Power Systems To prevent maloperation of deferentially connected relay while energizing a transformer, the relay restraining coil is biased with 2nd harmonic current. 3rd harmonic current. 7th harmonic current. 5th harmonic current. 2nd harmonic current. 3rd harmonic current. 7th harmonic current. 5th harmonic current. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Skin effect depends on All of these conductivity frequency relative permeability All of these conductivity frequency relative permeability 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 80.25 %. 79.33 %. 74.56 %. 78.96 %. 80.25 %. 79.33 %. 74.56 %. 78.96 %. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In which power plant, the thermal efficiency is quite low Nuclear power plant. Hydro power plant. Diesel power plant. Steam power plant. Nuclear power plant. Hydro power plant. Diesel power plant. Steam power plant. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The flow duration curve at a given head of a hydroelectric plant is used to determine total power available at the site. load factory at the plant. total units of energy available. diversity factor for the plant. total power available at the site. load factory at the plant. total units of energy available. diversity factor for the plant. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The main objectives of power system is/are All of these Flexible power has to be available. Reliable power has to be available Cost of electrical energy per KWh is to be minimum All of these Flexible power has to be available. Reliable power has to be available Cost of electrical energy per KWh is to be minimum ANSWER DOWNLOAD EXAMIANS APP
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