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GATE CE 2022: OPEN CHANNEL FLOW : 64
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Question 1
The depth of water below the spillway and after hydraulic jump are 2 m and 7 m respectively. The head loss will be ______.
Question 2
The pre-jump Froude Number for a particular flow in a horizontal rectangular channel is 10. The ratio of sequent depths (i.e., post-jump depth to pre-jump depth) is ___________
Question 3
A rectangular channel 2m wide carries a discharge 3m3/sec. It is observed that corresponding to a particular specific force, the conjugate depths are such that subcritical depth is thrice the supercritical depth. The subcritical depth (in metres, up two decimal places) is equal to____________.
Question 4
Direction: Each of the following items consists of two statements, one labelled as the ‘Statement (I)’ and the other as ‘Statement (II)’. Examine these two statements carefully and select the answers to these items using the codes below:
Statement (I): Open channel flow in a channel is said to be critical when the specific force is maximum for a given discharge.
Statement (II): Direct integration for steady non-uniform flow by Bresse’s method was developed for very wide rectangular channels.
Statement (II): Direct integration for steady non-uniform flow by Bresse’s method was developed for very wide rectangular channels.
Question 5
A sluice gate used to control the flow in a horizontal channel of unit width is shown in the figure.
It is observed that the depth of flow is 1.0 m upstream of the gate, while the depth is 0.2 m
downstream of the gate. Assuming a smooth flow transition across the sluice gate, i.e., without any energy loss, and the acceleration due to gravity as 10 m/s2, the discharge (in
, up to two decimal places) passing under the sluice gate is_______
It is observed that the depth of flow is 1.0 m upstream of the gate, while the depth is 0.2 m
downstream of the gate. Assuming a smooth flow transition across the sluice gate, i.e., without any energy loss, and the acceleration due to gravity as 10 m/s2, the discharge (in
, up to two decimal places) passing under the sluice gate is_______ Question 6
The relatively rapid flow of water in a horizontal rectangular channel can suddenly "jump" to a higher level (an obstruction downstream may be the cause). This is called a hydraulic jump. The situation is shown in the figure below. The higher depth at downstream is _________m.
[Assume uniform flow]
[Assume uniform flow]
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Jul 9ESE & GATE CE
