Compressors, Gas Turbines and Jet Engines Isothermal compression though most efficient, but is not practicable because It is impossible in practice Compressor has to run at very slow speed to achieve it It requires very big cylinder It does not increase pressure much It is impossible in practice Compressor has to run at very slow speed to achieve it It requires very big cylinder It does not increase pressure much ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The criterion of the thermodynamic efficiency for rotary compressor is None of the listed here Isothermal compression Polytropic compression Isentropic compression None of the listed here Isothermal compression Polytropic compression Isentropic compression ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of the net work obtained from the gas turbine plant to the turbine work is known as Compression ratio Work ratio Pressure ratio None of these Compression ratio Work ratio Pressure ratio None of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A compressor at high altitude will draw More power More/less power depending on other factors Same power Less power More power More/less power depending on other factors Same power Less power 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) (W₁ + W₂)/W₂ W₂/(W₁ + W₂) W₁/(W₁ + W₂) (W₁ + W₂)/W₁ (W₁ + W₂)/W₂ W₂/(W₁ + W₂) W₁/(W₁ + W₂) (W₁ + W₂)/W₁ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The work-done on a compressor will be minimum if air is taken from A source of low temperature air A source of high temperature air A source at 0° C The atmosphere A source of low temperature air A source of high temperature air A source at 0° C The atmosphere ANSWER DOWNLOAD EXAMIANS APP
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