Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 5th Sem Old 150602 Hydrology And Water Resources Engineering Previous Question Paper
1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?V (OLD) EXAMINATION ? WINTER 2018
Subject Code:150602 Date: 07/12/2018
Subject Name: Hydrology & Water Resources Engineering
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) What is unit hydrograph? How it is constructed? Write assumptions and limitations
of the unit hydrograph.
07
(b) Enumerate various types of rain gauges and explain weighing bucket type rain
gauge in detail.
07
Q.2 (a) Explain the principal factors affecting the run-off in brief. 07
(b) How would you estimate the design flood for a flood control project?
Explain in briefly.
07
OR
(b) What are the various causes of floods? 07
Q.3 (a) Describe the methods of calculating average depth of rainfall from catchments. 07
(b) Describe the various types of hydel plants. 07
OR
Q.3 (a) Explain ?- index and W-index with the procedure to determine the same. 07
(b) Explain with neat sketch storage zones of a reservoir. 07
Q.4 (a) What are the different types of aquifers? Explain each in brief. 07
(b) Discuss various types of drought. Explain the causes of drought. 07
OR
Q.4 (a) Define flood routing and explain graphical method of flood routing. 07
(b) Derive an expression for discharge from a well which is fully penetrated in
confined aquifer.
07
Q.5 (a) The ordinates of 4 hour unit hydrograph are given in the table. Compute the
ordinate of 8 hour unit hydrograph.
Time in
hour
0 4 8 12 16 20 24 28 32 36 40 44
Unit
hydrograph
in cumec
0 20 50 150 120 90 70 50 30 20 10 0
07
(b) Define water resources project. Explain environmental aspects in water
resources planning.
07
OR
Q.5 (a) Discuss factors consider while selecting suitable site for a reservoir. 07
(b) Water was pumped out from a well in a confined aquifer 10m thick, having a
hydraulic conductivity of 1.5m/day. The drawdown observed in the two
adjoining wells at 10m and 50m from the pumping well was 3.2m and 0.08m,
respectively. Find the constant rate of pumping.
07
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This post was last modified on 20 February 2020