Civil Engineering - Water Resources Engineering

Exercise : Water Resources Engineering - Section 1
36.
If the potential infiltration of a water shed having a soil with fair pasture cover, is 10 cm and rainfall is 12 cm, the direct run off is :
2 cm
3 cm
5 cm
8 cm.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

37.
The quantity of water retained by the sub-soil against gravity, is known
yield
porosity
specific yield
specific retention
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

38.
Pick up the incorrect statement from the following :
The rate of flow of water through a unit cross-sectional area under a unit hydraulic gradient, is called coefficient of permeability
The rate of flow of water through a vertical strip of the acquifer of unit width and full depth under a unit hydraulic gradient, is called coefficient of transmissibility
The flow of water through acquifers, is governed by the Darcy's law
The term 'transmissibility' was introduced by Meinzer
The ratio of coefficient of transmissibility and coefficient of permeability, is equal to the depth of acquifer through which water flows.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

39.
With the usual meanings ofletters, the equation is used for determining the velocity of ground water flow in metres per day. It is known as
Meinzer's formula
Slichter's formula
Darcy's formula
Hazen's formula.
Answer: Option
Explanation:
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40.
If the viscosity of ground water is 1.00, the Slitcher's constant is 400, the effective size of soil particles in acquifer is 0.5 mm and hydraulic gradient is 1 in 80, the velocity of flow is
0.25 m/day
0.50 m/day
0.75 m/day
1.00 m/day
1.25 m/day.
Answer: Option
Explanation:
No answer description is available. Let's discuss.