Power Systems Advantages of higher transmission voltage is/are Power transfer capability of the transmission line is increased Area of cross section and volume of the conductor is reduced Transmission line losses are reduced All of these Power transfer capability of the transmission line is increased Area of cross section and volume of the conductor is reduced Transmission line losses are reduced All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 220 kV system, the inductance and capacitance up to the circuit breaker location are 25 mH and 0.025 µF respectively. The value of resistor required to be connected across the breaker contacts which will give no transient oscillations, is 25 Ω 1000 Ω 250 Ω 500 Ω 25 Ω 1000 Ω 250 Ω 500 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mercury is choice with steam in binary vapor cycle because higher saturation temperature than other fluids. higher critical temperature and pressure. relative low vaporization pressure. all of above. higher saturation temperature than other fluids. higher critical temperature and pressure. relative low vaporization pressure. all of above. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following power plants normally operage at high speeds Diesel engine. Thermal. Hydro electric. Petrol engine. Diesel engine. Thermal. Hydro electric. Petrol engine. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In which of the following frequency control method tie line may be overloaded? flat frequency control All of these flat tie line control parallel frequency flat frequency control All of these flat tie line control parallel frequency ANSWER DOWNLOAD EXAMIANS APP
Power Systems a 50 Hz, 3-phase synchronous generator has inductance per phase of 15 mH. The capacitance of the generator and circuit breaker is 0.002 µF. What is its natural frequency? 2.9 kHz 29 kHz 29 MHz 290 kHz 2.9 kHz 29 kHz 29 MHz 290 kHz ANSWER DOWNLOAD EXAMIANS APP
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