Power Systems Advantages of pumped storage plants is/are operating time is minimum most economical as a peak load supply plant used as load frequency control All of these operating time is minimum most economical as a peak load supply plant used as load frequency control All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a nuclear reactor, chain reactor is controlled by introducing cadmium rods. graphite rods. brass rods. iron rods. cadmium rods. graphite rods. brass rods. iron rods. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Find the number of insulator discs required in string insulator, if operating voltage is 220 kV and maximum voltage of each disc is 11 kV? 13 21 20 10 13 21 20 10 ANSWER DOWNLOAD EXAMIANS APP
Power Systems For a lossy transmission line, the characteristic impedance does not depend on The operating frequency of the line. The load terminating the line. The conductivity of conductors. The permittivity of the dielectric separating the conductor. The operating frequency of the line. The load terminating the line. The conductivity of conductors. The permittivity of the dielectric separating the conductor. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 50 Hz, 17.32 kV generator is connected to a power system. The system reactance and capacitance per phase are 10 mH and 0.2 mF respectively. What is the maximum voltage across the contacts of the circuit breaker at an instant when it passes through zero? 30.28 kV 28.28 kV 31.28 kV 29.28 kV 30.28 kV 28.28 kV 31.28 kV 29.28 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems The SWR on a lossless transmission line of the characteristic impedance 100 ohm is 3. The line is the terminated by A resistance of 100/3 ohm. A resistance of j100/3 ohm. A resistance of 100 ohm. A resistance of j300 ohm. A resistance of 100/3 ohm. A resistance of j100/3 ohm. A resistance of 100 ohm. A resistance of j300 ohm. ANSWER DOWNLOAD EXAMIANS APP
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