Which one contains minimum percentage of SiO2 ?
Correct answer: B. Sillimanite
- A. Firebrick
- B. Sillimanite
- C. Semi-silica
- D. Aluminous firebrick
Explanation
Sillimanite, Al2O3·SiO2, contains about 36.5% SiO2, less than ordinary firebrick and semi-silica brick. Aluminous firebrick can vary, but the standard comparison identifies sillimanite as the minimum-silica option here.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
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.
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
Pure bauxite is the best raw material for the manufacture of high alumina refractories, in which maximum alumina content can be as high as _____________ percent?
Mullite is chemically represented by_________________?
High alumina refractory compared to fireclay bricks have____________________?
___________________ is the measure of the strength of refractory under the combined effect of temperature & load ?
Which of the following is not a high alumina refractory material ?
Which is not a natural insulating material ?