Power Systems If power P available from a hydroelectric plant is given by the formula P = 9.81QH, where Q is the flow rate through the turbine in l / s and H is the head in meters, then P will be unit of kJ / S. HP. kWh. W. kJ / S. HP. kWh. W. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The skin effect of conductor will increase when resistivity decrease diameter decrease All of these frequency decrease resistivity decrease diameter decrease All of these frequency decrease ANSWER DOWNLOAD EXAMIANS APP
Power Systems The ABCD constants of a 3-phase transmission line are A = D = 0.8∠1°, B = 170∠85° Ω , C = 0.002∠90.4° ℧. The sending end voltage is 400 kV. The receiving end voltage under no load condition is 600 kV 500 kV 400 kV 350 kV 600 kV 500 kV 400 kV 350 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true regarding HVDC? HVDC can utilize earth for its return path All of these There is no skin effect in dc line Corona loss is very much reduced in the dc line HVDC can utilize earth for its return path All of these There is no skin effect in dc line Corona loss is very much reduced in the dc line ANSWER DOWNLOAD EXAMIANS APP
Power Systems Find the characteristic impedance of a transmission line, if impedance is 16 Ω and admittance is 0.1 m℧? 160 Ω 200 Ω 320 Ω 400 Ω 160 Ω 200 Ω 320 Ω 400 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems The specific speed ( NS ) of turbine is given by N√( P ) / H2/3. N√( P ) / H1.25. none of these. P√( N ) / H3/2. N√( P ) / H2/3. N√( P ) / H1.25. none of these. P√( N ) / H3/2. ANSWER DOWNLOAD EXAMIANS APP
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