The most efficient channel section, is

A)
triangular
B)
rectangular
C)
semi-circular
D)
half hexagon in the form of trapezoid

Correct Answer :   half hexagon in the form of trapezoid

Recently Updated in Hydraulics Questions
An orifice is taken as large if
A)
(H₂ - H₁) > H
B)
(H₂ - H₁) > H/2
C)
(H₂ - H₁) > H/4
D)
(H₂ - H₁) > H/3

Correct Answer : Option (D) :   (H₂ - H₁) > H/3

A closed cylindrical vessel of 100 cm diameter and 200 cm high is completely filled with a liquid (sp. weight 1600 kg/m3) when rotated about its vertical axis at 100 r.p.m. The total pressure on its lid, is
A)
459 kg
B)
549 kg
C)
945 kg
D)
954 kg

Correct Answer : Option (D) :   954 kg

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)
1.5%
B)
2.0%
C)
2.5%
D)
4.5%

Correct Answer : Option (C) :   2.5%

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