Power Systems Which of the following statements is/are true? Corona is reduced by All of these increasing the distance between the conductor decreasing the supply frequency increasing the radius of the conductor All of these increasing the distance between the conductor decreasing the supply frequency increasing the radius of the conductor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Oxide film arrestor has which of the following properties? Installed at points of transmission line where daily visit is difficult. Does not require daily charging. It is expensive. Both A and B. Installed at points of transmission line where daily visit is difficult. Does not require daily charging. It is expensive. Both A and B. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Reflection coefficient of voltage is Rv 2Zl/(Zs + Zl) (Zs - Zl)/(Zs + Zl) 2Zs/(Zs + Zl) (Zl - Zs)/(Zs + Zl) 2Zl/(Zs + Zl) (Zs - Zl)/(Zs + Zl) 2Zs/(Zs + Zl) (Zl - Zs)/(Zs + Zl) ANSWER DOWNLOAD EXAMIANS APP
Power Systems In kaplan runner, the number of blades is generally of the order of 16 - 24. 3 - 6. 12 - 16. 1 - 2. 16 - 24. 3 - 6. 12 - 16. 1 - 2. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A Pelton wheel turbine having a rated speed of 300 rpm is connected to an alternator to produce power at 50 Hz. The number of poles required in the alternator is 20 8 4 10 20 8 4 10 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following rotor is used in thermal power plants? squirrel cage rotor either of these cylindrical rotor salient pole rotor squirrel cage rotor either of these cylindrical rotor salient pole rotor ANSWER DOWNLOAD EXAMIANS APP
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