Compressors, Gas Turbines and Jet Engines With the decrease in compression ratio, the volumetric efficiency Does not change Decreases First decrease and then increase Increases Does not change Decreases First decrease and then increase Increases ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Adiabatic compression is one in which Temperature rise follows a linear relationship Temperature during compression remains constant Work done is maximum No heat leaves or enters the compressor cylinder during compression Temperature rise follows a linear relationship Temperature during compression remains constant Work done is maximum No heat leaves or enters the compressor cylinder during compression ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Pick up the wrong statement about advantages of multistage compression Air can be cooled perfectly in between Better lubrication is possible advantages of multistage Mechanical balance is better More loss of air due to leakage past the cylinder Air can be cooled perfectly in between Better lubrication is possible advantages of multistage Mechanical balance is better More loss of air due to leakage past the cylinder ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a jet propulsion None of these The propulsive matter is caused to flow around the propelled body Its functioning does not depend upon presence of air The propulsive matter is ejected from within the propelled body None of these The propulsive matter is caused to flow around the propelled body Its functioning does not depend upon presence of air The propulsive matter is ejected from within the propelled body ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The type of rotary compressor used in aeroplanes, is of Centrifugal type None of these Axial flow type Radial flow type Centrifugal type None of these Axial flow type Radial flow type 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 Other factors control it Decrease Remain unaffected Increase Other factors control it Decrease Remain unaffected Increase ANSWER DOWNLOAD EXAMIANS APP
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