FLOW OVER WEIR MCQs – CHAPTER 10 DAE 10 min Score: 0 Attempted: 0/10 Subscribe 1. A weir is a structure built across a river or canal to: (A) None of the above (B) Store water (C) Divert water (D) Control water flowShow All Answers 2. The purpose of a weir is to: (A) Decrease the velocity of water (B) Increase the velocity of water (C) Store water (D) None of the aboveShow All Answers 3. The type of flow that occurs over a weir is: (A) Laminar flow (B) Steady flow (C) Transitional flow (D) Turbulent flowShow All Answers 4. The height of water above the weir crest is known as: (A) Weir crest (B) Backwater (C) Weir height (D) FreeboardShow All Answers 5. The most common shape of a weir is: (A) Rectangular (B) Triangular (C) Trapezoidal (D) CircularShow All Answers 6. The discharge over a weir is proportional to: (A) The width of the weir (B) The depth of water over the weir (C) The length of the weir (D) The height of the weirShow All Answers 7. The critical depth of flow over a weir is the depth at which: (A) The water begins to spill over the weir (B) The water reaches its maximum velocity (C) The water becomes turbulent (D) The water becomes subcriticalShow All Answers 8. A submerged weir is a weir: (A) Whose crest is always above the water surface (B) Whose crest is sometimes above and sometimes below the water surface (C) Whose crest is always below the water surface (D) None of the aboveShow All Answers 9. The formula used to calculate the discharge over a rectangular weir is: (A) Francis formula (B) Khosla's equation (C) Chezy's formula (D) Nappe formulaShow All Answers 10. The velocity of water over a weir crest is: (A) Constant (B) Increasing (C) Decreasing (D) ZeroShow All Answers