1(a)
Explain Horton's qualitative representation of hydrologic cycle, with a neat sketch.
8 M
1(b)
Explain with a neat sketch, Simon's rain gauge.
6 M
1(c)
A precipitation station X was inoperative for some time during which a torm occurred. At three stations A,B and C surrounding station X, the total precipitation recorded during this strom are 75mm, 58mm, and 47 mm respectively. The normal annual precipitation amounts at X, A B and C are respectively 757 mm, 826mm, 618mm and 482 mm. Estimate the storm precipitation at X.
6 M
2(a)
Describe the method of determining infiltration capacity using a double ring infiltrometer.
6 M
2(b)
Enlist the factors affecting evapotranspiration.
6 M
2(c)
The total observed runoff volume during a 6hr-storm with a uniform intensity of of 1.50 cm/hr is 21.6×106m3. If the area of the basin is 350km2, find the average infiltration rate for the basin.
8 M
3(a)
Explain a typical single peaked hydrograph compnents with a neat sketch.
6 M
3(b)
What are the assumptions made in unit hydrograph theory?
6 M
3(c)
Find the ordinates of a flood hydrograph resulting from a storm with rainfalls of 2.50, 6.85 and 3.75 cm each during successive 3 hours. The ordinates of a 3 hour UHG are given below.
Assume an initial loss of 5mm, infiltration index, &phi=2.5mm/hr, Base flow = 12 curnec.
Time (hours) | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 24 | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 24 |
UHG ordinates(cumec) | 0 | 115 | 370 | 510 | 395 | 315 | 252 | 231 | 172 | 127 | 96 | 64 | 43 | 25 | 12 | 0 |
8 M
4(a)
What is flood? What are the factors that affect flood?
6 M
4(b)
List out various methods for estimation of design flood, Explain rational method of flood estimation.
6 M
4(c)
Explain Muskingum's routing method for hydrologic channel routing.
8 M
5(a)
What are the advantages and disadvantages of irrigation?
8 M
5(b)
Enlist the various factors affecting the choice of method irrigation.
4 M
5(c)
List out the advantages of sprinker irrigation and drip irrigation
8 M
6(a)
Write a note on a soil classification.
6 M
6(b)
What are the different techniques to be adopted to maintain soil fertility?
6 M
6(c)
Write a note on India soils.
8 M
7(a)
What are the different methods adopted to improve duty of water?
6 M
7(b)
Write note on assessment of irrigation water.
6 M
7(c)
After how many days will you supply water to soil ( clay loam in order to ensure efficient irrigation of the given crop, if
i) Field capacity of soil = 27%
ii) Permanent wilting point = 14%
iii) Density of soil = 15 kN/m3
iv) Effective depth of root zone = 75 mm
v) Daily consumptive use of water for a given crop = 11mm.
i) Field capacity of soil = 27%
ii) Permanent wilting point = 14%
iii) Density of soil = 15 kN/m3
iv) Effective depth of root zone = 75 mm
v) Daily consumptive use of water for a given crop = 11mm.
8 M
8(a)
Write a note on canal classification.
6 M
8(b)
What are the consideration made during alignment of canals?
6 M
8(c)
Design a trapezoidal canal by Kennedy's theory with side slope 1:1 in alluvial soil to carry a discharge of 30 m3/sec in bed slope of 1 in 5000. Rugosity coefficient of Kutter is 0.0225, CVR=1.
8 M
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