Compressors, Gas Turbines and Jet Engines Gas turbines use following type of air compressor Lobe type Reciprocating type Centrifugal type Axial flow type Lobe type Reciprocating type Centrifugal type Axial flow type ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines It is not possible to use closed gas turbine cycle in aeronautical engines because It requires cooling water for its operation It is bulky None of these It is inefficient It requires cooling water for its operation It is bulky None of these It is inefficient ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The process, which causes the air to enter the impeller blades of a centrifugal compressor at ________ velocity (without effecting the mass of air to flow and velocity of flow) is known as prewhirl. Reduced Increased None of these Zero Reduced Increased None of these Zero ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a jet engine, the air-fuel ratio is 1.6673611111111 1.2506944444444 2.0840277777778 2.5006944444444 1.6673611111111 1.2506944444444 2.0840277777778 2.5006944444444 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In turbo fan engine, the jet velocity as compared to turbojet engine is Less May be less or more depending upon speed Same More Less May be less or more depending upon speed Same More ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Which of the following statement is correct as regard to centrifugal compressors? The flow of air is parallel to the axis of the compressor The maximum efficiency is higher than multistage axial flow compressors The impeller rotates at high speeds The static pressure of air in the impeller increases in order to provide centripetal force on the air The flow of air is parallel to the axis of the compressor The maximum efficiency is higher than multistage axial flow compressors The impeller rotates at high speeds The static pressure of air in the impeller increases in order to provide centripetal force on the air ANSWER DOWNLOAD EXAMIANS APP
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