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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