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Q. |
Pick up the correct statement from the following: |
A. | The percentage of absorption for firebricks varies from 5 to 10 |
B. | The percentage of silica in silica bricks is to the extent of about 95 to 97 percent |
C. | Roughly 1 to 2 percent of lime in silica bricks is added to act as binding material |
D. | All the above |
Answer» D. All the above |
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