Compressors, Gas Turbines and Jet Engines Free air is the air at 15°C and 1 kg/cm² Atmospheric conditions at any specific location 0°C and standard atmospheric conditions 20°C and 1 kg/cm² and relative humidity of 36% 15°C and 1 kg/cm² Atmospheric conditions at any specific location 0°C and standard atmospheric conditions 20°C and 1 kg/cm² and relative humidity of 36% ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The stagnation pressure rise in a centrifugal compressor takes place In the inlet guide vanes only In the diffuser only In the impeller only In the diffuser and impeller In the inlet guide vanes only In the diffuser only In the impeller only In the diffuser and impeller 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 = p₂/p₁ 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 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In the axial flow gas turbine, the work ratio is the ratio of Actual compressor work and theoretical compressor work Actual total head temperature drop to the isentropic total head drop from total head inlet to static head outlet Compressor work and turbine work Output and input Actual compressor work and theoretical compressor work Actual total head temperature drop to the isentropic total head drop from total head inlet to static head outlet Compressor work and turbine work Output and input ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In jet engines, for the efficient production of large power, fuel is burnt in an atmosphere of Vacuum Compressed air Atmospheric air Oxygen alone Vacuum Compressed air Atmospheric air Oxygen alone ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The efficiency of a jet engine is higher at Low speeds High speeds High altitudes Low altitudes Low speeds High speeds High altitudes Low altitudes ANSWER DOWNLOAD EXAMIANS APP
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