+1 vote
in Geotechnical Engineering I by (102k points)
To check the seepage of water through the body of dam, the core provided is ________

(a) pervious

(b) semi-pervious

(c) impervious

(d) hollow

The question was posed to me in an online interview.

Origin of the question is Capillary Siphoning topic in chapter Soil Water Effective and Neutral Stresses of Geotechnical Engineering I

1 Answer

+1 vote
by (727k points)
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Best answer
Correct choice is (c) impervious

Easy explanation: The core of the dam is provided with an impervious material to prevent the seepage of the water through the core. If a pervious material is used, then the whole structure would easily collapse.

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