With increase in the oxygen content of the coal, its __________ decreases.

Question: In the Bayer’s process, bauxite is digested under pressure using
[A].

H2SO4

[B].

NaOH

[C].

NH3

[D].

HCl

Answer: Option B

Explanation:

No answer description available for this question.

Question: Floating control action
[A].

moves the final control element at constant speed in either direction in response to an error signal.

[B].

changes the position of the final control element from on to off.

[C].

is used to counteract rapid load changes.

[D].

none of these.

Answer: Option A

Explanation:

No answer description available for this question.