Compressors, Gas Turbines and Jet Engines There is a certain pressure ratio (optimum) for a gas turbine at which its thermal efficiency is maximum. With increase in turbine temperature, the value of pressure ratio for the peak efficiency would Increase Decrease Remain same None of these Increase Decrease Remain same None of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In the axial flow gas turbine, the work ratio is the ratio of Actual total head temperature drop to the isentropic total head drop from total head inlet to static head outlet Actual compressor work and theoretical compressor work Compressor work and turbine work Output and input Actual total head temperature drop to the isentropic total head drop from total head inlet to static head outlet Actual compressor work and theoretical compressor work Compressor work and turbine work Output and input ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The type of rotary compressor used in gas turbines, is of Axial flow type None of the listed here Radial flow type Centrifugal type Axial flow type None of the listed here Radial flow type Centrifugal type ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The mean effective pressure of the compressor is the Volume of air delivered by the compressor None of these Actual volume of the air delivered by the compressor when reduced to normal temperature and pressure conditions Volume of air sucked by the compressor during its suction stroke Volume of air delivered by the compressor None of these Actual volume of the air delivered by the compressor when reduced to normal temperature and pressure conditions Volume of air sucked by the compressor during its suction stroke ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Surging is the phenomenon of Air stream blocking the passage Motion of air at sonic velocity Unsteady, periodic and reversed flow Air stream not able to follow the blade contour Air stream blocking the passage Motion of air at sonic velocity Unsteady, periodic and reversed flow Air stream not able to follow the blade contour ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Intercooling in gas turbines Decreases net output but increases thermal efficiency Increases net output but decreases thermal efficiency Decreases net output and thermal efficiency both Increases net output and thermal efficiency both Decreases net output but increases thermal efficiency Increases net output but decreases thermal efficiency Decreases net output and thermal efficiency both Increases net output and thermal efficiency both ANSWER DOWNLOAD EXAMIANS APP
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