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

A. Cools the delivered air

B. Results in saving of power in compressing a given volume to given pressure

C. Is the standard practice for big compressors

D. Enables compression in two stages

A. At very high speed

B. At very slow speed

C. At average speed

D. At zero speed

A. Turbojet

B. Turbo-propeller

C. Rocket

D. Ramjet

A. Reduced

B. Increased

C. Zero

D. None of these

A. Increase

B. Decrease

C. Remain unaffected

D. Other factors control it

A. Increases power output

B. Improves thermal efficiency

C. Reduces exhaust temperature

D. Do not damage turbine blades

A. Compressor work and turbine work

B. Output and input

C. Actual total head temperature drop to the isentropic total head drop from total head inlet to static head outlet

D. Actual compressor work and theoretical compressor work

A. The combustion chamber in a rocket engine is directly analogous to the reservoir of a supersonic wind tunnel

B. The stagnation conditions exist at the combustion chamber

C. The exit velocities of exhaust gases are much higher than those in jet engine

D. All of the above

A. Less

B. More

C. Same

D. May be less or more depending on ambient conditions

A. Centrifugal type

B. Reciprocating type

C. Lobe type

D. Axial flow type