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The structure which is not used in a shaft...

The structure which is not used in a shaft spillway is ________________

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

The structure which is not used in a shaft spillway is ________________

(a) tunnel

(b) bridge

(c) radial gates

(d) radial piers

This question was posed to me in quiz.

My question is from Shaft Spillway in portion Spillways, Energy Dissipators and Spillway Gates of Irrigation Engineering

irrigation engineering
spillways
energy dissipators and spillway gates
shaft spillway

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1 Answer

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

Correct answer is (c) radial gates

The best explanation: The radial gates consists of steel plates with struts which are pinned at the center of the circular plate. When the water level rises above FRL the gates are raised by hoisting arrangement to allow the flood water to discharge freely. Each gate is separately housed between two piers constructed on the crest.

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