Compressors, Gas Turbines and Jet Engines The air-fuel ratio in gas turbines is of the order of 50: 1. 7: 1 15: 1 30: 1 50: 1. 7: 1 15: 1 30: 1 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines High air-fuel ratio is used in gas turbines To increase the efficiency To reduce the exit temperature To save fuel To increase the output To increase the efficiency To reduce the exit temperature To save fuel To increase the output ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a centrifugal compressor, an increase in speed at a given pressure ratio causes Decrease in flow Increase in flow and decrease in efficiency Increase in flow Increase in efficiency Decrease in flow Increase in flow and decrease in efficiency Increase in flow Increase in efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The clearance volume of the air compressor is kept minimum because It permits isothermal compression It greatly affects volumetric efficiency It results in minimum work It allows maximum compression to be achieved It permits isothermal compression It greatly affects volumetric efficiency It results in minimum work It allows maximum compression to be achieved ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The volume of air delivered by the compressor is called Free air delivery Compressor capacity None of the listed here Swept volume Free air delivery Compressor capacity None of the listed here Swept volume ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Inter cooling in compressors Results in saving of power in compressing a given volume to given pressure Enables compression in two stages Cools the delivered air Is the standard practice for big compressors Results in saving of power in compressing a given volume to given pressure Enables compression in two stages Cools the delivered air Is the standard practice for big compressors ANSWER DOWNLOAD EXAMIANS APP
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