Power Systems Which of the following relays are used in protection of medium transmission lines? Impedance relays Mho relays any of the above Admittance relays Impedance relays Mho relays any of the above Admittance relays ANSWER DOWNLOAD EXAMIANS APP
Power Systems A coal fired steam power station working at a plant factor of 80% has one 500 MW generating unit. If the heat content of coal is 2 kWh/kg, the overall plant efficiency is 40% and a train load of coal is 2000 metric tons, then the number of trains required daily for the plant is 10 2 6 16 10 2 6 16 ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the breakdown voltage of the insulator is high, the thickness of the insulator is it does not related to breakdown voltage None of these high less it does not related to breakdown voltage None of these high less ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the disadvantages of phase modifiers? It consumes both active and reactive power It requires more maintenance because of running equipment Initial cost of synchronous phase modifier is higher All of these It consumes both active and reactive power It requires more maintenance because of running equipment Initial cost of synchronous phase modifier is higher All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems The steam power plant efficiency can be improved by using large quantity of water. burning large amount of coal. decreasing the load on the plant. using high temperature and high pressure steam. using large quantity of water. burning large amount of coal. decreasing the load on the plant. using high temperature and high pressure steam. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For harnessing low variable water heads, the suitable hydraulic turbine with reaction and adjustable vanes runners is Kaplan Impeller Pelton Francis Kaplan Impeller Pelton Francis ANSWER DOWNLOAD EXAMIANS APP
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