Roof of a basic open hearth furnace is lined with ______________ bricks?
Correct answer: D. Silica
- A. Magnesite
- B. Fireclay
- C. Dolomite
- D. Silica
Explanation
Silica bricks withstand the high temperature and acidic conditions in the roof of a basic open-hearth furnace. Fireclay is less refractory, while magnesite and dolomite are basic refractories generally used in zones contacting 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
Chrome magnesite bricks are used in the_________________?
Refractory materials are never used in the construction of _________________?
Graphite or carbon refractories______________________?
Which of the following bricks has the most close values of RUL and PCE ?
Which is the most stable crystalline form of silica at room temperature ?
Because of its very high refractoriness of the order of __________ °C, silicon carbide refractories are used in zinc smelting furnace, muffle furnace and for supporting the wares in tunnel kilns ?