Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Winter 5th Sem 2150602 Hydrology And Water Resources Engineering Previous Question Paper
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER?V (NEW) EXAMINATION ? WINTER 2020
Subject Code:2150602 Date:01/02/2021
Subject Name:Hydrology & Water Resources Engineering
Time:10:30 AM TO 12:30 PM Total Marks: 56
Instructions:
1. Attempt any FOUR questions out of EIGHT questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
MARKS
Q.1 (a) Define : Hydrology, Flood routing, Penstocks
03
(b) List out the various methods used to calculate the average depth of rainfall
04
over a catchment and explain any one with neat sketch.
(c) What is hydrograph? Draw a single peaked hydrograph and explain its
07
components. What are the factors affecting the shape of the hydrograph.
Q.2 (a) Describe the various types of dams based on the function served.
03
(b) Define the term `Drought'. Briefly explain the types of drought.
04
(c) The ordinates of 3 hrs Unit hydrograph are given below :
07
Time in Hrs.
0
3
6
9 12 15 16 21 24 27 30
Ordinates
0 10 25 20 16 12 9
7
5
3
0
(cumecs)
Find the ordinates of a 6 hrs UH for the same basin analytically. Also,
sketch 6 hr ? Unit hydrograph. What is the peak value of discharge in
6 hr ? Unit hydrograph?
Q.3
(a) Briefly explain the forms of precipitation.
03
(b) The average rainfall over a basin of area 50 ha during a storm was as
04
follows :
Time (hr)
0
1
2
3
4
5
6
7
Rainfall (mm)
0
6
11 34 28 12
6
0
If the volume of runoff from this storm was measured as 25000 m3,
determine ? index for the storm.
(c) Explain with neat sketch storage zones of reservoir.
07
Q.4 (a) Define : Unit Hydrograph, Darcy's law, Flood
03
(b) What is a spillway? List out the types of spillway and explain any one
04
briefly.
(c) Describe the process of the Hydrological cycle with a neat sketch.
07
Q.5 (a) Explain causes of flood.
03
(b) Write a short note: Methods for Separation of Base flow.
04
(c) Draw a neat sketch of `Hydroelectric power plant'. Explain the each
07
component briefly.
1
Q.6 (a) Define: Time of concentration, Groundwater, Runoff.
03
(b) Explain the pumping test to estimate the safe yield from an open well.
04
(c) List of the structural and non ? structural approaches of controlling
07
damage due to floods. Explain structural flood control measures.
Q.7 (a) Define: Evapo- transpiration, Precipitation, Infiltration
03
(b) Write down the different methods available for Flood estimation and
04
explain any two methods.
(c) Explain Roof top rain water harvesting with neat sketch.
07
Q.8 (a) Enlist the different types of aquifers. Describe any one aquifer with
03
neat sketch.
(b) What is the difference between hyetograph and hydrograph?
04
(c) Define the term `Evaporation'. Explain the factors affecting evaporation.
07
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This post was last modified on 04 March 2021