A troublesome and oscillating hydraulic jump is normally met in cases of _____________

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A very steady and stable hydraulic jump is usually formed in the flows involving the approaching Froude number in the range of _____________________

asked Nov 9, 2023 in Irrigation Engineering by Carter (75.2k points)

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The percentage of energy dissipation in a hydraulic jump increases with the increase in the Froude number.

asked Nov 9, 2023 in Irrigation Engineering by Carter (75.2k points)

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The formation of hydraulic jump at the foot of a spillway is one of the common methods of energy dissipation because ______________________

asked Nov 16, 2023 in Irrigation Engineering by Carter (75.2k points)

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The Froude number of a hydraulic jump is 5.5. The jump can be classified as ____________

asked Sep 26, 2023 in Irrigation Engineering by Carter (75.2k points)

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The energy dissipation at the toe of the spillway is affected basically by the use of hydraulic jump in _______________________

asked Sep 5, 2023 in Irrigation Engineering by Carter (75.2k points)

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Which of the following helps in dissipating the residual energy and to reduce the length of the jump or the basin?

asked Nov 9, 2023 in Irrigation Engineering by Carter (75.2k points)

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Which of the following stilling basin help in stabilizing the flow and improve the jump performance?

asked Nov 9, 2023 in Irrigation Engineering by Carter (75.2k points)

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When the tail-water depths in the river downstream of a spillway are quite low such that the tail-water curve at all discharges lies below the post jump depth curve, then the energy dissipation can be affected best by ___________________

asked Sep 26, 2023 in Irrigation Engineering by Carter (75.2k points)

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A ski-jump bucket is also known as _____________________

asked Sep 25, 2023 in Irrigation Engineering by Carter (75.2k points)

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When the Froude number is in the range of 2.5 to 4.5, the jump is ____________________

asked Nov 16, 2023 in Irrigation Engineering by Carter (75.2k points)

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The most ideal condition for energy dissipation in the design of spillways is the one when the tail-water rating curve coincides with the jump rating curve at all discharge.

asked Sep 25, 2023 in Irrigation Engineering by Carter (75.2k points)

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The device which does not help in energy dissipation at the bottom of a hydraulic structure over which water spills is ________________

asked Sep 25, 2023 in Irrigation Engineering by Carter (75.2k points)

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A sloping apron is provided partly above the river bed and partly below the river bed in case of ____________________________

asked Sep 26, 2023 in Irrigation Engineering by Carter (75.2k points)

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Standard stilling basin is provided at the toe of a dam spillway for energy dissipation is usually provided with auxiliary devices like chute blocks and dentated sills for the basic purpose of reducing the length of the stilling basin from about ________________

asked Sep 25, 2023 in Irrigation Engineering by Carter (75.2k points)

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In the case of dam spillways, the approaching Froude number usually lies in the range of __________

asked Nov 9, 2023 in Irrigation Engineering by Carter (75.2k points)

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What is the expected solution for the case when the T.W.C is lying above the J.H.C curve at all discharges?

asked Sep 25, 2023 in Irrigation Engineering by Carter (75.2k points)

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Which of the following stilling basin is applicable to only rectangular cross-sections?

asked Sep 17, 2023 in Irrigation Engineering by Carter (75.2k points)

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Standard USBR stilling basin-II is useful for energy dissipation at the bottom of the overflow structure, if the approaching Froude number is ________________

asked Sep 5, 2023 in Irrigation Engineering by Carter (75.2k points)

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_____________________ are suitable only for low spillways or weirs.

asked Nov 16, 2023 in Irrigation Engineering by Carter (75.2k points)

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When the gated sluices are provided through the body of the dam spillway then the ogee spillway structure shall normally be of Corbel type.

asked Sep 25, 2023 in Irrigation Engineering by Carter (75.2k points)

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The minimum slope of the chute is governed by the condition that _____________

asked Nov 9, 2023 in Irrigation Engineering by Carter (75.2k points)

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Calculate the effective length of the spillway which consists of 6 spans having a clear width of 10 m each. The thickness of each pier may be taken as 2.5 m and the total design head on the crest including velocity head is 16.3 m. Assuming 90° cut water nose piers and rounded abutments.

asked Nov 9, 2023 in Irrigation Engineering by Carter (75.2k points)

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An ogee spillway of a concrete gravity dam having FRL of 328 m and MWL of 340 m is provided with vertical gates between piers erected on the spillway. The effective length of the spillway is 60 m. The discharge through the spillway when gates are opened up to the actual reservoir level of 331.0 m will be_____________

asked Nov 9, 2023 in Irrigation Engineering by Carter (75.2k points)

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For a saddle siphon, the maximum operative head is 4.53 m. The width and height of the throat of the siphon are 5 m and 2.25 m respectively. The coefficient of discharge is 0.90. How many units are required to pass a flood of 350 cumecs? (Assume g = 10 m/s^2)

asked Sep 25, 2023 in Irrigation Engineering by Carter (75.2k points)

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Calculate the freeboard for the top levels of the side walls if the mean velocity of water in the chute reach is 3.5 m/s and the mean depth of water in the chute reach under consideration is 4.7 m.

asked Nov 16, 2023 in Irrigation Engineering by Carter (75.2k points)

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