Related Questions

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
The critical depth for a channel is given by (where q = Unit discharge (discharge per unit width) through the channel)
A $${\left( {\frac{{\text{q}}}{{\text{g}}}} \right)^{\frac{1}{2}}}$$
B $${\left( {\frac{{{{\text{q}}^2}}}{{\text{g}}}} \right)^{\frac{1}{3}}}$$
C $${\left( {\frac{{{{\text{q}}^3}}}{{\text{g}}}} \right)^{\frac{1}{4}}}$$
D $${\left( {\frac{{{{\text{q}}^4}}}{{\text{g}}}} \right)^{\frac{1}{5}}}$$
The ratio of the depth of flow to the diameter of the channel for maximum discharge in a circular channel in open channel flow is
A 0.1
B 0.55
C 0.95
D 1.85
The discharge through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.
A 0.34 times
B 0.67 times
C 0.81 times
D 0.95 times
The most economical channel section for the fluid flow is the one for which the discharge is maximum for a given cross-sectional area. Vertical velocity distribution in an open channel for laminar flow can be assumed to be
A Parabolic
B Hyperbolic
C Straight line
D None of these
The most economical section of a trapezoidal channel is one which has hydraulic mean depth equal to
A $$\frac{1}{2}$$ × depth
B $$\frac{1}{2}$$ × breadth
C $$\frac{1}{2}$$ × sloping side
D $$\frac{1}{4}$$ × (depth + breadth)
The ratio of the depth of flow to the hydraulic radius for the most economical trapezoidal section, in open channel flow is
A 0.5
B 1
C 1.5
D 2
The discharge through a channel of rectangular section will be maximum, if
A Its depth is twice the breadth
B Its breadth is twice the depth
C Its depth is thrice the breadth
D Its breadth is thrice the depth
The ratio of the hydraulic radius to the diameter of the channel, for maximum mean velocity of flow in a circular channel, in open channel flow is
A 0.3
B 0.9
C 0.03
D 0.66
The velocity through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.
A 0.34 times
B 0.67 times
C 0.81 times
D 0.95 times

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