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If subgrade is soft or weak, a thick sub-base of cheap and inferior materials well compacted should be used.

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in Civil Engineering Drawing by (128k points)
If subgrade is soft or weak, a thick sub-base of cheap and inferior materials well compacted should be used.

(a) False

(b) True

I got this question in a national level competition.

My doubt is from General Specifications of Modern Road in section Specifications, Estimation of Quantities of Materials and Transport of Civil Engineering Drawing

1 Answer

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Best answer
Correct choice is (b) True

The best I can explain: 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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