Test: Open Channel Flow Level - 2 - Civil Engineering (CE) MCQ
20 Questions MCQ Test - Test: Open Channel Flow Level - 2
For a wide rectangular channel using Manning’s formula, the differential equation of gradually varied flow (with the usual notations) is given by
If F1 and F2 are the Froude numbers of flow before and after the hydraulic jump occuring in a rectangular channel, then
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The critical depth of flow in a most economical triangular channel section for a discharge of 1 m3/sec is given by
Water flows in a rectangular, concrete, open channel that is 12 m wide. The channel slope is 0.0028. If the velocity of the flow is 6 m/s, find the depth of the flow. (n = 0.013)
A Trapezoidal channel with side slope of 2 V ∶ 3 H, a depth of 2 m, a bottom width of 8 m and a channel slope of 0.0009 has a discharge of 56 m3/s, find the Manning’s n.
Water flow in the triangular steel channel shown in the figure below. Find the depth of flow if the channel slope is 0.0015 and the discharge is 0.22 m3/s (n = 0.014).
Flow depths across a sluice gate are 2 m and 0.5 m. What is the discharge (per metre width) [take g = 9.81 m/s2]
An open channel carries water with a velocity of 0.605 m/s. If the average bed shear stress is 1 N/m2, then the Chezy’s constant C is equal to
A 2 m wide rectangular channel carries a discharge of 3 m3 /s. The specific energy-depth diagram is prepared for the channel. It is observed in this diagram that corresponds to a particular specific energy. The subcritical depth is one and half times the super critical depth. The super critical depth (in meters, upto two decimal places) is equal to __________.
An open channel is to be designed to carry 1 m3/s at a slope of 0.0065. The channel material has an n value of 0.011. Find the optimum hydraulic cross-section for a semicircular section. (in meters, upto two decimal places).
A rectangular open channel of width 6.5 m is carrying a discharge of 150 m3/s. The critical depth of the channel is __________. (in meters, upto two decimal places) [take g = 9.81 m/s2]
The top width and the depth of flow in a triangular channel were measured as 3 m and 1 m respectively. The measured velocities on the centre line at the water surface 0.2 m and 0.8 m below the surface are 0.9 m/s, 0.8 m/s and 0.5 m/s respectively. Using a two-point method of velocity measurement, the discharge (in m3/s) in the channel is __________. (Report your answer upto two place of decimal).
The Froude number of flow in a rectangular channel is 0.85. if the depth of flow is 2 m, the critical depth is __________. (Report your answer upto two place of decimal).
The sequent depth ratio in a rectangular channel is 16. The Froude number of the supercritical flow will be __________. (Report your answer upto two place of decimal).
In a hydraulic jump, the depths on the two sides are 0.6 m and 1.6 m. The head loss in the jump is nearly __________. (in meters, upto two decimal place).
In a wide rectangular channel, an increase in the normal depth to 20% corresponds to how much (in %) increase in discharge? (Report your answer upto two place of decimal).
An open channel is to be designed to carry 1 m3/s at a slope of 0.0065. The channel material has an n value of 0.011. Find the optimum triangular section depth.
M3 Profile is indicated by which of the following conditions. (yO = Normal depth, y = depth of flow, yC = critical depth).
A 2 m wide rectangular channel carries a discharge of 10 m3/s. What would be the depth of flow if the Froude number of the flow is 2.0?
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