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

Related Mcqs:

1. According to Mr. Khosla, the seeping water creates undermining and the undermining starts from__________________?

   A. Down stream to up stream
   B. Up stream to down stream
   C. Top to bottom
   D. Bottom to top

2. 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

3. Mostly the hydraulic structures founded on ____________ soils fails because of undermining and uplift pressure?

   A. Stable
   B. Rocky
   C. Impermeable
   D. Permeable

4. Hydraulic structures are designed for a safe flow of flood. The floods which are equal in designed magnitude life of the project is called _____________________?

   A. High floods
   B. Ordinary floods
   C. Low floods
   D. Probable flood

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

   A. Creep length
   B. Seeping length
   C. Piping
   D. Undermining

8. 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

9. 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

10. 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