Compressors, Gas Turbines and Jet Engines The air entry velocity m a rocket as compared to aircraft is More Less Zero Same More Less Zero Same ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A gas turbine used in air craft should have High speed and high h.p. Small frontal area and high h.p. Low weight and small frontal area High h.p. and low weight High speed and high h.p. Small frontal area and high h.p. Low weight and small frontal area High h.p. and low weight ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Cylinder clearance in a compressor should be About 100% of swept volume As small as possible As large as possible About 50% of swept volume About 100% of swept volume As small as possible As large as possible About 50% of swept volume ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ramjet engine Requires no air for its operation Produces a jet consisting of plasma Is not self operating at zero flight speed Is self operating at zero flight speed Requires no air for its operation Produces a jet consisting of plasma Is not self operating at zero flight speed Is self operating at zero flight speed ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The overall thermal efficiency of an ideal gas turbine plant is (where r = Pressure ratio) 1 - r ɣ-1 1 - (1/r) ɣ-1/ɣ r ɣ-1 1 - (1/r) ɣ/ɣ-1 1 - r ɣ-1 1 - (1/r) ɣ-1/ɣ r ɣ-1 1 - (1/r) ɣ/ɣ-1 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The pressure ratio of an ideal vaned compressor with increase in mass flow rate Decreases Increases Remain constant First decreases and then increases Decreases Increases Remain constant First decreases and then increases ANSWER DOWNLOAD EXAMIANS APP
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