Power Systems Which of the following represents the transmission or reflection coefficient of voltage Tv? (Zl = Surge impedance of load, Zs = Surge impedance of line) 2Zl/(Zs + Zl) 2Zs/(Zs + Zl) (Zl - Zs)/(Zs + Zl) (Zs - Zl)/(Zs + Zl) 2Zl/(Zs + Zl) 2Zs/(Zs + Zl) (Zl - Zs)/(Zs + Zl) (Zs - Zl)/(Zs + Zl) ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the diameter of the conductor is increased the inductance is decreased the inductance is increased no change in inductance and resistance the resistance is increased the inductance is decreased the inductance is increased no change in inductance and resistance the resistance is increased ANSWER DOWNLOAD EXAMIANS APP
Power Systems Zero voltage regulation is possible only for lagging power factor leading power factor All of these unity power factor lagging power factor leading power factor All of these unity power factor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statement is/are true regarding infinite line? It maintains the constant voltage It has infinite voltage both 2 and 3 It has infinite length It maintains the constant voltage It has infinite voltage both 2 and 3 It has infinite length ANSWER DOWNLOAD EXAMIANS APP
Power Systems In coal fired thermal power stations, what are the electrostatic precipitators used for? To remove dust particles setting on the bus bar conductors in the station switch yard To keep the air heaters clean To collect the dust particles from the flue gases All of these To remove dust particles setting on the bus bar conductors in the station switch yard To keep the air heaters clean To collect the dust particles from the flue gases All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems The skin effect of conductor will increase when frequency decrease resistivity decrease diameter decrease All of these frequency decrease resistivity decrease diameter decrease All of these ANSWER DOWNLOAD EXAMIANS APP
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