Power Systems A thermal protection switch is used to provide protection against temperature. short circuit. overload. over voltage. temperature. short circuit. overload. over voltage. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A string type insulator has three units with self capacitance C and ground capacitance of 0.2 C having a string efficiency of 78% 80% 82% 76% 78% 80% 82% 76% ANSWER DOWNLOAD EXAMIANS APP
Power Systems An over current relay, having a current setting of 125% connected to a supply circuit through a current transformer of ratio 400/5. The pick up value is 15 A 12.5 A 10 A 6.25 A 15 A 12.5 A 10 A 6.25 A ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the advantages of synchronous phase modifier over the shunt compensation? initial cost is low smooth voltage regulation is possible by controlling excitation both 1 and 2 single unit can be used as both capacitance and inductor by adjusting the excitation initial cost is low smooth voltage regulation is possible by controlling excitation both 1 and 2 single unit can be used as both capacitance and inductor by adjusting the excitation ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has a surge impedance of 400 Ω is connected with the cable having surge impedance of 40 Ω, a surge magnitude of 100 kV is travelling from the transmission line towards the cable. Find the incident current? 100 A 200 A 2500 A 250 A 100 A 200 A 2500 A 250 A ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following statement are false In a nuclear reactor, multiplication factor is kept almost equal to one. Nuclear power plants are used as peak load plants only. In nuclear power plants, chain reaction is controlled by cadmium rods. A thermal reactor needs a moderator material. In a nuclear reactor, multiplication factor is kept almost equal to one. Nuclear power plants are used as peak load plants only. In nuclear power plants, chain reaction is controlled by cadmium rods. A thermal reactor needs a moderator material. ANSWER DOWNLOAD EXAMIANS APP
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