Compressors, Gas Turbines and Jet Engines The thermal efficiency of a simple gas turbine for a given turbine inlet temperature with increase in pressure ratio Decreases First decreases and then increases First increases and then decreases Increases Decreases First decreases and then increases First increases and then decreases Increases ANSWER DOWNLOAD EXAMIANS APP
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 The inlet pressure is always ___ the discharge pressure. Less than Equal to More than None of the listed here Less than Equal to More than None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The pressure of air at the beginning of the compression stroke is ___ the atmospheric pressure. None of the listed here More than Less than Equal to None of the listed here More than Less than Equal to 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 Delivers 3 m³/ min of compressed air at delivery pressure Compresses 3 m³/min of standard air Compresses 3 m³/ min of free air Delivers 3 m³/ min of compressed air Delivers 3 m³/ min of compressed air at delivery pressure Compresses 3 m³/min of standard air Compresses 3 m³/ min of free air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a four stage compressor, if the pressure at the first and third stage is 1 bar and 16 bar, then the delivery pressure at the fourth stage will be 1 bar 256 bar 64 bar 16 bar 1 bar 256 bar 64 bar 16 bar ANSWER DOWNLOAD EXAMIANS APP
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