1. Weir is a:
(A) High head structure
(B) None of these
(C) A & B Both
(D) Low head structure
2. Weir is constructed to:
(A) Decrease the water level
(B) Store the water
(C) Control the water flow
(D) Raise the water level
3. When gates are installed perpendicular to water flow, it is called ____:
(A) Weir
(B) Barrage
(C) Dam
(D) Siphon
4. Choose the correct statement:
(A) To provide permanent head work at same water flow
(B) Weir increase the water level but unable to control silt
(C) Weirs are constructed to raise the water level and allow proper silt control
(D) None of these
5. This is a type of weir:
(A) Masonry
(B) Concrete
(C) All of these
(D) Rock filled
6. For construction of head works:
(A) Path should be narrow
(B) Side should be accessible
(C) All of these
(D) Bank should be well defined
7. This is the main body of structure:
(A) Toe wall
(B) Apron
(C) Sheet pipe
(D) Weir breast
8. Main function of ________ is to provide proper anchorage to floor:
(A) Downstream apron
(B) Cut off
(C) Inverted filter
(D) Crest shutters
9. Struts are provided to resist:
(A) Force
(B) Thrust
(C) Friction
(D) Flow
10. Toe walls are provided at:
(A) Upstream side
(B) Downstream side
(C) A & B both
(D) Parallel to flow
11. It consists of sand & gravels:
(A) Sheet pipe
(B) Block protection
(C) Barrage Piers
(D) Inverted filters
12. Adjustable gates are provided for:
(A) Barrages
(B) Dams
(C) Weir
(D) All of these
13. Flow over a rectangular weir can be calculated as:
(A) Q = CLH³/²
(B) Q = CDLH⁵/²
(C) Q = CDLH³/²
(D) Q = CDLH⁵/³
14. When water flows over a weir:
(A) It creates thin sheet of water
(B) Its pressure increases
(C) Energy reduces
(D) All of these
15. The slope of glacis is:
(A) 2:3
(B) 4:3
(C) 4:1
(D) 3:1