Compressors, Gas Turbines and Jet Engines The area of actual indicator diagram on an air compressor as compared to area of ideal indicator diagram is More Same More/less depending on compressor capacity Less More Same More/less depending on compressor capacity Less ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The volumetric efficiency for reciprocating air compressors is about 10 to 40% 60 to 70% 40 to 60% 70 to 90% 10 to 40% 60 to 70% 40 to 60% 70 to 90% ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Intercooling in gas turbines Increases net output but decreases thermal efficiency Increases net output and thermal efficiency both Decreases net output but increases thermal efficiency Decreases net output and thermal efficiency both Increases net output but decreases thermal efficiency Increases net output and thermal efficiency both Decreases net output but increases thermal efficiency Decreases net output and thermal efficiency both ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The work ratio of a gas turbine plant is defined as the ratio of Actual heat drop and isentropic heat drop Net work output and isentropic heat drop Net work output and work done by turbine Net work output and heat supplied Actual heat drop and isentropic heat drop Net work output and isentropic heat drop Net work output and work done by turbine Net work output and heat supplied 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 + W₂)/W₁ W₁/(W₁ + W₂) (W₁ + W₂)/W₂ W₂/(W₁ + W₂) (W₁ + W₂)/W₁ W₁/(W₁ + W₂) (W₁ + W₂)/W₂ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The pressure ratio of an ideal vaned compressor with increase in mass flow rate First decreases and then increases Increases Decreases Remain constant First decreases and then increases Increases Decreases Remain constant ANSWER DOWNLOAD EXAMIANS APP
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