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Which of the following statements is CORRECT with respect to 'Notch'/'Weir'?

Which of the following statements is CORRECT with respect to 'Notch'/'Weir'? Correct Answer Notch is used to measure small flow rate.

Explanation:

NOTCH

WEIR

A notch may be defined as an opening provided on one side of a tank or reservoir with an upstream liquid level below the top edge of the opening.

A weir may be defined as a structure constructed across a river or a canal to store water on the upstream side.

The bottom edge of a notch over which water flows is known as sill or crest.

The top of the weir over which water flows is known as the crest.

A notch is usually made of a metallic plate.

A weir is made of a cemented concrete or masonry.

A notch is used to measure the small discharge of a small stream or canal.

A weir is used to measure the large discharge of rivers and large canals.

Notches are of small size.

Weirs are of big size.

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