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GATE Hydraulics: Channel hydraulics: specific energy, critical flow, uniform flow, hydraulic jump – Previous Year Questions

16 GATE previous year questions on Channel hydraulics: specific energy, critical flow, uniform flow, hydraulic jump (Hydraulics, Civil Engineering) with answers and explanations, from every paper.

  1. GATE 2023 CE (CE1) Q60 (2 marks, Numerical answer) – A hydraulic jump occurs in a 1.0 m wide horizontal, frictionless, rectangular channel, with a pre-jump depth of 0.2 m and a post-jump depth of 1.0 m.…
  2. GATE 2024 CE (CE2) Q35 (1 mark, Numerical answer) – A 2 m wide rectangular channel is carrying a discharge of 30 m3/s at a bed slope of 1 in 300. Assuming the energy correction factor as 1.1 and…
  3. GATE 2024 CE (CE2) Q41 (2 marks, Multiple choice) – A round-bottom triangular lined canal is to be laid at a slope of 1 in 1500, to carry a discharge of 25 m3/s. The side slopes of the canal…
  4. GATE 2024 CE (CE2) Q59 (2 marks, Numerical answer) – A rectangular channel is 4.0 m wide and carries a discharge of 2.0 m3/s with a depth of 0.4 m. The channel transitions to a maximum width contraction…
  5. GATE 2024 CE (CE1) Q20 (1 mark, Multiple choice) – The number of degrees of freedom for a natural open channel flow with a mobile bed is
  6. GATE 2024 CE (CE1) Q57 (2 marks, Numerical answer) – A standard round bottom triangular canal section as shown in the figure has a bed slope of 1 in 200. Consider the Chezy's coefficient as 150 m1/2/s.…
  7. GATE 2024 CE (CE1) Q58 (2 marks, Numerical answer) – A spillway has unit discharge of 7.5 m3/s/m. The flow depth at the downstream horizontal apron is 0.5 m. The tail water depth (in meters) required to…
  8. GATE 2025 CE (CE2) Q16 (1 mark, Multiple choice) – A hydraulic jump occurs in an open channel when the slope of the channel changes from .
  9. GATE 2025 CE (CE2) Q42 (2 marks, Multiple choice) – Consider flow in a long and very wide rectangular open channel. Width of the channel can be considered as infinity compared to the depth of flow.…
  10. GATE 2025 CE (CE1) Q60 (2 marks, Numerical answer) – A hydraulic jump is formed in a 5 m wide rectangular channel, which has a horizontal bed and is carrying a discharge of 15 m3/s. The depth of water…
  11. GATE 2025 CE (CE1) Q62 (2 marks, Numerical answer) – A 5.0 m wide rectangular channel carries a discharge of 10 m3/s at a depth of 1.5 m under uniform flow. To produce critical flow conditions without…
  12. GATE 2026 CE (CE2) Q52 (2 marks, Numerical answer) – Width (in m) of a rectangular channel required to carry a discharge of 96 m3/s at a critical depth of 9.8 m is (*rounded off to two decimal places*).…
  13. GATE 2026 CE (CE2) Q55 (2 marks, Numerical answer) – The flow depth for a discharge of 10 m3/s in a wide rectangular channel is 2.0 m. Assume that the flow is uniform. If the discharge is doubled, the…
  14. GATE 2026 CE (CE1) Q23 (1 mark, Multiple select) – Gradually Varied Flow (GVF) profiles in open channels given in Column 1 are to be matched with the water surface slopes in Column 2 in the table…
  15. GATE 2026 CE (CE1) Q40 (2 marks, Multiple choice) – For a hydraulic jump formed in a rectangular horizontal channel, the sequent depth ratio is 2. The Froude number of supercritical stream is
  16. GATE 2026 CE (CE1) Q54 (2 marks, Numerical answer) – A wide unlined channel carries sediment-free water. The depth of water is 1 m. The specific weight of water is 10 kN/m3. To prevent scouring, the…