Mostly the hydraulic structures founded on ____________ soils fails because of undermining and uplift pressure?
A. Stable
B. Rocky
C. Impermeable
D. Permeable
Water Management
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______________?
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
Now- a -days the hydraulic structures are designed. Keeping in view the flow net, this was given by __________________?
Now- a -days the hydraulic structures are designed. Keeg in view the flow net, this was given by __________________?
A. Blight
B. Khosla
C. Lane
D. Darcy
To avoid scouring from end of structure, it is necessary to provide a ________________ at the exit point?
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
For strong Hydraulic jump containing maximum energy, the down stream glacis should be sloped at a slope of ______________ to dissipate max: energy?
For strong Hydraulic jump containing maximum energy, the down stream glacis should be sloped at a slope of ______________ to dissipate max: energy?
A. 2:1 to 2.5:1
B. 2.5:1 to 3:1
C. 3:1 to 5:1
D. 5:1 to 6
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__________________?
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
The water way from a weir is determined by using Lacey’s wetted perimeter i.e. P=_______(Q)1/2 ?
The water way from a weir is determined by using Lacey’s wetted perimeter i.e. P=_______(Q)1/2 ?
A. 3.50
B. 3.75
C. 4.75
D. 5.75
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 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
A module or outlet in which discharge depends upon the difference of head between distributary and the water course is called ___________________?
A module or outlet in which discharge depends upon the difference of head between distributary and the water course is called ___________________?
A. Non-modular
B. Modular
C. Semi-modular
D. Rigid module
An outlet through which the discharge depends upon the water level in the distributary is called ___________________?
An outlet through which the discharge depends upon the water level in the distributary is called ___________________?
A. Rigid module
B. Flexible module
C. Non-flexible
D. Non-modular