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Building Materials - Section 7 Multiple Questions and Answers.
| 1. | A bull nose brick is not used for | ||
| A. | rounding off sharp corners | ||
| B. | pillars | ||
| C. | decoration purpose | ||
| D. | arches. | ||
| 2. | Red short iron cracks when bent due to the presence of | ||
| A. | sulphur | ||
| B. | carbon | ||
| C. | phosphorus | ||
| D. | silicon. | ||
| 3. | Linseed oil is used in paints as | ||
| A. | thinner | ||
| B. | vehicle | ||
| C. | base | ||
| D. | drier. | ||
| 4. | Plaster of Paris is obtained by calcining | ||
| A. | bauxite | ||
| B. | gypsum | ||
| C. | kankar | ||
| D. | lime stone | ||
| 5. | For high grade instruments the steel preferred to, is | ||
| A. | cast steel | ||
| B. | bessemer steel | ||
| C. | mild steel | ||
| D. | whitworth compressed steel. | ||
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