Compressors, Gas Turbines and Jet Engines In a centrifugal compressor, an increase in speed at a given pressure ratio causes Increase in flow Decrease in flow Increase in flow and decrease in efficiency Increase in efficiency Increase in flow Decrease in flow Increase in flow and decrease in efficiency Increase in efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Phenomenon of choking in compressor means Increased inclination of chord with air steam Reducing mass flow rate with increase in pressure ratio Fixed mass flow rate regardless of pressure ratio No flow of air Increased inclination of chord with air steam Reducing mass flow rate with increase in pressure ratio Fixed mass flow rate regardless of pressure ratio No flow of air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Maximum work is done in compressing air when the compression is None of these Adiabatic Isothermal Polytropic None of these Adiabatic Isothermal Polytropic ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Losses in a centrifugal compressor are due to Impeller channel losses Diffuser losses All of the listed here Inlet losses Impeller channel losses Diffuser losses All of the listed here Inlet losses 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 An ideal air compressor cycle without clearance on P-V diagram can be represented by following processes Two adiabatic, one isobaric and one constant volume Two adiabatic and two isobaric One adiabatic, one isobaric and two constant volumes One adiabatic, two isobaric, and one constant volume Two adiabatic, one isobaric and one constant volume Two adiabatic and two isobaric One adiabatic, one isobaric and two constant volumes One adiabatic, two isobaric, and one constant volume ANSWER DOWNLOAD EXAMIANS APP
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