Power Systems The annual depreciation of hydro power plant is about 0.5 - 1.5 %. 20 - 25 %. 10 - 15 %. 15 - 20 %. 0.5 - 1.5 %. 20 - 25 %. 10 - 15 %. 15 - 20 %. 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 12.5 A 10 A 15 A 6.25 A 12.5 A 10 A 15 A 6.25 A ANSWER DOWNLOAD EXAMIANS APP
Power Systems The insulation resistance of the 20 km long underground cable is 8 MΩ. Other things being same, the insulation resistance of 10 km long cable will be 32 MΩ 8 MΩ 16 MΩ 4 MΩ 32 MΩ 8 MΩ 16 MΩ 4 MΩ ANSWER DOWNLOAD EXAMIANS APP
Power Systems A cable has the following characteristics, L = 0.201 µH/m and C = 196.2 pF/m. The velocity of wave propagation through cable is 32 m/s 159.24 m/s 159.24 m/µs 0.0312 m/s 32 m/s 159.24 m/s 159.24 m/µs 0.0312 m/s ANSWER DOWNLOAD EXAMIANS APP
Power Systems A diesel power station has fuel consumption of 0.28 Kg per kWh. The calorific value of fuel is being 10000 KCal / kg. Determine the overall efficiency 40 %. 30.26 %. 40.85 %. 30.7 %. 40 %. 30.26 %. 40.85 %. 30.7 %. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The charging reactance of 50 km transmission line is 1500 Ω. What is the charging reactance for 100 km length of line? 750 Ω 3000 Ω 1000 Ω 1500 Ω 750 Ω 3000 Ω 1000 Ω 1500 Ω ANSWER DOWNLOAD EXAMIANS APP