Power Systems Operating cost of thermal power station is less than that of hydroelectric power plant. less than that of nuclear power plant. less than that of diesel power plant. is the same as that of nuclear power plant. less than that of hydroelectric power plant. less than that of nuclear power plant. less than that of diesel power plant. is the same as that of nuclear power plant. 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? 0.48 Hz 50 Hz 0.52 Hz -0.52 Hz 0.48 Hz 50 Hz 0.52 Hz -0.52 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems For a lossy transmission line, the characteristic impedance does not depend on The load terminating the line. The operating frequency of the line. The conductivity of conductors. The permittivity of the dielectric separating the conductor. The load terminating the line. The operating frequency of the line. The conductivity of conductors. The permittivity of the dielectric separating the conductor. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Efficiency of thermal power plant can be taken as efficiency of thermal cycle. generator efficiency. product of efficiencies of all stages. turbine efficiency. efficiency of thermal cycle. generator efficiency. product of efficiencies of all stages. turbine efficiency. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Highest pressure generating pump inside the thermal plant is low pressure heater high pressure heater boiler feed pump All of these low pressure heater high pressure heater boiler feed pump All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true? In case of parallel transmission lines stability increases fault current reduces both 1 and 3 fault current increases stability increases fault current reduces both 1 and 3 fault current increases ANSWER DOWNLOAD EXAMIANS APP
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