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| Q. |
The surfaces of which intersect one another in lines which are called line of intersection. |
| A. | true |
| B. | false |
| Answer» A. true | |
| Explanation: in engineering practice, objects constructed may have constituent parts, the surfaces of which intersect one another in line which are called line of intersection. a dome fitted on a boiler is one such example. the surface of the dome extends up to the line of intersection only. | |
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