A series of vertical steps in a stream made to avoid soil scouring is called ___________________?

Related Mcqs:

1. To avoid scouring from end of structure, it is necessary to provide a ________________ at the exit point?

   A. Vertical cutoff
   B. Stone apron
   C. Stone boom
   D. Stone blocks

2. 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

3. The law that states that the discharge of sub-soil water is directly proportional to the loss of head and the area of soil sample and inversely proportional to to the length of soil sample ___________________?

   A. Archimed’s principle
   B. Darcy’s law
   C. Permeability law
   D. Thiem’s law

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

   A. Fish ladder
   B. Fish escape
   C. Fish pool
   D. Fish pond

5. A channel artificially constructed for water conveyance of appreciable quantities with no problem of silting and scouring is called ____________________?

   A. A regime canal
   B. Stable canal
   C. Alluvial canal
   D. A and B are correct

6. 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

7. In alluvial river due to the action of centrifugal force, bends are developed by scouring on concave and silting on convex _____________________?

   A. Silting & scouring
   B. Meandering
   C. Aggrading
   D. Degrading

8. The field capacity is the amount of water retained by a saturated soil mass after being acted by gravity. The amount of water required to bring the soil moisture content of that soil up to field capacity is called__________________?

   A. Soil-moisture deficiency
   B. Field-moisture deficiency
   C. Equivalent-moisture deficiency
   D. a and b are correct

9. For a perfect incompressible liquid flowing in a continuous stream, the total energy of a particle remain the same, while the liquid particle move from one point to another this statement is called ___________________?

   A. Continuity Equation
   B. Pascal s law
   C. Bernoulli equation
   D. Archimede’s principle

10. That part of the flow in a stream comes from sub-soil or valley, may be beneath the top surface of channel bed is called__________________?

    A. Sub-surface flow
    B. Base flow
    C. Ground flow
    D. All are correct