Power Systems The water from a catchment is 60*106 cu m annually and hydro station has head of 40 m. Assuming ideal generator and turbine, the power that can be theoretically generated is 250 kW 500 kW 750 kW 300 kW 250 kW 500 kW 750 kW 300 kW ANSWER DOWNLOAD EXAMIANS APP
Power Systems A three phase, 33 kV oil circuit breaker is rated 1200 A, the symmetrical breaking capacity is 2000 MVA, 3 secs. Then the making capacity is 5100 MVA. 5200 MVA. 5000 MVA. 5500 MVA. 5100 MVA. 5200 MVA. 5000 MVA. 5500 MVA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Plug setting of a relay can be altered by varying adjustable back up stop. no. of ampere-turns. none of these. air gap of magnetic path. adjustable back up stop. no. of ampere-turns. none of these. air gap of magnetic path. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Gas turbine power plants for maximum efficient may have Heat exchangers. Reheating. Multistage compression. All of above. Heat exchangers. Reheating. Multistage compression. All of above. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Per unit of any quantity is defined as base value of quantity /actual value of quantity in different units actual value of quantity /base value of quantity in different units actual value of quantity /base value of quantity in same units base value of quantity /actual value of quantity in same units base value of quantity /actual value of quantity in different units actual value of quantity /base value of quantity in different units actual value of quantity /base value of quantity in same units base value of quantity /actual value of quantity in same units ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a short circuit test circuit breaker, time to reach the peak re-striking voltage 60 microsecond & the peak re-striking voltage 120 kV. Determine average RRRV (Rate of rise re-striking voltage)? 3 × 106 kV / sec. 1 × 106 kV / sec. 3.5 × 106 kV / sec. 2 × 106 kV / sec. 3 × 106 kV / sec. 1 × 106 kV / sec. 3.5 × 106 kV / sec. 2 × 106 kV / sec. ANSWER DOWNLOAD EXAMIANS APP
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