Compressors, Gas Turbines and Jet Engines An ideal air compressor cycle with clearance on P-V diagram can be represented by following processes One adiabatic, one isobaric and two constant volumes Two adiabatic, one isobaric and one constant volume One adiabatic, two isobaric, and one constant volume Two adiabatic and two isobaric One adiabatic, one isobaric and two constant volumes Two adiabatic, one isobaric and one constant volume One adiabatic, two isobaric, and one constant volume Two adiabatic and two isobaric ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Air-fuel ratio in a jet engine will be of the order of 2.5006944444444 0.83402777777778 0.41736111111111 0.62569444444444 2.5006944444444 0.83402777777778 0.41736111111111 0.62569444444444 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The thermal efficiency of a simple gas turbine for a given turbine inlet temperature with increase in pressure ratio Decreases First decreases and then increases First increases and then decreases Increases Decreases First decreases and then increases First increases and then decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For a two stage reciprocating compressor, compression from p₁ to p₃ is with perfect intercooling and no pressure losses. If compression in both the cylinders follows the same polytropic process and the atmospheric pressure is pa, then the intermediate pressure p₂ is given by p₂ = Pa p₃/p₁ P₂ = Pa × p₃/p₁ p₂ = (p₁ + p₃)/2 p₂ = p₁. p₃ p₂ = Pa p₃/p₁ P₂ = Pa × p₃/p₁ p₂ = (p₁ + p₃)/2 p₂ = p₁. p₃ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Gas turbine as compared to steam turbine All of these Has less efficiency Requires less space for installation Has compressor and combustion chamber All of these Has less efficiency Requires less space for installation Has compressor and combustion chamber ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A rotary compressor is driven by an Electric motor Either (A) or (B) Engine None of these Electric motor Either (A) or (B) Engine None of these ANSWER DOWNLOAD EXAMIANS APP
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