root of its length. Directly proportional to its length. Inversely proportional to square root of its length. Independent of its length. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Power system network has a total power of 5000 MW at 50 Hz supplying to the different consumers. Frequency is varying at 1.5% per change of 2% load. Assume R =0.004 Hz/MW. Find the steady state frequency deviation if a sudden loss of 200 MW occur due to tripping of one of the transmission line? 50 Hz -0.52 Hz 0.52 Hz 0.48 Hz 50 Hz -0.52 Hz 0.52 Hz 0.48 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems In nuclear chain fission reaction each neutron causing fission produces less than one new neutron. at least one new neutron. one new neutron. no new neutron. less than one new neutron. at least one new neutron. one new neutron. no new neutron. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In transmission lines distribution constants are resistance inductance and resistance both 1 and 2 inductance and capacitance resistance inductance and resistance both 1 and 2 inductance and capacitance ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following relays is/are unit protection relays? over current relays Buccholz relays both 1 and 2 Differential relays over current relays Buccholz relays both 1 and 2 Differential relays ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following will take least time in starting from cold condition to full load operation Hydro electric power plant. Gas turbine plant. Thermal power plant. Nuclear power plant. Hydro electric power plant. Gas turbine plant. Thermal power plant. Nuclear power plant. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS