Compressors, Gas Turbines And Jet Engines MCQ Questions & Answers | Mechanical Engineering

A. $$\frac{{{{\text{p}}_1} - {{\text{p}}_2}}}{2}$$

B. $$\frac{{{{\text{p}}_1} + {{\text{p}}_2}}}{2}$$

C. $$\frac{{{{\text{p}}_1}}}{{{{\text{p}}_2}}}$$

D. $${{\text{p}}_1}{{\text{p}}_2}$$

A. To cool the air during compression

B. To cool the air at delivery

C. To enable compression in two stages

D. To minimize the work of compression

A. Adding heat exchanger

B. Injecting water in/around combustion chamber

C. Reheating the air after partial expansion in the turbine

D. All of the above

A. Injecting water into the compressor

B. Burning fuel after gas turbine

C. Injecting ammonia into the combustion chamber

D. All of the above

A. Radial flow compressors

B. Axial flow compressors

C. Pumps

D. All of these

A. Temperature during compression remains constant

B. No heat leaves or enters the compressor cylinder during compression

C. Temperature rise follows a linear relationship

D. Work done is maximum

A. Gauge discharge pressure to the gauge intake pressure

B. Absolute discharge pressure to the absolute intake pressure

C. Pressures at discharge and suction corresponding to same temperature

D. Stroke volume and clearance volume

A. 1

B. 1.2

C. 1.3

D. 1.4

A. Decreases

B. Increases

C. Does not change

D. None of these

A. Start-stop motor

B. Constant speed unloader

C. Relief valve

D. Variable speed