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
Water Management MCQs
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
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
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
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
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
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
Now- a -days the hydraulic structures are designed. Keeping in view the flow net, this was given by __________________?
A. Blight
B. Khosla
C. Lane
D. Darcy
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
Mostly the hydraulic structures founded on ____________ soils fails because of undermining and uplift pressure?
A. Stable
B. Rocky
C. Impermeable
D. Permeable
