According to Blight, the percolating water seeps along the lower contour of the hydraulic structure, the length traversed by this water is called ______________________?

Related Mcqs:

1. 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

2. The contour of equal water heads and pressure in the soil mass beneath retaining structure are called___________________?

   A. Stream lines
   B. Equipotential lines
   C. Equilibrium lines
   D. Streak lines

3. 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

4. The loss of head H/ L is proportional to the length of creep. There fore the loss of head per unit creep length is called ______________________?

   A. Hydraulic gradient
   B. Head loss
   C. Creep length
   D. Exit gradient

5. If E1 is the energy before the hydraulic jump and E2 is the energy after the hydraulic jump the efficiency of jump is then given by _____________________?

   A. E2 – E1
   B. E2 / E1
   C. E1 – E2
   D. E1 / E2

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. At the end of hydraulic structure, the upward force of sub-soil water just becomes equal to the submerged weight of soil grains Then exit gradient will be called______________?

   A. Submerged exit gradient
   B. Critical exit gradient
   C. Balanced exit gradient
   D. All are correct

8. To keep the Hydraulic structure safe against undermining the ________________ should be safe?

   A. Exit gradient
   B. Hydraulic gradient
   C. Creep length
   D. Critical exit gradient

9. A line shown on a contour map, set out on ground between certain constant points of slope is called___________________?

   A. Gradient
   B. Contour gradient
   C. Contour line
   D. Counter interval

10. The field capacity is the water retained by a saturated soil after free drainage of surplus water to the ground water table but the water retained by a saturated soil after being centrifuged by a centrifugal force of 1000 times that of gravity is called________________?

    A. Soil moisture
    B. Equivalent moisture
    C. Field moisture
    D. Available moisture