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Q. |
If subgrade is soft or weak, a thick sub- base of cheap and inferior materials well compacted should be used. |
A. | false |
B. | true |
Answer» B. true | |
Explanation: in transport engineering, subgrade is the native material underneath a constructed road, pavement or railway (us: railroad) track. it is also called formation level. the term can also refer to imported material that has been used to build an embankment. |
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