In jet engines, for the efficient production of large power, fuel is burnt in an atmosphere of__________________?

Question: A centrifugal compressor is an axial flow compressor.
[A].

Correct

[B].

Incorrect

Answer: Option B

Explanation:

No answer description available for this question.

Question: An aftercooler is used to
[A].

remove impurities from air

[B].

reduce volume of air

[C].

cause moisture and oil vapour to drop out

[D].

cool the air

Answer: Option C

Explanation:

No answer description available for this question.

Question: In reciprocating air compressors, isothermal efficiency is used for all sorts of calculations.
[A].

Correct

[B].

Incorrect

Answer: Option A

Explanation:

No answer description available for this question.

Question: Only rocket engines can be propelled to space because
[A].

they can generate very high thrust

[B].

they have high propulsion efficiency

[C].

these engines can work on several fuels

[D].

they are not air-breathing engines

Answer: Option D

Explanation:

No answer description available for this question.