393. The side slope of Cipolletti weir is generally kept

A. 1 to 4

B. 1 to 3

C. 1 to 2

D.1 5.

394. The discharge over a Cipolletti weir of length 2.185 in when the head over the weir is 1 m, is

A. 2.0 m3

B. 2.5 1113

C.3.0 m3

D. 4.0 m3,

395. In Chezy's formula V = C 4. 0.50

A. V is the mean velocity of flow

B. m is the hydraulic mean depth

C. i is the loss of head per unit length of pipe

D.

396. Pick up the incorrect statement from to following regarding triangular notch :

A. For measuring low discharge, it gives more accurate result?

B. Only one reading (i.e. II) is required for computation of discharge

C. Ventilation is necessary

D. None of these.

397. Pick up the correct statement from the following :

A. Discharge over a triangular notch is proportional toH512

B. Discharge over a rectangular notch is proportional to

C. Both (a) and (b)

D. Neither (a) nor (b).

398. An error of 1% in measuring the head of water over the crest of a rectangular weir, produces an error in the discharge which is equal to

A.1.25%

B.1.50%

C.1.75%

D. 2.25%.

399. An error of 1% in measuring the head of water over the crest of a triangular notch, produces an error in the discharge which is equal to

A.1.25%

B.1.50%

C.2.00%

D. 2.5%.

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