Power Systems In thermal power stations, economiser will reduce the heat increase the thermal efficiency both 2 and 3 reduce the thermal efficiency reduce the heat increase the thermal efficiency both 2 and 3 reduce the thermal efficiency ANSWER DOWNLOAD EXAMIANS APP
Power Systems If in a line, resistance and reactance are found to be equal and regulation is zero, then load will have 0.707 leading power factor zero power factor 0.707 lagging power factor unity power factor 0.707 leading power factor zero power factor 0.707 lagging power factor unity power factor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Objectives of power system is/are Cost of electrical energy per KWh is to be minimum Rated voltage and frequency has to be supplied to the consumers nether 1 nor 2 both 1 and 2 Cost of electrical energy per KWh is to be minimum Rated voltage and frequency has to be supplied to the consumers nether 1 nor 2 both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The radiation shield for a nuclear power reactor for biological safety is provided by having the reactor encased thick metal wall. isolated from outside word with strong magnetic field. immersed in water pool. encased by thick concrete wall. encased thick metal wall. isolated from outside word with strong magnetic field. immersed in water pool. encased by thick concrete wall. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The corona loss on a particular system at 50 Hz is 1 kW/km per phase. What is the corona loss at 60 Hz in kW/km per phase? 1.25 0.89 1 1.13 1.25 0.89 1 1.13 ANSWER DOWNLOAD EXAMIANS APP
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) 2Zs/(Zs + Zl) (Zs - Zl)/(Zs + Zl) 2Zl/(Zs + Zl) (Zl - Zs)/(Zs + Zl) 2Zs/(Zs + Zl) (Zs - Zl)/(Zs + Zl) 2Zl/(Zs + Zl) (Zl - Zs)/(Zs + Zl) ANSWER DOWNLOAD EXAMIANS APP
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