A. Submerged exit gradient
B. Critical exit gradient
C. Balanced exit gradient
D. All are correct
Related Mcqs:
- Specific weight of a liquid is defined as the weight per unit volume at standard Temperature & pressure therefore specific weight of water of water is equal to ____________ kg/m3 in MKS system ?
A. 990
B. 995
C. 999
D. 1000 - 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 - 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 - 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 total energy line lies over the hydraulic gradient line by an amount equal to________________?
A. v2/2g
B. v2/g
C. v/2g
D. v/g - 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 - A dam which the up lift pressure of the sub-soil water by its own weight is called _________________?
A. Buttress dam
B. Arch dam
C. Gravity dam
D. Concrete dam - When ever a body is immersed wholly or partially in water, it is lifted up by a force equal to the weight of water displaced by the body ?
A. Archimed’s Principle
B. Law of gravity
C. Newton’s law of otion
D. None of these - 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 - The percentage of the volume of water filled in voids to the total volume of solids of soil grains is called__________________?
A. Void ratio
B. Degree of compaction
C. Degree of saturation
D. Volume of saturation
