Power Systems The surge impedance of a 400 km long overhead transmission line is 420 Ω. For a 200 km length of the same line, the surge impedance will be 840 Ω 420 Ω 400 Ω 210 Ω 840 Ω 420 Ω 400 Ω 210 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Half life is defined as the time required to spiliting of a heavy nucleus. the time required for one half of isotope to decay. none of above. the time required for full of atoms in a specimen disintegrate. the time required to spiliting of a heavy nucleus. the time required for one half of isotope to decay. none of above. the time required for full of atoms in a specimen disintegrate. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following grounding is not practically preferred for protection of equipments? reactance grounding resistance grounding isolated grounding All of these reactance grounding resistance grounding isolated grounding All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true? By increasing of temperature, both 1 and 2 sag increase tension decrease neither 1 nor 2 both 1 and 2 sag increase tension decrease neither 1 nor 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The insulation of modern EHV is designed based on corona. switching voltage. lightning voltage. RI. corona. switching voltage. lightning voltage. RI. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following contributes to the Rankine cycle efficiency improvement in a thermal power plant Reheat of steam an intermediate stages. Use of high pressure. Use of steam for heating of boiler feed water. All of these Reheat of steam an intermediate stages. Use of high pressure. Use of steam for heating of boiler feed water. All of these ANSWER DOWNLOAD EXAMIANS APP
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