Fusion point of an acidic refractory material is________________?
Correct answer: D. Reduced by the addition of basic oxides
- A. Increased by the addition of basic oxides
- B. Always more than 2500°C
- C. Not affected by the addition of basic oxides
- D. Reduced by the addition of basic oxides
Explanation
Basic oxides react with an acidic refractory and commonly form lower-melting eutectic mixtures, reducing its fusion temperature. This is why acidic refractories are unsuitable for contact with strongly basic slags.
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
Segar cones are used for the determination of ____________ of refractories?
Porosity is induced in insulating refractories by adding________________?
Machine moulding of dry mixture of refractories requires a pressure of the order of _____________ kg/cm2?
An ideal refractory should have high__________________?
Carbon refractories have very high __________________?
Zirconia refractory_________________?