Power Systems Lightning arresters are used for All of these protection of equipment from short circuits protection of equipment from open circuits protection of equipment from external lightning All of these protection of equipment from short circuits protection of equipment from open circuits protection of equipment from external lightning ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 4*4 Y bus matrix the number of non zero elements are 12. Find the sparsity of the system? 0.25 1 0.5 0.75 0.25 1 0.5 0.75 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu? 1.375 pu 3.975 pu 2.4 pu 0.2 pu 1.375 pu 3.975 pu 2.4 pu 0.2 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems In which of the following frequency control method tie line may be overloaded? All of these flat tie line control flat frequency control parallel frequency All of these flat tie line control flat frequency control parallel frequency ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following decides the insulation level of 400 kV, EHV line? switching over voltage radio interference lighting voltage skin effect switching over voltage radio interference lighting voltage skin effect ANSWER DOWNLOAD EXAMIANS APP
Power Systems Deflectors are provided in propeller turbine. Francis turbine. Pelton wheel. Kaplan turbine. propeller turbine. Francis turbine. Pelton wheel. Kaplan turbine. ANSWER DOWNLOAD EXAMIANS APP
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