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Building Materials - Section 7 Multiple Questions and Answers.
| 41. | Granite mainly composed of quartz and felsper particles, is obtained from | ||
| A. | sedimentary rocks | ||
| B. | metamorphic rocks | ||
| C. | igneous rocks | ||
| D. | all the above. | ||
| 42. | Bullet proof glass is made of thick glass sheet sandwiched by a layer of | ||
| A. | steel | ||
| B. | stainless steel | ||
| C. | high test plastic | ||
| D. | chromium plate. | ||
| 43. | Pig iron obtained from the furnance which is properly provided with fuel at a very high temperature, is called | ||
| A. | Bessemer pig | ||
| B. | Grey or foundry pig | ||
| C. | White or forge pig | ||
| D. | Mottled pig | ||
| 44. | Refractory bricks are | ||
| A. | neutral refractory bricks | ||
| B. | acid refractory bricks | ||
| C. | basic refractory bricks | ||
| D. | all the above. | ||
| 45. | Porcelain is used as : | ||
| A. | sanitary wares | ||
| B. | electric insulators | ||
| C. | storage vessels | ||
| D. | All of the above. | ||
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