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 Volumetric efficiency of air compressors is of the order of 40 - 50% 20 - 30% 60 - 70% 70 - 90% 40 - 50% 20 - 30% 60 - 70% 70 - 90% ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines 1 m of air at atmospheric condition weighs approximately 1.0 kg 0.5 kg 2.2 kg 1.3 kg 1.0 kg 0.5 kg 2.2 kg 1.3 kg ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For a two stage compressor, if index of compression for higher stage is greater than index of compression for lower stage, then the optimum pressure as compared to ideal case will Remain unaffected Increase Other factors control it Decrease Remain unaffected Increase Other factors control it Decrease ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The area of actual indicator diagram on an air compressor as compared to area of ideal indicator diagram is Same Less More More/less depending on compressor capacity Same Less More More/less depending on compressor capacity ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The specific output per kg mass flow rate of a gas turbine (having fixed efficiencies of compressor and turbine and fixed higher and lower temperature) with increase in pressure ratio will Decrease continuously First increase, reach maximum and then decrease Increase first at fast rate and then slow Increase first at slow rate and then fast Decrease continuously First increase, reach maximum and then decrease Increase first at fast rate and then slow Increase first at slow rate and then fast ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS