FLOW THROUGH OPEN CHANNELS MCQs – CHAPTER 11 DAE 12 min Score: 0 Attempted: 0/12 Subscribe 1. Which of the following is NOT a type of open channel? (A) Canal (B) Culvert (C) River (D) PipeShow All Answers 2. What is the hydraulic radius of an open channel? (A) The ratio of the wetted perimeter to the cross-sectional area (B) The ratio of the cross-sectional area to the wetted perimeter (C) The depth of flow (D) The width of the channelShow All Answers 3. What is the Manning equation used for? (A) To calculate the discharge of an open channel (B) To calculate the velocity of flow in an open channel (C) To calculate the depth of flow in an open channel (D) To calculate the slope of an open channelShow All Answers 4. Which of the following factors affect the Manning roughness coefficient? (A) Channel slope (B) All of the above (C) Channel geometry (D) Channel roughnessShow All Answers 5. Which of the following is NOT a type of flow in open channels? (A) Uniform flow (B) Non-uniform flow (C) Steady flow (D) Critical flowShow All Answers 6. What is the Froude number used for? (A) To determine the slope of an open channel (B) To determine the velocity of flow in an open channel (C) To determine the depth of flow in an open channel (D) To determine if flow is subcritical, critical, or supercriticalShow All Answers 7. What is the critical depth in an open channel? (A) The depth at which flow becomes turbulent (B) The depth at which flow becomes subcritical (C) The depth at which flow becomes supercritical (D) The depth at which flow becomes criticalShow All Answers 8. Which of the following is a method to measure the discharge of an open channel? (A) Flume (B) Weir (C) Pitot tube (D) All of the aboveShow All Answers 9. What is the slope of a channel with a water surface slope of 0.5% and a bottom slope of 0.3%? (A) 0.2% (B) 0.5% (C) 1.0% (D) 0.8%Show All Answers 10. What is the maximum discharge of a rectangular channel with a width of 3 meters and a depth of 2 meters? (A) 4.5 m³/s (B) 6.0 m³/s (C) 9.0 m³/s (D) 12.0 m³/sShow All Answers 11. Which of the following is a type of flow control structure in open channels? (A) Dam (B) Siphon (C) All of the above (D) GateShow All Answers 12. Which of the following is a type of erosion in open channels? (A) Corrosion (B) All of the above (C) Cavitation (D) AbrasionShow All Answers
