Compressors, Gas Turbines and Jet Engines The volumetric efficiency of a compressor falls roughly as follows for every 5°C increase in atmospheric temperature 0.005 0.05 0.001 0.01 0.005 0.05 0.001 0.01 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The inter-cooler pressure, for minimum work required, for a two stage reciprocating air compressor, is given by (where p₁ = Intake pressure of air, p₂ = Inter-cooler pressure, and p₃ = Delivery pressure of air) p₂ = p₁/p₃ p₂ = p₁ × p₂ p₂ = p₁ × p₃ p₂ = p₃/p₁ p₂ = p₁/p₃ p₂ = p₁ × p₂ p₂ = p₁ × p₃ p₂ = p₃/p₁ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The advantage of multistage compression over single stage compression is Higher volumetric efficiency All of these Decreased discharge temperature Lower power consumption per unit of air delivered Higher volumetric efficiency All of these Decreased discharge temperature Lower power consumption per unit of air delivered ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Producer gas is produced by Passing steam over incandescent coke Carbonisation of coal Passing air and a large amount of steam over waste coal at about 65°C Partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast Passing steam over incandescent coke Carbonisation of coal Passing air and a large amount of steam over waste coal at about 65°C Partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Mechanical efficiency of gas turbines as compared to I.C engines is None of these Same Higher Lower None of these Same Higher Lower ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ram compression in turbojet involves Lost work Reduction of speed of incoming air and conversion of part of it into pressure energy Increasing speed of incoming air Compression of inlet air Lost work Reduction of speed of incoming air and conversion of part of it into pressure energy Increasing speed of incoming air Compression of inlet air ANSWER DOWNLOAD EXAMIANS APP
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