Compressors, Gas Turbines and Jet Engines The efficiency of the vane blower is (where W₁ = Workdone due to compression, and W₂ = Workdone due to back flow) (W₁ + W₂)/W₁ W₂/(W₁ + W₂) (W₁ + W₂)/W₂ W₁/(W₁ + W₂) (W₁ + W₂)/W₁ W₂/(W₁ + W₂) (W₁ + W₂)/W₂ W₁/(W₁ + W₂) ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The axial flow compressor is preferred in aircraft gas turbines because of None of the listed here High pressure rise Low frontal area Higher thrust None of the listed here High pressure rise Low frontal area Higher thrust ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Isothermal compression efficiency can be attained by running the compressor At zero speed At average speed At very high speed At very slow speed At zero speed At average speed At very high speed At very slow speed ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Volumetric efficiency of a compressor with clearance volume In not dependent upon compression ratio May increase/decrease depending on compressor capacity Increases with increase in compression ratio Decreases with increase in compression ratio In not dependent upon compression ratio May increase/decrease depending on compressor capacity Increases with increase in compression ratio Decreases with increase in compression ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Maximum work is done in compressing air when the compression is Adiabatic Polytropic Isothermal None of these Adiabatic Polytropic Isothermal None of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The work ratio of simple gas turbine cycle depends on Maximum cycle temperature Minimum cycle temperature All of these Pressure ratio Maximum cycle temperature Minimum cycle temperature All of these Pressure ratio ANSWER DOWNLOAD EXAMIANS APP
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