Compressors, Gas Turbines and Jet Engines The most efficient method of compressing air is to compress it Isochronically Isentropically Adiabatically Isothermally Isochronically Isentropically Adiabatically Isothermally 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 = (p₁ + p₃)/2 p₂ = p₁. p₃ p₂ = Pa p₃/p₁ P₂ = Pa × p₃/p₁ p₂ = (p₁ + p₃)/2 p₂ = p₁. p₃ p₂ = Pa p₃/p₁ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Which one of the following is the effect of blade shape on performance of a centrifugal compressor? Backward curved blades lead to stable performance Forward curved blades produce lower pressure ratio Forward curved blades has higher efficiency Backward curved blades has poor efficiency Backward curved blades lead to stable performance Forward curved blades produce lower pressure ratio Forward curved blades has higher efficiency Backward curved blades has poor efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The material commonly used for air craft gas turbine is Duralumin Stainless steel Timken, Haste alloys High alloy steel Duralumin Stainless steel Timken, Haste alloys High alloy steel ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a high pressure compressor, the delivery pressure is 8 to 10 bar 5 to 8 bar 10 to 15 bar 1 to 5 bar 8 to 10 bar 5 to 8 bar 10 to 15 bar 1 to 5 bar ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The performance of air compressor at high altitudes will be ________ as compared to that at sea level. Higher Lower None of these Same Higher Lower None of these Same ANSWER DOWNLOAD EXAMIANS APP
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