Compressors, Gas Turbines and Jet Engines The net work input required for compressor with increase in clearance volume Increases Remains same Decreases Increases/decreases depending on compressor capacity Increases Remains same Decreases Increases/decreases depending on compressor capacity ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Separators in compressor installations are located Before inter-cooler Between after-cooler and air receiver After receiver After inter-cooler Before inter-cooler Between after-cooler and air receiver After receiver After inter-cooler ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines If p₁, is the pressure of air entering the L.P. cylinder and p₂ is the pressure of air leaving the L.P. cylinder (or inter-cooler pressure), then the ratio of cylinder diameters for a single acting, two stage reciprocating air compressor with complete intercooling is given by (where D₁ = Dia. of L.P. cylinder, and D₂ = Dia. of H.P. cylinder) D₁/D₂ = p₁/p₂ None of these D₁/D₂ = p₁ p₂ D₁/D₂ = p₂/p₁ D₁/D₂ = p₁/p₂ None of these D₁/D₂ = p₁ p₂ D₁/D₂ = p₂/p₁ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The process, which causes the air to enter the impeller blades of a centrifugal compressor at ________ velocity (without effecting the mass of air to flow and velocity of flow) is known as prewhirl. Zero None of these Reduced Increased Zero None of these Reduced Increased 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 = p₃/p₁ p₂ = p₁ × p₂ p₂ = p₁ × p₃ p₂ = p₁/p₃ p₂ = p₃/p₁ p₂ = p₁ × p₂ p₂ = p₁ × p₃ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of the discharge pressure to the inlet pressure of air is called Compression ratio Volumetric efficiency Compressor efficiency Expansion ratio Compression ratio Volumetric efficiency Compressor efficiency Expansion ratio ANSWER DOWNLOAD EXAMIANS APP
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