Related Questions

A weir is said to be narrow-crested weir, if the width of the crest of the weir is __________ half the height of water above the weir crest.
A Equal to
B Less than
C More than
D None of these
In a broad-crested weir, the discharge is maximum if the head of water on the downstream side of weir is __________ the head of water on the upstream side of weir.
A Equal to
B One-third
C Two-third
D Three-fourth
As compared to crest of the normal portion of the weir, the crest of the under sluice portion of weir is kept at
A lower level
B higher level
C same level
D any of the above depending on the design
The discharge over a broad crested weir is maximum when the depth of flow is (where H is the available head)
A $$\frac{{\text{H}}}{3}$$
B $$\frac{{2{\text{H}}}}{3}$$
C $$\frac{{\text{H}}}{2}$$
D $$\frac{{2{\text{H}}}}{5}$$
The maximum discharge over a broad crested weir is
A $$0.384{{\text{C}}_{\text{d}}} \times {\text{L}} \times {{\text{H}}^{\frac{1}{2}}}$$
B $$0.384{{\text{C}}_{\text{d}}} \times {\text{L}} \times {{\text{H}}^{\frac{3}{2}}}$$
C $$1.71{{\text{C}}_{\text{d}}} \times {\text{L}} \times {{\text{H}}^{\frac{1}{2}}}$$
D $$1.71{{\text{C}}_{\text{d}}} \times {\text{L}} \times {{\text{H}}^{\frac{3}{2}}}$$
When the water level on the downstream side of a weir is above the top surface of a weir, the weir is known as
A Narrow-crested weir
B Broad-crested weir
C Ogee weir
D Submerged weir
Due to each end contraction, the discharge of rectangular sharp crested weir is reduced by
A 5%
B 10%
C 15%
D 20%
A man sells chocolates which are in the boxes. Only either full box or half a box of chocolates can be purchased from him. A customer comes and buys half the number of boxes which the seller had plus half box more. A second customer comes and purchases half the remaining number of boxes plus half a box. After this the seller is left with no chocolate boxes. How many chocolate boxes the seller had initially?
A 2
B 3
C 4
D 3.5
E None of these
The ratio of the discharge over a trapezoidal crest to a rectangular crest of Sarda falls of identical parameters, is
A 1.084
B 1.074
C 1.064
D 1.054
The discharge passing over an ogee spillway is given by (where, L is effective length of spillway crest and H is the total head over the spillway crest including velocity head.)
A $${\text{CL}}{{\text{H}}^{\frac{3}{2}}}$$
B $${\text{CH}}{{\text{L}}^{\frac{3}{2}}}$$
C $${\text{CL}}{{\text{H}}^{\frac{5}{2}}}$$
D $${\text{CL}}{{\text{H}}^{\frac{1}{2}}}$$

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