Compressors, Gas Turbines and Jet Engines Adiabatic compression is one in which 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 Temperature during compression remains constant No heat leaves or enters the compressor cylinder during compression Temperature rise follows a linear relationship ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A rocket engine uses __________ for the combustion of its fuel. Surrounding air Its own oxygen Compressed atmospheric air None of these Surrounding air Its own oxygen Compressed atmospheric air None of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Which of the following statement is correct as regard to centrifugal compressors? The maximum efficiency is higher than multistage axial flow compressors The static pressure of air in the impeller increases in order to provide centripetal force on the air The impeller rotates at high speeds The flow of air is parallel to the axis of the compressor The maximum efficiency is higher than multistage axial flow compressors The static pressure of air in the impeller increases in order to provide centripetal force on the air The impeller rotates at high speeds The flow of air is parallel to the axis of the compressor ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For slow speed large capacity compressor, following type of valve will be best suited Any of the above Mechanical valve of the Corliss, sleeve, rotary or semi rotary type Disc or feather type Poppet valve Any of the above Mechanical valve of the Corliss, sleeve, rotary or semi rotary type Disc or feather type Poppet valve ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The efficiency of a jet engine is higher at High altitudes High speeds Low speeds Low altitudes High altitudes High speeds Low speeds Low altitudes ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of work done per cycle to the swept volume in case of compressor is called Compression ratio Compression index Mean effective pressure Compressor efficiency Compression ratio Compression index Mean effective pressure Compressor efficiency ANSWER DOWNLOAD EXAMIANS APP
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