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.Management Sciences
Category: Water Management
Those crops which increase the nitrogen content of the soil and hence the fertility also are called ___________________?
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A. Leguminous crops
B. Cash crops
C. Fodder
D. Food crops
According to Khosla’s theory of seepage, the Exit gradient depends upon ____________________?
A. width /depth ratio
B. depth /width ratio
C. Length /depth ratio
D. depth /Length ratio
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
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