Power Systems In Francis turbine runner, the number blades is usually of the order of 3 - 6. 12 - 14. 6 - 8. 16 - 24. 3 - 6. 12 - 14. 6 - 8. 16 - 24. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 200 MVA alternator operated at no load at frequency of 50 Hz, it has inertia constant of 5 MWsec/MVA and governing system has a time delay of 0.6 sec. If the load of 50 MW is suddenly applied then find the frequency deviation during this time? 0.76 Hz -0.85 Hz 0.85 Hz -0.76 Hz 0.76 Hz -0.85 Hz 0.85 Hz -0.76 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems Binary vapor cycle are used for improving the plant efficiency. increasing the turbine efficiency. All of these improving the condenser performance. improving the plant efficiency. increasing the turbine efficiency. All of these improving the condenser performance. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a Gauss Seidel load flow method, the number of iterations may be reduced if the correction in voltage at each bus is multiplied by Acceleration factor Gauss constant Lagrange multiplier Blocking factor Acceleration factor Gauss constant Lagrange multiplier Blocking factor ANSWER DOWNLOAD EXAMIANS APP
Power Systems For variable heads of near about but less than 30 m, which type of turbines is used hydro power plant None of above. Kaplan. Francis. Pelton. None of above. Kaplan. Francis. Pelton. 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 = 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 V1 = 2.89 kV and V2 = 3.46 kV V1 = 5 kV and V2 = 6 kV ANSWER DOWNLOAD EXAMIANS APP
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