Power Systems A string insulator has 4 units. The voltage across the bottom most unit is 33.33% of total voltage. Its string efficiency is 75% 66.66% 25% 33.33% 75% 66.66% 25% 33.33% ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mho relay is used for protection of none of these. short lines. long lines. medium lines. none of these. short lines. long lines. medium lines. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Proximity effect depends on frequency distance between the conductors relative permeability All of these frequency distance between the conductors relative permeability All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is true? Corona loss increases with decrease in conductor size and decrease in supply frequency increase in conductor size and decrease in supply frequency increase in conductor size and increase in supply frequency decrease in conductor size and increase in supply frequency decrease in conductor size and decrease in supply frequency increase in conductor size and decrease in supply frequency increase in conductor size and increase in supply frequency decrease in conductor size and increase in supply frequency ANSWER DOWNLOAD EXAMIANS APP
Power Systems The equation of area control error(ACE) is ACE = ΔPtie - 1/b.Δf ACE = ΔPtie + b.Δf ACE = ΔPtie +1/ b.Δf ACE = ΔPtie - b.Δf ACE = ΔPtie - 1/b.Δf ACE = ΔPtie + b.Δf ACE = ΔPtie +1/ b.Δf ACE = ΔPtie - b.Δf 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 %. 74.56 %. 79.33 %. 80.25 %. 78.96 %. 74.56 %. 79.33 %. 80.25 %. ANSWER DOWNLOAD EXAMIANS APP
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