Refractory Technology - Section 1
This is a technology field and there are MCQs available to solve
which are based on this field. You will find these problems in this section.
| 25. | Chemically, mullite refractories is |
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Answer: Option A Explanation: No answer description available for this question. Let us discuss. |
| 26. | Firing of refractory brick is done to |
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Answer: Option D Explanation: No answer description available for this question. Let us discuss. |
| 27. | An insulating refractory brick should have high porosity and low thermal conductivity. Which of the following is not used for inducing porosity in the insulating refractory bricks during its manufacture ? |
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Answer: Option C Explanation: No answer description available for this question. Let us discuss. |
| 28. | Beryllia (which is used in making crucibles for melting uranium & thorium) is superior to alumina in all respects for high temperature (> 1900°C ) use, except |
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Answer: Option A Explanation: No answer description available for this question. Let us discuss. |
| 29. | Refractoriness of a typical silica brick corresponds to Segar cone number, '32', which is equivalent to a temperature of __________ °C. |
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Answer: Option C Explanation: No answer description available for this question. Let us discuss. |
| 30. | Which property of refractories is the most important for top section of the blast furnace? |
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Answer: Option A Explanation: No answer description available for this question. Let us discuss. |
| 31. | Thoria |
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Answer: Option D Explanation: No answer description available for this question. Let us discuss. |
| 32. | Which is not a basic refractory ? |
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Answer: Option D Explanation: No answer description available for this question. Let us discuss. |
