A structure made near weirs and barrages to facilitate the migration of fish up stream or down stream is called __________________?

Related Mcqs:

1. A water rise takes place on down stream of sloping glacis, when a stream of water moving with high velocity and low depth strikes another stream of flow moving with low velocity and high depth, such breakage in water surface is called______________?

   A. Water wave
   B. Water tide
   C. Hydraulic jump
   D. Afflux

2. The hydraulic structures like dams, barrages constructed on permeable foundations are likely to fail due to ___________________?

   A. Piping
   B. Crushing
   C. Sliding
   D. All the above

3. A fish ladder is device by which flow energy can be dissipated in such a manner as to provide easy access to the downstream fish to come on upstream side, the velocity of flow varies from___________________?

   A. 2.0 – 2.5 – m/sec
   B. 2.5 – 3 m/sec
   C. 3.0 – 3.5 m/sec
   D. 3.5 – 4.0 m/sec

4. A water pool is designed on the down stream of the hydraulic structure to dissipate the energy of falling water by providing a water cushion called ______________________?

   A. Water pool
   B. Cistern
   C. Down stream pond
   D. Water cushion

5. When seepage water after passing the ground water aquifer joins the surface stream, such stream will be called_____________________?

   A. Influent stream
   B. Effluent stream
   C. Rain stream
   D. Storm stream

6. The down stream sloping glacis of the Hydraulic structure is made in such a way to form automatically the _____________ and dissipate the surplus energy of flowing water?

   A. Afflux
   B. Hydraulic jump
   C. Pond level
   D. HFL

7. The total length of impervious floor on down stream of the hydraulic structure is determined by Bligh’s Theory__________________?

   A. Lane
   B. Darcy
   C. Khosla
   D. All are correct

8. If the weir flood is designed continuous with divide piers as reinforced structure,such that the weight of divide piers, keep the structure safe against uplift, is called__________________?

   A. Non-gravity weir
   B. Gravity weir
   C. Sharp crested weir
   D. Rectangular weir

9. The dam built for the purpose of diverting water from main stream to various courses of flow is called ____________________?

   A. Coffer dam
   B. Detention dam
   C. Diversion dam
   D. Gravity dam

10. If a river or stream is collecting sediment and is building up dunes in its bed is called ______________________?

    A. Stable river
    B. Sub-stable river
    C. Aggrading river
    D. Sediment river