Rate of low temperature oxidation of coal due to bad... - Solved MCQs & Answer

4233Chemical EngineeringMedium

Rate of low temperature oxidation of coal due to bad storage conditions________?

ADoes not vary with increase in surface area

BIs more for low volatile coal compared to high volatile coal

CIs accelerated by storage in large heaps with small surface to volume ratio

DDecreases with increase in surface area

Correct answer

C. Is accelerated by storage in large heaps with small surface to volume ratio

Explanation

The correct answer is Is accelerated by storage in large heaps with small surface to volume ratio.

Carbon particles accumulated on the catalyst used in the gas oil cracking lies in the category of ________ poison?

Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when________?

In case of liquid-liquid binary diffusion, diffusivity of one constituent into another is not dependent on the________?

A man exposed to excessive noise level in the working environment may suffer from________?

Which of the following materials does not form adherent oxide film on surface?

The contraction co-efficient for Borda’s mouthpiece (for frictionless fluid) is________?