In the Bayer’s process, bauxite is digested under pressure using

Question: In case of steady flow compression polytropic process (PVn = constant), the work done on air is the lowest, when
[A].

n = y = 1.4

[B].

n = 0

[C].

n = 1

[D].

n = 1.66

Answer: Option C

Explanation:

No answer description available for this question.

Question: Air-refrigeration cycle
[A].

is the most efficient of all refrigeration cycles.

[B].

has very low efficiency.

[C].

requires relatively large quantities of air to achieve a significant amount of refrigeration.

[D].

both (b) and (c).

Answer: Option D

Explanation:

No answer description available for this question.