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The base width of a rock-fill dam in comparison...

The base width of a rock-fill dam in comparison to that of an earthen dam is _______________

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asked Nov 9, 2023 in Irrigation Engineering by Carter (75.2k points)

The base width of a rock-fill dam in comparison to that of an earthen dam is _______________

(a) much larger

(b) much smaller

(c) sometimes large sometimes smaller

(d) almost equal

The question was asked in quiz.

The origin of the question is Rock Fill Dams topic in chapter Earthen and Rock Fill Dams of Irrigation Engineering

irrigation engineering
earthen and rock fill dams
rock fill dams

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1 Answer

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answered Nov 16, 2023 by Greg (106k points)

The correct option is (b) much smaller

The explanation: Rock-fill dams are less flexible than earthen dams, their foundation requirements are more rigid than those of earthen dams which can be constructed on any type of foundation. Since the steeper slopes are used in rock-fill dams and the base width is quite less.

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