Compressors, Gas Turbines and Jet Engines A closed gas turbine in which fuel is burnt directly in the air is not possible because of Paucity of O2 High specific volume Increasing gas temperature High friction losses Paucity of O2 High specific volume Increasing gas temperature High friction losses ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The effective power of gas turbines is increased by adding the following in compressor Hydrogen Nitrogen Ammonia and water vapour Carbon dioxide Hydrogen Nitrogen Ammonia and water vapour Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The net work input required for compressor with increase in clearance volume Increases/decreases depending on compressor capacity Increases Remains same Decreases Increases/decreases depending on compressor capacity Increases Remains same Decreases ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The degree of reaction of an axial flow turbine is the ratio of isentropic temperature drop in a blade row to the Adiabatic temperature drop in the stage Total temperature drop in the stage Total temperature drop Total adiabatic temperature drop Adiabatic temperature drop in the stage Total temperature drop in the stage Total temperature drop Total adiabatic temperature drop ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Volumetric efficiency of a compressor without clearance volume May increase/decrease depending on compressor capacity Is not dependent upon compression ratio Decreases with increase in compression ratio Increases with increase in compression ratio May increase/decrease depending on compressor capacity Is not dependent upon compression ratio Decreases with increase in compression ratio Increases with increase in compression ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The indicated work per unit mass of air delivered is Inversely proportional to clearance volume Not affected by clearance volume Greatly affected by clearance volume Directly proportional to clearance volume Inversely proportional to clearance volume Not affected by clearance volume Greatly affected by clearance volume Directly proportional to clearance volume ANSWER DOWNLOAD EXAMIANS APP
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