Compressors, Gas Turbines and Jet Engines The process, which causes the air to enter the impeller blades of a centrifugal compressor at ________ velocity (without effecting the mass of air to flow and velocity of flow) is known as prewhirl. Increased Zero Reduced None of these Increased Zero Reduced None of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines 1 m of air at atmospheric condition weighs approximately 1.0 kg 2.2 kg 0.5 kg 1.3 kg 1.0 kg 2.2 kg 0.5 kg 1.3 kg ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The closed cycle in gas turbines Is used when gas is to be burnt In never used Provides greater flexibility Provides lesser flexibility Is used when gas is to be burnt In never used Provides greater flexibility Provides lesser flexibility ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Which of the following fuels can be used in turbojet engines? High speed diesel oil Liquid hydrogen Methyl alcohol Kerosene High speed diesel oil Liquid hydrogen Methyl alcohol Kerosene ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In the aircraft propellers Its functioning does not depend on presence of air The propulsive matter is caused to flow around the propelled body Propulsive matter is ejected from within the propelled body All of these Its functioning does not depend on presence of air The propulsive matter is caused to flow around the propelled body Propulsive matter is ejected from within the propelled body All of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For minimum work in multistage compression, assuming same index of compression in all stages Work done in subsequent stages should decrease Work done in all stages should be equal Work done in subsequent stages should increase Work done in first stage should be more Work done in subsequent stages should decrease Work done in all stages should be equal Work done in subsequent stages should increase Work done in first stage should be more ANSWER DOWNLOAD EXAMIANS APP
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