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Building Materials - Section 5 Multiple Questions and Answers.
| 1. | The pigment used in paints for corrosive resistance, is | ||
| A. | white lead | ||
| B. | ferrous oxide | ||
| C. | zinc white | ||
| D. | red lead | ||
| 2. | A well seasoned timber may contain moisture up to | ||
| A. | 4 to 6% | ||
| B. | 6 to 8% | ||
| C. | 8 to 10% | ||
| D. | 10 to 12%. | ||
| 3. | The stones obtained by blasting are used as | ||
| A. | ballast in railways | ||
| B. | aggregates for concrete | ||
| C. | roadmetal | ||
| D. | All the above. | ||
| 4. | Distemper is | ||
| A. | a paint consisting of powdered chalk, pigments, and water | ||
| B. | a water proofing agent | ||
| C. | a paint consisting of coloured cement and water | ||
| D. | a drying agent. | ||
| 5. | Oil varnish generally consists of | ||
| A. | synthetic resin and spirit | ||
| B. | oil, wax and resin | ||
| C. | resin, oil and turpentine | ||
| D. | spirit, oil and wax. | ||
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