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___________________?

Related Mcqs:

1. When a weir is constructed, the downstream .bed of the river goes on eroding and consequently causes progressive lowering of the bed on downstream of weir called__________________?

   A. Retrogression
   B. Lowering down of bed
   C. Ponding on down stream
   D. All are correct

2. The under sluices in a weir are provided, at the level of upstream floor dispose off the sediment deposited on downstream is called______________________?

   A. Under sluices
   B. Head sluices
   C. Scouring sluices
   D. Sluice gates

3. When reservoir is full on upstream side, the maximum stress comes upon__________________?

   A. Top of dam
   B. Bottom of dam
   C. Face of dam
   D. All are correct

4. The water level required on the upstream side of a canal head regulator, so as to feed the off-taking canal with its full supply is called_________________?

   A. HFL
   B. FSL
   C. Pond level
   D. Canal level

5. 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

6. A flow of water for a certain discharge when total energy of flow i.e. sum of potential, kinetic and pressure energies is minimum is called_______________________?

   A. Shooting flow
   B. Critical flow
   C. Sub-critical flow
   D. Normal flow

7. Pilot tube is a device, which convert velocity head of flowing water into pressure by ____________________?

   A. H = v2/2g
   B. H = v/g
   C. H = v2 / g2
   D. H = v2 / g

8. The velocity in a large canal or channel measured at a depth of ___________________ gives the mean velocity using the current meter?

   A. 0.6m
   B. 0.5m
   C. 0.6 depth
   D. 0.5 depth

9. The structures, which are constructed on the river bed upstream of head regulator. With this clear water enters in canal such structures are called______________________?

   A. Silt excluders
   B. Silt ejectors
   C. Vortex pipes
   D. Silt control structures

10. The various works constructed on river side to control the flow and pass it safely from hydraulic structures are called ___________________?

    A. River controlling works
    B. River Training works
    C. Marginal Embankment
    D. Guide Banks