The weir with thick crest is known as

The weir with thick crest is known as Correct Answer Broad crested weir

Drowned weir:  When the liquid level on the discharged side is above the weir crest

Broad crested weir: It has a broad crest and the flowing fluid has a surface contact with the weir crest

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Suppresses weir:  It is as wide as the channel and the width of the nappe is same as the length of the crest. There is no lateral contraction of the flow stream.

Free weir: Liquid level on the downstream side is below the weir crest. Both the upper and lower surfaces of the nappe are exposed to the atmosphere.

Related Questions

As compared to crest of the normal portion of the weir, the crest of the under sluice portion of weir is kept at
Statement (I): The ogee spillway is a control weir having an S-shaped crest profile which provides a high discharge coefficient without causing cavitations. Statement (II): The crest profile of ogee spillway conforms to the lower nappe of flow over a ventilated sharp-crested weir and ensures a constant discharge coefficient for all heads.
The discharge over a rectangular weir, considering the velocity of approach, is (where H1 = H + Ha)
(H1 = Total height of water above the weir, H = Height of water over the crest of the weir and Ha = Height of water due to velocity of approach)
When the water level on the downstream side of a weir is above the top surface of a weir, the weir is known as