Compressors, Gas Turbines and Jet Engines The work-done on a compressor will be minimum if air is taken from A source of high temperature air The atmosphere A source of low temperature air A source at 0° C A source of high temperature air The atmosphere A source of low temperature air A source at 0° C ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The thermal efficiency of a simple gas turbine for a given turbine inlet temperature with increase in pressure ratio Increases Decreases First increases and then decreases First decreases and then increases Increases Decreases First increases and then decreases First decreases and then increases ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of the discharge pressure to the inlet pressure of air is called Compression ratio Volumetric efficiency Compressor efficiency Expansion ratio Compression ratio Volumetric efficiency Compressor efficiency Expansion ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The power available for takeoff and climb in case of turbojet engine as compared to reciprocating engine is Less May be less or more depending on ambient conditions Same More Less May be less or more depending on ambient conditions Same More ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In jet propulsion power unit, the inlet duct of diverging shape is used in order to Collect more air Provide robust structure Convert kinetic energy of air into pressure energy Beautify the shape Collect more air Provide robust structure Convert kinetic energy of air into pressure energy Beautify the shape ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The maximum compression ratio in an actual single stage axial flow compressor is of the order of 0.048611111111111 0.045138888888889 0.043055555555556 0.00070833333333333 0.048611111111111 0.045138888888889 0.043055555555556 0.00070833333333333 ANSWER DOWNLOAD EXAMIANS APP
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