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Building Materials - Section 5 Multiple Questions and Answers.
| 36. | Commonly used thinner in | ||
| A. | lacquer paints, is alcohol | ||
| B. | cellulose paints is ethyle acetate | ||
| C. | oil paints, is naptha | ||
| D. | distemper, is water | ||
| 37. | Good quality sand is never obtained from | ||
| A. | river | ||
| B. | nala | ||
| C. | sea | ||
| D. | gravel powder. | ||
| 38. | Pick up the rock which is not a sedimentary rock from the following: | ||
| A. | gravel | ||
| B. | sand stone | ||
| C. | gypsum | ||
| D. | dolerite | ||
| 39. | For a good building stone, its specific gravity should the greater than | ||
| A. | 1.5 | ||
| B. | 1.7 | ||
| C. | 2.2 | ||
| D. | 2.7. | ||
| 40. | Blister steel | ||
| A. | is obtained by cementation process | ||
| B. | is full of fissures and cavities | ||
| C. | can not be forged | ||
| D. | can be easily welded | ||
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