Power Systems A transmission line has a surge impedance of 400 Ω for a length of the line of 200 km. If the length of line is increased to 400 km, then its surge impedance is 800 Ω 200 Ω 0 Ω 400 Ω 800 Ω 200 Ω 0 Ω 400 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems The shape of the disc of an induction disc relay is elliptical. none of these. circular. spiral. elliptical. none of these. circular. spiral. 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? 2.4 pu 1.375 pu 0.2 pu 3.975 pu 2.4 pu 1.375 pu 0.2 pu 3.975 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Zero sequence currents can flow from a line into a transformer bank if the windings are in delta / star. delta / delta. star / grounded star. ground star / delta. delta / star. delta / delta. star / grounded star. ground star / delta. ANSWER DOWNLOAD EXAMIANS APP
Power Systems When a nuclear reaction is operating at constant power the multiplication factor is less than 1. 1. may be any of the above. greater than 1. less than 1. 1. may be any of the above. greater than 1. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following plants is/are base load plants run off river pump storage both 1 and 2 nuclear run off river pump storage both 1 and 2 nuclear ANSWER DOWNLOAD EXAMIANS APP
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