Browsing category
A river bend characterized by silting_______________? A. scouring on concave side B. silting on convex side C. scouring on convex side and on concave sideD. scouring on concave side and silting on convex side
A land is known as waterlogged_________________? A. when the permanent wilting point is reached B. when gravity drainage has ceasedC. capillary fringe reaches the root zone of plants D. none of the above
A repelling groyne is aligned________________? A. pointing upstream B. pointing downstream C. perpendicular to bank D. parallel to bank
If D is the depth of scour below original bed, then the width of launching apron is generally taken as________________? A. 1.2 DB. 1.5 D C. 2.0 D D. 2.5 D
River training for depth is achieved by_______________? A. groynes B. construction of dykes or leavees C. both (A) and (B)D. groynes and bandalling
An aggrading river is a_________________? A. silting river B. scouring river C. both silting and scouring river D. neither silting nor scouring river
The meander pattern of a river is developed by_________________? A. average dischargeB. dominant discharge C. maximum discharge D. critical discharge
If the R.L’s of canal bed level and high flood level of drainage are 212.0 m and 210.0 m respectively, then cross drainage work will be________________? A. aqueduct B. superpassageC. syphon D. syphon aqueduct
The ratio of rate of change of the discharge of an outlet to the rate of change of the discharge of distributing channel is called________________? A. proportionalityB. flexibility C. setting D. sensitivity
Vertical drop fall is satisfactory for a height upto ___________? A. 0.5 mB. 1.5 m C. 3.5 m D. 5.0 m