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| Q. |
The water proof mud- plaster consists of |
| A. | soil |
| B. | janta emulsion |
| C. | cowdung |
| D. | soil, janta emulsion and cowdung |
| Answer» D. soil, janta emulsion and cowdung | |
| Explanation: soil – soil should not be too much clayey nor too much sandy (50% clay and 50% sand are suitable). weight of dry earth should do about 112 kg per cu m (70 lbs per cu ft). | |
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