Compressors, Gas Turbines and Jet Engines High air-fuel ratio is used in gas turbines To save fuel To reduce the exit temperature To increase the output To increase the efficiency To save fuel To reduce the exit temperature To increase the output To increase the efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a centrifugal compressor, the highest Mach number leading to shock wave in the fluid flow occurs at Diffuser inlet radius Impeller outlet radius Diffuser outlet radius Impeller inlet radius Diffuser inlet radius Impeller outlet radius Diffuser outlet radius Impeller inlet radius ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The effective power of gas turbines is increased by adding the following in compressor Ammonia and water vapour Hydrogen Carbon dioxide Nitrogen Ammonia and water vapour Hydrogen Carbon dioxide Nitrogen ANSWER DOWNLOAD EXAMIANS APP
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) W₂/(W₁ + W₂) W₁/(W₁ + W₂) (W₁ + W₂)/W₂ (W₁ + W₂)/W₁ W₂/(W₁ + W₂) W₁/(W₁ + W₂) (W₁ + W₂)/W₂ (W₁ + W₂)/W₁ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The pressure ratio in gas turbines is of the order of 0.084027777777778 0.37569444444444 0.16736111111111 2.5423611111111 0.084027777777778 0.37569444444444 0.16736111111111 2.5423611111111 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a centrifugal compressor, the ratio of the ________ to the blade velocity is called slip factor. Inlet velocity of flow Inlet whirl velocity Outlet whirl velocity Outlet velocity of flow Inlet velocity of flow Inlet whirl velocity Outlet whirl velocity Outlet velocity of flow ANSWER DOWNLOAD EXAMIANS APP
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