Power Systems In nuclear power plants which material is/are used as coolant? beryllium All of these liquid sodium graphite beryllium All of these liquid sodium graphite ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following relays is/are unit protection relays? over current relays both 1 and 2 Buccholz relays Differential relays over current relays both 1 and 2 Buccholz relays Differential relays ANSWER DOWNLOAD EXAMIANS APP
Power Systems To reduce the radio interference which line is/are transposed? either 1 or 2 Both power and telecommunication lines Power line None of these either 1 or 2 Both power and telecommunication lines Power line None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a steam power plant, the feed water coming to the economizer is heated plant the feed water coming to the economizer is heated using HP steam. direct heat in the furnace. flue gas. LP steam. HP steam. direct heat in the furnace. flue gas. LP steam. ANSWER DOWNLOAD EXAMIANS APP
Power Systems To protect the power transformer ( Y-Y with neutral grounded) against fault, which type of connection do the current transformers have? Y-Y connection Δ-Δ connection Y-Δ connection Δ-Y connection Y-Y connection Δ-Δ connection Y-Δ connection Δ-Y connection ANSWER DOWNLOAD EXAMIANS APP
Power Systems Four identical alternators each are rated for 20 MVA, 11 KV having a subtransient reactance of 16% are working in parallel. The short circuit level at the busbar is 100 MVA 500 MVA 125 MVA 400 MVA 100 MVA 500 MVA 125 MVA 400 MVA ANSWER DOWNLOAD EXAMIANS APP
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