Power Systems For accurate load flow calculations on large power systems, the best method is All of these N-R method Decoupled method G-S method All of these N-R method Decoupled method G-S method ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of per unit system is/are All of these It has units for all quantities Need of transformation ratio No units for any quantity All of these It has units for all quantities Need of transformation ratio No units for any quantity ANSWER DOWNLOAD EXAMIANS APP
Power Systems As the frequency of the system is increased, the charging MVAR decreases None of these remains unaffected increases decreases None of these remains unaffected increases ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3 - Φ, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 s. The symmetrical breaking current is 35 kA. 104.8 kA. 1200 A. 3600 A. 35 kA. 104.8 kA. 1200 A. 3600 A. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The characteristic impedance of a transmission on line is Directly proportional to its length. Inversely proportional to its length. Directly proportional to square root of its length. Independent of its length. Directly proportional to its length. Inversely proportional to its length. Directly proportional to square root of its length. Independent of its length. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A hydro electric generating station is supplied from a reservoir of capacity 5 × 10 − 6 cubic meters at a head of 200 meters. Find the total energy available in KWh if the overall efficiency is 75 % 2.044 × 106 kWh. 5 × 106 kWh. 4.06 × 106 kWh. 3 × 106 kWh. 2.044 × 106 kWh. 5 × 106 kWh. 4.06 × 106 kWh. 3 × 106 kWh. ANSWER DOWNLOAD EXAMIANS APP
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