Power Systems Which of the following statements is/are true regarding HVDC? Corona loss is very much reduced in the dc line There is no skin effect in dc line HVDC can utilize earth for its return path All of these Corona loss is very much reduced in the dc line There is no skin effect in dc line HVDC can utilize earth for its return path All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Lightning arresters are used for All of these protection of equipment from open circuits protection of equipment from external lightning protection of equipment from short circuits All of these protection of equipment from open circuits protection of equipment from external lightning protection of equipment from short circuits 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 Kaplan. Pelton. None of above. Francis. Kaplan. Pelton. None of above. Francis. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power generating station has a maximum demand of 1000 MW. The annual load factor is 75% and plant capacity factor is 60%. Calculate the reserve capacity? 750 MW 500 MW 250 MW 1250 MW 750 MW 500 MW 250 MW 1250 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following produces the radio interference in communication lines? both 1 and 2 None of these electro static induction electro magnetic induction both 1 and 2 None of these electro static induction electro magnetic induction ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two identical synchronous machines having same inertia constant are connected in parallel and swinging together. The effective inertia constant is 4 MJ/MVA. Then each machine has inertia constant of 8 MJ/MVA 16 MJ/MVA 4 MJ/MVA 2 MJ/MVA 8 MJ/MVA 16 MJ/MVA 4 MJ/MVA 2 MJ/MVA ANSWER DOWNLOAD EXAMIANS APP
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