Compressors, Gas Turbines and Jet Engines The efficiency of a jet engine is higher at Low altitudes High speeds Low speeds High altitudes Low altitudes High speeds Low speeds High altitudes ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A closed gas turbine in which fuel is burnt directly in the air is not possible because of Increasing gas temperature High friction losses Paucity of O2 High specific volume Increasing gas temperature High friction losses Paucity of O2 High specific volume ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Pick up the wrong statement about advantages of multistage compression Better lubrication is possible advantages of multistage Air can be cooled perfectly in between Mechanical balance is better More loss of air due to leakage past the cylinder Better lubrication is possible advantages of multistage Air can be cooled perfectly in between Mechanical balance is better More loss of air due to leakage past the cylinder ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The absolute pressure of air at the outlet of a compressor is called Back pressure Discharge pressure Critical pressure None of the listed here Back pressure Discharge pressure Critical pressure None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A 3 m³/min compressor means that it Delivers 3 m³/ min of compressed air at delivery pressure Compresses 3 m³/ min of free air Delivers 3 m³/ min of compressed air Compresses 3 m³/min of standard air Delivers 3 m³/ min of compressed air at delivery pressure Compresses 3 m³/ min of free air Delivers 3 m³/ min of compressed air Compresses 3 m³/min of standard air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines If p₁ is the pressure of air entering the L.P, cylinder and p₃ is the pressure of air leaving the H.P. cylinder, then the ratio of cylinder diameters for a single acting, two stage reciprocating compressor with complete intercooling is given by D₁/D₂ = (p₃/p₁)1/4 D₁/D₂ = (p₁ p₃)1/4 D₁/D₂ = (p₁ p₃)1/2 D₁/D₂ = (p₁/p₃)1/4 D₁/D₂ = (p₃/p₁)1/4 D₁/D₂ = (p₁ p₃)1/4 D₁/D₂ = (p₁ p₃)1/2 D₁/D₂ = (p₁/p₃)1/4 ANSWER DOWNLOAD EXAMIANS APP
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