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.Management Sciences
Category: Water Management
A digging out of earth to make trench for any engineering purpose is called ______________________?
A. Excavation
B. Cavitations
C. borrow pitting
D. Earth filling
The centre of pressure of a plane submerged area which holds it in equilibrium is ____________________?
A. Always below the centre of gravity of the area
B. Coincident with centroid of area if its plane is vertical
C. Always above the centroid of the area
D. Independent of the inclination of area
The soil which are formed due to the weathering effects particularly by movement of water and are high permeable are called _________________?
A. Alluvial soils
B. Non-alluvial soils
C. Impervious soils
D. Semi-impervious soils
The process of consolidation of stabilized earth work in canal or river embankments. In this process the soil is deposited in layers of specified thickness and at a particular moisture content is called __________________?
A. Soil stabilization
B. Densification
C. Compaction
D. All are correct
The value of coefficient of discharge in comparison to cofficient of velocity is found to be ____________________?
A. Lesser
B. More
C. Equal
D. Zero
The flow in the river due to the floods may be classified as _____________________?
A. Laminar flow
B. Stream line flow
C. Irrotational flow
D. Turbulent flow
The groyne pointing downwards in the direction of flow in fiver is called________________?
A. Permeable
B. Impermeable
C. repelling
D. Attracting
If a river or stream is collecting sediment and is building up dunes in its bed is called ______________________?
A. Stable river
B. Sub-stable river
C. Aggrading river
D. Sediment river
The groyne pointing upwards direction of flow is called ______________________?
A. Attracting
B. Repelling
C. Impermeable
D. Permeable
Sediment particles smaller than 0.002 mm which do not settle in water are called____________________?
A. Fine silt particles
B. Fine clay particles
C. Colloids
D. All are correct
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