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Which of the following is the simplest type of spillway and may be constructed on small bunds or thin arch dams?

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+1 vote
in Irrigation Engineering by (75.2k points)
Which of the following is the simplest type of spillway and may be constructed on small bunds or thin arch dams?

(a) Straight drop spillway

(b) Ogee spillway

(c) Shaft spillway

(d) Siphon spillway

This question was addressed to me in an interview.

I would like to ask this question from Location of Spillway topic in section Spillways, Energy Dissipators and Spillway Gates of Irrigation Engineering

1 Answer

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by (106k points)
The correct choice is (a) Straight drop spillway

To explain: Straight drop weir or Overfall spillway is a low weir and simple vertical fall type structure. It is the simplest type of spillway and can be constructed on small bunds, thin arches, etc. The downstream face of the spillway may be kept vertical or slightly inclined.

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