Compressors, Gas Turbines and Jet Engines Maximum delivery pressure is a rotary air compressor is of the order of 25 kg/cm² 6 kg/cm² 16 kg/cm² 10 kg/cm² 25 kg/cm² 6 kg/cm² 16 kg/cm² 10 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The volumetric efficiency of a compressor Decreases with decrease in compression ratio Increases with decrease in compression ratio Increases with increase in compression ratio Decreases with increase in compression ratio Decreases with decrease in compression ratio Increases with decrease in compression ratio Increases with increase in compression ratio Decreases with increase in compression ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Adiabatic compression is one in which Temperature during compression remains constant No heat leaves or enters the compressor cylinder during compression Temperature rise follows a linear relationship Work done is maximum Temperature during compression remains constant No heat leaves or enters the compressor cylinder during compression Temperature rise follows a linear relationship Work done is maximum ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The pressure ratio of an ideal vaned compressor with increase in mass flow rate First decreases and then increases Decreases Remain constant Increases First decreases and then increases Decreases Remain constant Increases ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Reheating in a gas turbine Increases the thermal efficiency Increases the compressor work Decreases the thermal efficiency Increases the turbine work Increases the thermal efficiency Increases the compressor work Decreases the thermal efficiency Increases the turbine work ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The overall isothermal efficiency of compressor is defined as the ratio of Work to compress air isothermally to work for actual compression Isothermal h.p. to the BHP of motor Power to drive compressor to isothermal h.p. Isothermal h.p. to adiabatic h.p. Work to compress air isothermally to work for actual compression Isothermal h.p. to the BHP of motor Power to drive compressor to isothermal h.p. Isothermal h.p. to adiabatic h.p. ANSWER DOWNLOAD EXAMIANS APP
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