Maximum allowable noise exposure limits for a man working for 8 hours a day in a noisy chemical plant is about __________ decibels.

Question: During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to
[A].

time

[B].

square root of time

[C].

square of time

[D].

cube of time

Answer: Option B

Explanation:

No answer description available for this question.

Question: Consider the equilibrium A(g) + B(g) = AB(g). When the partial pressure of A is 10-2 atm, the partial pressure of B is 10-3 atm and the partial pressure of AB is 1 atm, the equilibrium constant ‘K’ is
[A].

10 atm-1

[B].

105 atm-1

[C].

10 (dimensionless)

[D].

105 (dimensionless)

Answer: Option B

Explanation:

No answer description available for this question.

Question: M10 index of coke indicates its
[A].

compressive strength.

[B].

hardness.

[C].

abrasion resistance.

[D].

impact strength.

Answer: Option C

Explanation:

No answer description available for this question.