Rate of slag attack on refractories increases with rise in temperature due to the___________________?
Correct answer: D. Decreased viscosity of slag
- A. None of these
- B. Increased thermal conductivity of brick
- C. Oxidising condition in the furnace
- D. Decreased viscosity of slag
Explanation
Heating lowers the viscosity of molten slag, allowing it to flow, penetrate pores and react with the refractory more readily. The other listed effects are not the principal general reason for the increased attack rate.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Chemical Process Principles
2,710 free Chemical Process Principles MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Chemical Process Principles questions
Tar bonded dolomite bricks__________________?
Which furnace consumes maximum refractory annually in an integrated steel plant ?
Which of the following bricks should not be used, if the furnace is to be used intermittently ?
Sillimanite (Al2O3.SiO2) refractory, which is a neutral refractory, is not used in________________?
High refractoriness of refractory bricks means, that it has a________________?
Spalling resistance of a refractory cannot be increased by ____________________?