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.Management Sciences
Category: Water Management
The wall of masonry or concrete, constructed at 90° to the axis of weir to separate normal weir from under sluices is called____________________?
A. Divide wall
B. Retaining wall
C. Toe wall
D. All are correct
The dam built for the purpose of diverting water from main stream to various courses of flow is called ____________________?
A. Coffer dam
B. Detention dam
C. Diversion dam
D. Gravity dam
The level above the or below the sea level which is also called zero level or datum is called ___________________?
A. Reduce level
B. Positive level
C. Soil level
D. Negative level
In study of a granular material sliding on plane ground, the angle between the perpendicular and the surface in static condition is called ___________________?
A. Angle of friction
B. Angle of internal friction
C. Angle of repose
D. All are correct
Water available above the top of root zone of plants is about 15% of soil moisture contents, is mostly not available to plants celled_________________?
A. Capillary water
B. Irrigation water
C. Effective water
D. Hygroscopic water
Silt free water should be supplied to the canals through______________________?
A. Under sluices
B. Head sluices
C. Scouring sluices
D. Sluice gates
It is important to keep the saturation gradient line within the body of a embankment of canal, the saturation gradient line in loomy soils lie at___________________?
A. 1:2 to 1:4
B. 1:3 to 1:5
C. 1:4 to 1:6
D. 1:5 to 1:7
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
The piles driven in low bearing capacity soil which does not rest on hard rock but bears the coming load due to side resistance is called ________________?
A. Load Bearing
B. Frictional pile
C. Cost-in situ piles
D. All are correct
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