Chemical Engineering - Refractory Technology
Exercise :: Refractory Technology - Section 2
31. |
Periclase is |
A. |
crystalline form of MgO. | B. |
MgCO3. | C. |
ZrSO4. | D. |
amorphous magnesite. |
Answer: Option A
Explanation:
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32. |
Which of the following is not a neutral refractory ? |
A. |
Silicon carbide | B. |
Magnesite | C. |
Chromite | D. |
Graphite |
Answer: Option B
Explanation:
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33. |
Which is a basic refractory ? |
A. |
Fireclay | B. |
Silica | C. |
Chrome magnesite | D. |
None of these |
Answer: Option C
Explanation:
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34. |
Cold crushing strength of a refractory does not depend upon its |
A. |
shape | B. |
composition | C. |
firing temperature | D. |
texture |
Answer: Option A
Explanation:
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35. |
Refractoriness under load (RUL) is the most important property for the refractory bricks |
A. |
at the hearth bottom of the furnace on which stock is placed. | B. |
used for furnace insulation. | C. |
used in the roof of the furnace. | D. |
none of these. |
Answer: Option A
Explanation:
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