Compressors, Gas Turbines and Jet Engines The overall thermal efficiency of an ideal gas turbine plant is (where r = Pressure ratio) 1 - r ɣ-1 r ɣ-1 1 - (1/r) ɣ/ɣ-1 1 - (1/r) ɣ-1/ɣ 1 - r ɣ-1 r ɣ-1 1 - (1/r) ɣ/ɣ-1 1 - (1/r) ɣ-1/ɣ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Standard air is the air at ___ and relative humidity of 36 percent. 0.1 bar and 20°C 0.1 bar and 40°C 1 bar and 40°C 1 bar and 20°C 0.1 bar and 20°C 0.1 bar and 40°C 1 bar and 40°C 1 bar and 20°C ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Phenomenon of choking in compressor means Increased inclination of chord with air steam No flow of air Reducing mass flow rate with increase in pressure ratio Fixed mass flow rate regardless of pressure ratio Increased inclination of chord with air steam No flow of air Reducing mass flow rate with increase in pressure ratio Fixed mass flow rate regardless of pressure ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The efficiency of the vane blower is (where W₁ = Workdone due to compression, and W₂ = Workdone due to back flow) (W₁ + W₂)/W₂ (W₁ + W₂)/W₁ W₂/(W₁ + W₂) W₁/(W₁ + W₂) (W₁ + W₂)/W₂ (W₁ + W₂)/W₁ W₂/(W₁ + W₂) W₁/(W₁ + W₂) ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A compressor at high altitudes will require ___ power. None of the listed here Same More Less None of the listed here Same More Less ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Pressure ratio in gas turbines is the ratio of Compressor pressure ratio Highest pressure to exhaust pressure Inlet pressure to exhaust pressure Pressures across the turbine Compressor pressure ratio Highest pressure to exhaust pressure Inlet pressure to exhaust pressure Pressures across the turbine ANSWER DOWNLOAD EXAMIANS APP
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