Compressors, Gas Turbines and Jet Engines A rocket works with maximum overall efficiency when air craft velocity is equal to the Twice the jet velocity Jet velocity Half the jet velocity Average of the jet velocity Twice the jet velocity Jet velocity Half the jet velocity Average of the jet velocity ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines High air-fuel ratio is used in gas turbines To save fuel To reduce the exit temperature To increase the efficiency To increase the output To save fuel To reduce the exit temperature To increase the efficiency To increase the output ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Cylinder clearance in a compressor should be As small as possible About 100% of swept volume As large as possible About 50% of swept volume As small as possible About 100% of swept volume As large as possible About 50% of swept volume ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The volumetric efficiency for reciprocating air compressors is about 70 to 90% 40 to 60% 10 to 40% 60 to 70% 70 to 90% 40 to 60% 10 to 40% 60 to 70% ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A jet engine has Propeller in front Propeller on the top No propeller Propeller at back Propeller in front Propeller on the top No propeller Propeller at back ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Losses in a centrifugal compressor are due to Inlet losses All of the listed here Diffuser losses Impeller channel losses Inlet losses All of the listed here Diffuser losses Impeller channel losses ANSWER DOWNLOAD EXAMIANS APP
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