Power Systems The advantage of hydro electric power station over thermal power station is the operation cost of hydro electric power station is low hydro electric station can be constructed at the place where the energy is required the initial cost of hydro electric power station is low hydro electric power station can supply the power throughout the year the operation cost of hydro electric power station is low hydro electric station can be constructed at the place where the energy is required the initial cost of hydro electric power station is low hydro electric power station can supply the power throughout the year ANSWER DOWNLOAD EXAMIANS APP
Power Systems The charging current of a 400 kV line is more than that of a 220 kV line of the same length? False either 1 or 2 None of these True False either 1 or 2 None of these True ANSWER DOWNLOAD EXAMIANS APP
Power Systems On which one of the following cycles does a modern steam power plant work? Otto cycle Rankine cycle Bell-Coleman cycle Carnot cycle Otto cycle Rankine cycle Bell-Coleman cycle Carnot cycle ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following represents the sag(S) of a transmission line? S = wl²/16T S = wl²/8T S = wl²/4T S = wl²/2T S = wl²/16T S = wl²/8T S = wl²/4T S = wl²/2T ANSWER DOWNLOAD EXAMIANS APP
Power Systems Consider a three phase, 50 Hz, 11 kV distribution system. Each of the conductors is suspended by an insulator string having two identical porcelain insulators. The self capacitance of the insulators is 5 times the shunt capacitance between the link and ground. Find the voltage across the two insulators V1 and V2? (V1 = Voltage of disc nearest to the conductor) V1 = 2.89 kV and V2 = 3.46 kV V1 = 5 kV and V2 = 6 kV V1 = 6 kV and V2 = 5 kV V1 = 3.46 kV and V2 = 2.89 kV V1 = 2.89 kV and V2 = 3.46 kV V1 = 5 kV and V2 = 6 kV V1 = 6 kV and V2 = 5 kV V1 = 3.46 kV and V2 = 2.89 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems For transmission line which one of the following relation is true? AD - BC = 1 AD - BC = 0 AD - BC = -1 AD + BC = 0 AD - BC = 1 AD - BC = 0 AD - BC = -1 AD + BC = 0 ANSWER DOWNLOAD EXAMIANS APP
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