Q. The height of water on upstream and downstream side of a submerged weir of 4 m length are 24 cm and 13 cm. If Cd for free and drowned portions are .62 and .78 respectively, find the discharge over the weir.

View solution

Q. An Ogee weir 5 m long had a head of 40 cm of water. If Cd = 0.61, find the discharge over the weir.

View solution

Q. For discharge over ogee weir discharge is directly proportional to length but for discharge over narrow crested weir it is inversely proportional to length.

View solution

Q. In discharge of water over ogee weir, discharge is directly proportional to the second power of length.

View solution

Q. In discharge of water over narrow crested weir, discharge is directly proportional to the cube root of acceleration due to gravity.

View solution

Q. In discharge of water over narrow crested weir, head of water is directly proportional to Discharge Coefficient.

View solution

Q. Find the discharge over a cipolletti weir of length 1.3 m when the head over the weir is 0.65 m. Take Cd = 0.60.

View solution

Q. Find the discharge over a cipolletti weir of length 1.5 m when the head over the weir is 0.85 m. Take Cd = 0.61.

View solution

Q. The head of water over a rectangular weir is 26 cm. The length of the crest of the weir end contraction suppressed is 1.25 m. Find the discharge using the Francis formula.

View solution

Q. The head of water over a rectangular weir is 28 cm. The length of the crest of the weir end contraction suppressed is 1.27 m. Find the discharge using the Francis formula.

View solution

Q. The head of water over a rectangular weir is 38 cm. The length of the crest of the weir end contraction suppressed is 1.3 m. Find the discharge using the Francis formula.

View solution

Q. In Bazin’s formula, the discharge is inversely proportional to the length of weir.

View solution

Q. In Francis empirical expression for discharge, the relation between head of water and discharge is

View solution

Q. In Francis formula, the effective length is

View solution

Q. What is the reduction in crest length due to each end contraction?

View solution

Q. Rectangular notch may or may not have ventilation.

View solution

Q. We need to obligatorily have ventilation in triangular notch.

View solution

Q. What is main reading required in calculation for rectangular notch or weir.

View solution

Q. The results of which are more accurate; rectangular notch or triangular weir.

View solution

Q. The expression for discharge for a right angled notch is more complex than rectangular notch.

View solution