Compressors, Gas Turbines and Jet Engines Ramjet engine Is not self operating at zero flight speed Produces a jet consisting of plasma Requires no air for its operation Is self operating at zero flight speed Is not self operating at zero flight speed Produces a jet consisting of plasma Requires no air for its operation Is self operating at zero flight speed ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a jet propulsion The propulsive matter is ejected from within the propelled body None of these The propulsive matter is caused to flow around the propelled body Its functioning does not depend upon presence of air The propulsive matter is ejected from within the propelled body None of these The propulsive matter is caused to flow around the propelled body Its functioning does not depend upon presence of air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of 0.99 0.85 0.9 0.75 0.99 0.85 0.9 0.75 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A closed gas turbine in which fuel is burnt directly in the air is not possible because of High friction losses Increasing gas temperature Paucity of O2 High specific volume High friction losses Increasing gas temperature Paucity of O2 High specific volume ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ram compression in turbojet involves Compression of inlet air Lost work Increasing speed of incoming air Reduction of speed of incoming air and conversion of part of it into pressure energy Compression of inlet air Lost work Increasing speed of incoming air Reduction of speed of incoming air and conversion of part of it into pressure energy ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a reciprocating air compressor, the compression work per kg of air Is independent of clearance volume Increases as clearance volume decreases Increases as clearance volume increases Decreases as clearance volume increases Is independent of clearance volume Increases as clearance volume decreases Increases as clearance volume increases Decreases as clearance volume increases ANSWER DOWNLOAD EXAMIANS APP
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