Steam Boilers, Engines, Nozzles and Turbines Efficiency of Rankine cycle can be increased by Decreasing exhausts pressure Decreasing initial steam pressure and temperature Increasing the expansion ratio Increasing exhaust pressure Decreasing exhausts pressure Decreasing initial steam pressure and temperature Increasing the expansion ratio Increasing exhaust pressure ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Calorific value of coal is of the order of 200-400 kcal/ kg 800-1200 kcal/ kg 2000-4000 kcal/ kg 5000-8000 kcal/ kg 200-400 kcal/ kg 800-1200 kcal/ kg 2000-4000 kcal/ kg 5000-8000 kcal/ kg ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The pressure velocity compounded impulse turbine allows a bigger pressure drop and hence __________ numbers of stages are required. None of the listed here Less More Equal None of the listed here Less More Equal ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The compounding of turbines is done in order to Reduce speed of rotor Reduce exit losses All of these Improve efficiency Reduce speed of rotor Reduce exit losses All of these Improve efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of the clearance volume to the swept volume is called Clearance ratio Cut-off ratio Expansion ratio None of these Clearance ratio Cut-off ratio Expansion ratio None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines De-Laval turbines are mostly used Where low speeds are required For small power purposes and high speeds For small power purposes and low speeds For large power purposes Where low speeds are required For small power purposes and high speeds For small power purposes and low speeds For large power purposes ANSWER DOWNLOAD EXAMIANS APP
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