Power Systems The draft tube is provided to None of these increase the acting head on the water wheel. raise the water surface of the stream to create an artificial head. reduce the effect of water hammer. None of these increase the acting head on the water wheel. raise the water surface of the stream to create an artificial head. reduce the effect of water hammer. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Transmission lines are transposed to reduce skin effect proximity effect ferranti effect interference with neighbouring communication lines skin effect proximity effect ferranti effect interference with neighbouring communication lines 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 0.0312 m/s 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 ANSWER DOWNLOAD EXAMIANS APP
Power Systems What will be the thermal efficiency of a 240 V, 1000 W electric kettle if it brings 2 liters of water at 15° C to boiling point 15 Minutes 78.96 %. 80.25 %. 74.56 %. 79.33 %. 78.96 %. 80.25 %. 74.56 %. 79.33 %. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of pumped storage plants is/are most economical as a peak load supply plant All of these used as load frequency control operating time is minimum most economical as a peak load supply plant All of these used as load frequency control operating time is minimum ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 1-phase transmission line has an impedance (3+4j) Ω . Find the power factor of the load for achieving maximum and zero voltage regulation? 0.6 lag and 0.6 lead 0.8 lag and 0.6 lead 0.6 lag and 0.8 lead 0.8 lag and 0.8 lead 0.6 lag and 0.6 lead 0.8 lag and 0.6 lead 0.6 lag and 0.8 lead 0.8 lag and 0.8 lead ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS