Compressors, Gas Turbines and Jet Engines The ratio of the discharge pressure to the inlet pressure of air is called Volumetric efficiency Compressor efficiency Compression ratio Expansion ratio Volumetric efficiency Compressor efficiency Compression ratio Expansion ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The pressure and temperature conditions of air at the suction of compressor are Slightly less than atmospheric Slightly more than atmospheric Pressure slightly less than atmospheric and temperature slightly more than atmospheric Atmospheric Slightly less than atmospheric Slightly more than atmospheric Pressure slightly less than atmospheric and temperature slightly more than atmospheric Atmospheric ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a jet propulsion unit, the products of combustion after passing through the gas turbine are discharged into Discharge nozzle Vacuum Atmosphere Back to the compressor Discharge nozzle Vacuum Atmosphere Back to the compressor ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a single stage, single acting reciprocating air compressor, without clearance, the work-done on the air during isentropic compression is ________ the heat required to raise the temperature of air from Tâ to Tâ at a constant pressure. None of these Greater than Equal to Less than None of these Greater than Equal to Less than ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In gas turbines, high thermal efficiency is obtained in Closed cycle & Open cycle Open cycle Closed/open depending on other considerations Closed cycle Closed cycle & Open cycle Open cycle Closed/open depending on other considerations Closed cycle ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines High air-fuel ratio is used in gas turbines To increase the efficiency To reduce the exit temperature To save fuel To increase the output To increase the efficiency To reduce the exit temperature To save fuel To increase the output ANSWER DOWNLOAD EXAMIANS APP