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The greater is the heading up of water at the inlet end, the greater will be the flow velocity in case of culvert across some flat terrain.

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+1 vote
in Irrigation Engineering by (75.2k points)
The greater is the heading up of water at the inlet end, the greater will be the flow velocity in case of culvert across some flat terrain.

(a) True

(b) False

The question was posed to me in semester exam.

This intriguing question originated from Small Road Bridges Construction in division Culverts and Small Road Bridges Construction of Irrigation Engineering

1 Answer

0 votes
by (106k points)
Right choice is (a) True

The explanation: In such cases, the design is based on an increased velocity of flow through the culvert. The water is allowed to head up at the inlet end of the culvert to create that velocity. The greater is the heading up of water, the greater is the head causing flow. Hence, the greater will be the flow velocity and lesser is the opening area.

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