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161.

The discharge over a rectangular notch is

A.	inversely proportional to H3/2	B.	directly proportional to H3/2
C.	inversely proportional to H5/2	D.	directly proportional to H5/2

162.

The discharge over a triangular notch is

A.	inversely proportional to H3/2	B.	directly proportional to H3/2
C.	inversely proportional to H5/2	D.	directly proportional to H5/2

163.

The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch

plus

minus

164.

An error of 1% in measureing head over the crest of the notch (H) will produce an error of

A.	1%	B.	1.50%
C.	2%	D.	2.50%

165.

An error of 1% in measuring head over the apex of the notch (H) will produce an error of

A.	1%	B.	1.50%
C.	2%	D.	2.50%

166.

A structure used to dam up a stream or river over which the water flows is called

A.	orifice	B.	notch
C.	weir	D.	dam

167.

The difference between the notch and weir is that the notch is of bigger size and the weir is of a smaller size.

Agree

Disagree

168.

A weir is usually made of masonry or concrete.

Yes

169.

The sheet of water flowing over a notch or a weir is known as

A.	sill or crest	B.	nappe or vein
C.	orifice	D.	none of these

170.

To to of the weir over which the water flows in known as

A.	sill or crest	B.	nappe or vein
C.	oriffice	D.	none of these