In a Sarda type fall, the rectangular crest, may be used for discharge up to

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

If H and d are the water depth and drop in the bed level at a Sarda fall, the width B of the trapezoidal crest, is given by

A

$${\text{B}} = 0.22\sqrt {{\text{H}} + {\text{d}}} $$

B

$${\text{B}} = 0.33\sqrt {{\text{H}} + {\text{d}}} $$

C

$${\text{B}} = 0.44\sqrt {{\text{H}} + {\text{d}}} $$

D

$${\text{B}} = 0.55\sqrt {{\text{H}} + {\text{d}}} $$

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

$${\text{CL}}{{\text{H}}^{\frac{1}{2}}}$$

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

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

A weir is said to be broad 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

The depth of the crest of a scouring sluice below the crest of a head regulator, is generally kept

A

0.20 m

B

1.20 m

C

2.20 m

D

3.20 m

The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch.

A

Plus

B

Minus

C

Divide

D

None of these

Rectangular ABCD is similar to rectangular EFGH. The length of each side of rectangle EFGH is 24 times the length of corresponding side of rectangle ABCD.The perameter of rectangular ABCD is 120 feet.What is the parameter of rectangular paramaeter EFGH?

A

288feet

B

345.6feet

C

576feet

D

691.2feet

The area of a rectangular field is 52000 sq. meters. This rectangular area has been drawn on a map to the scale 1 cm to 100 m. The length is shown as 3.25 cm on the map. The breadth of the rectangular field in the map is -

A

1.6 m

B

160 m

C

160 cm

D

1.6 cm

In a Sarda type fall, the rectangular crest, may be used for discharge up to

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