Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU) B-Tech 7th Semester (Seventh Semester) 2018-2019 NCE 035 Engineering Hydrology Question Paper
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Mermm RonNo.I I Li I I I I I I I
B. TECH.
(SEM VII) THEORY EXAMINATION 2018-19
ENGINEERING HYDROLOGY
Time: 3 Hours Total Marks: 100
Note: 1. Attempt all Sections lf require any missing data; then choose suitably.
SECTION A
l. Attempt all questions in brief. 2 x 10 = 20
Discuss Depression storage.
What are methods to assess the recharge of ground water in an area?
Discuss ?ood frequency analysis
Write short note on Global Water Budget.
De?ne synthetic unit hydrograph.
What is a ?Return Period??
De?ne Probable Maximum Precipitation.
What Is transmissibility?
Why is base ?ow separated from total runoff}
De?ne Recurrence interval of ?ood
+13%:an 9-,? 9'5?
SE (: mom; I
2. Attempt any three of the following; ' 10 x 3=? 30
a. State the Horton? 5 equation for in?ltration capacitV curve and sketch with thu?
salient components o?he curve And explain brie?y about the cb- -index and w
index.
b. The tollowing ?(?7 the ordinates for a ?ood hydrograph resulting lrom an
isolated stoma)? 6 hours dwation ? . ~.
TimeO") ? 0 12 24 36 48 60'} 72 84 96
Ordinatesof 5 15 40 80 60': 250 25 15 5
?ood ?I , ?
Hydrograph
Determine the ordinates 01 1 cm- 6 hour unit hy drograph if the catchment area
is 450 Km
0. l ist the various direct methods of measurement 0t consumptive use of water.
d. How will you derive the synthetic unit hV drograph from a number of unit
hydrograph" Illustrate the. mediod with suitable example In a tabular form
6. Derive an eXpression for discharge from a well in uncon?ned aquifer. The well
fullV penetrates it
SECTION C
3. Attempt any one part of the following: 10 x l = 10
(a) Explain the concept of S-hydrograph and under what circumstances you Would
adoption of this hydrograph. Give a clean associated sketch.
(b) What do you mean by probable maximum precipitation (PMP) over the basin?
Explain how PMP is estimated.
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4.
UI
Attempt any one part of the following: 10 x l = 10
(3?) De?ne Unit Hydrograph. Explain its assumption and uses. A 12-h1. UH of a
catchment is triangular in the shape with a base width of 144 hr and peak
discharge 0123 m3/s. C alculate the area of the catchment.
(b) Brie?y distinguish between :
('1) Actual and Potential evapotranspiration
(ii) Field Capacity and permanent wilting point
(iii) Depression storage and interception
(iv) ln?ltxation capac1ty and in?ltration rate.
Attempt any one part of the following: 10 x l = 10
(a) The ordinates of a 4 hr unit hydrograph of a basin of area 300 111112 measured at
1 hr intervals are 6, 36, 66.91, 106, 93.79, 68. 58.49. 41, 34, 27, 23, 17, 13,9, 6.
3 and 1 5 m3/s respectively Determine the ordinates ofa 3 hr Unit hydrograph
for the basin.
(b) Unit hydrograph ordinates of 4 hour are gwet} be1ow. Find out ordinates 0f 8
hour unit hvdrograph ??
Time(hr) 0 4 8 12 . ,:16 20 24 28 32 L
U.H.0. 0 17 28 42.3.; ??72 60 47 32 15
19}; 1*?: 10
(21) Describe the various slrita?nal methods adopted for control of ??ods Also
discuss the problem of hoods and their control with spcc1al, 1?{e1?ence to the
Indian scene. _, ,
(b) The peakmlues 9f the ?oods from the vear 1941 to 1955 me 4000,5400 7000
4600 3800;, 5890 .4900 7800 6400, 5300 4700 35200, 10000 and 5200
cumecs Est11nate the magmtude of ?ood having {reguency equal to (1) 100
years. (11) 300 years. The 9? = 0.5128 and 3.61.0206.?
Attempt any one part of the folloumg?
Attempt any one part of the following: :53 10 x l = 10
(a) Write short notes on following:
(1) Speci?c capacity, of we11
(?11) Well loss ?
(111) Sphencal ?ow 1n well
(b) A 25 cm diameter we1l penetrates 20m below water table After 1 day pumping
at a rate of 4600 litre/mmutes. The water level 1n attest well at 110m is lowered
by 0.7m and tcstvw? at 40 m. away drawdown 15 125 n1. What 15 the
transmissibility of dizyuifer?
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This post was last modified on 29 January 2020