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 (W₁ + W₂)/W₁ W₁/(W₁ + W₂) W₂/(W₁ + W₂) (W₁ + W₂)/W₂ (W₁ + W₂)/W₁ W₁/(W₁ + W₂) W₂/(W₁ + W₂) ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The reason for volumetric efficiency of reciprocating compressor being less than 100 percent is Clearance volume and leakages All of these Superheating in compressor Pressure drop across the valves Clearance volume and leakages All of these Superheating in compressor Pressure drop across the valves ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Work ratio of a gas turbine may be improved by Both (A) and (C) above Decreasing the compression work Increasing the turbine work Increasing the compression work Both (A) and (C) above Decreasing the compression work Increasing the turbine work Increasing the compression work ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The following is true for an open cycle gas turbine having exhaust heat exchanger. Atmospheric air before entering the compressor is Exhaust gases drive the compressor Heated Bled gas from turbine is heated and readmitted for complete expansion Compressed air before entering the combustion chamber is heated Exhaust gases drive the compressor Heated Bled gas from turbine is heated and readmitted for complete expansion Compressed air before entering the combustion chamber is heated ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A machine used to raise the pressure of air is called Gas turbine I.C engine Compressor Air motor Gas turbine I.C engine Compressor Air motor ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ratio of indicated H.P. and brake H.P. is known as Isothermal efficiency Volumetric efficiency Adiabatic efficiency Mechanical efficiency Isothermal efficiency Volumetric efficiency Adiabatic efficiency Mechanical efficiency ANSWER DOWNLOAD EXAMIANS APP
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