Compressors, Gas Turbines and Jet Engines As the turbine inlet temperature increases, the thermal efficiency of gas turbine for the optimum pressure ratio First increases and then decreases Decreases Increases Remain same First increases and then decreases Decreases Increases Remain same ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The following property is most important for material used for gas turbine blade Corrosion resistance Toughness Fatigue Creep Corrosion resistance Toughness Fatigue Creep ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Propulsive efficiency is defined as ratio of Thrust power and propulsive power Propulsive power and fuel input Engine output and propulsive power Thrust power and fuel energy Thrust power and propulsive power Propulsive power and fuel input Engine output and propulsive power Thrust power and fuel energy ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Volumetric efficiency of a compressor with clearance volume May increase/decrease depending on compressor capacity Decreases with increase in compression ratio In not dependent upon compression ratio Increases with increase in compression ratio May increase/decrease depending on compressor capacity Decreases with increase in compression ratio In not dependent upon compression ratio Increases with increase in compression ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ratio of compression is the ratio of Absolute discharge pressure to the absolute intake pressure Pressures at discharge and suction corresponding to same temperature Stroke volume and clearance volume Gauge discharge pressure to the gauge intake pressure Absolute discharge pressure to the absolute intake pressure Pressures at discharge and suction corresponding to same temperature Stroke volume and clearance volume Gauge discharge pressure to the gauge intake pressure ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In jet engines, paraffin is usually used as the fuel because of its Low freezing point Both (A) and (C) above High calorific value Ease of atomisation Low freezing point Both (A) and (C) above High calorific value Ease of atomisation ANSWER DOWNLOAD EXAMIANS APP
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