Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 5th Sem New 2150602 Hydrology And Water Resources Engineering Previous Question Paper
1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?V (NEW) EXAMINATION ? WINTER 2018
Subject Code:2150602 Date:11/12/2018
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) Define: Evapo- transpiration, Precipitation, Infiltration 03
(b) What is a spillway? Explain functions of spillway. 04
(c) Discuss the various methods of determining the average depth of rainfall
over a catchment.
07
Q.2 (a) Explain the various forms of precipitation. 03
(b) Describe the various factors affecting run-off from a basin area. 04
(c) A rain gauge recorded the following accumulated rainfall during the
storm. Draw the mass rainfall curve and the hyetograph.
Time
(AM)
10.00 10.15 10.30 10.45 11.00 11.15 11.30 11.45 12.00
Accu.
Rainfall
(mm)
0.0 8.5 16.0 27 37 48 62 80 90
07
OR
(c) A storm with a 15.0 cm precipitation produced a direct runoff of 8.7 cm.
The time distribution of the storm is as follow. Estimate the w-index and
?-index.
Time
from
start(hr)
1 2 3 4 5 6 7 8
Increment
al rainfall
(cm)
0.6 1.35 2.25 3.45 2.7 2.4 1.5 0.75
07
Q.3 (a) Give the difference between Specific Yield and Specific Retention for
ground water.
03
(b) Describe how to obtain the unit hydrograph from a flood hydrograph
resulting from a storm of certain duration.
04
(c) .Design a tube well for the following data:
Yield required=0.081 cumec; Thickness of confined aquifer=30m;
Radius of circle of influence=300m; Permeability coefficient=50m/day;
Drawdown=5.1m.
07
OR
Q.3 (a) Enlist the different types of aquifers. Explain any one aquifer with neat
sketch.
03
(b) State the Darcy?s Law. How to measure the co efficient of permeability
by use of Darcy?s Law.
04
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1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?V (NEW) EXAMINATION ? WINTER 2018
Subject Code:2150602 Date:11/12/2018
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) Define: Evapo- transpiration, Precipitation, Infiltration 03
(b) What is a spillway? Explain functions of spillway. 04
(c) Discuss the various methods of determining the average depth of rainfall
over a catchment.
07
Q.2 (a) Explain the various forms of precipitation. 03
(b) Describe the various factors affecting run-off from a basin area. 04
(c) A rain gauge recorded the following accumulated rainfall during the
storm. Draw the mass rainfall curve and the hyetograph.
Time
(AM)
10.00 10.15 10.30 10.45 11.00 11.15 11.30 11.45 12.00
Accu.
Rainfall
(mm)
0.0 8.5 16.0 27 37 48 62 80 90
07
OR
(c) A storm with a 15.0 cm precipitation produced a direct runoff of 8.7 cm.
The time distribution of the storm is as follow. Estimate the w-index and
?-index.
Time
from
start(hr)
1 2 3 4 5 6 7 8
Increment
al rainfall
(cm)
0.6 1.35 2.25 3.45 2.7 2.4 1.5 0.75
07
Q.3 (a) Give the difference between Specific Yield and Specific Retention for
ground water.
03
(b) Describe how to obtain the unit hydrograph from a flood hydrograph
resulting from a storm of certain duration.
04
(c) .Design a tube well for the following data:
Yield required=0.081 cumec; Thickness of confined aquifer=30m;
Radius of circle of influence=300m; Permeability coefficient=50m/day;
Drawdown=5.1m.
07
OR
Q.3 (a) Enlist the different types of aquifers. Explain any one aquifer with neat
sketch.
03
(b) State the Darcy?s Law. How to measure the co efficient of permeability
by use of Darcy?s Law.
04
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2
(c) Ordinates of 8 hours UH for a drainage basin are given below. Obtain a
24 hr UH by analytical method.
Time (Hr) Ordinates of
8hr UH
Time (Hr) Ordinates of
8hr UH
0 0.0 40 79.0
4 5.5 44 42.0
8 13.5 48 31.0
12 26.5 52 22.0
16 45.0 56 12.0
20 82.0 60 8.5
24 162.0 64 5.5
28 240.0 68 2.5
32 231.0 72 1.0
36 165.0 76 0
07
Q.4 (a) Differentiate between Low head power plants and High head power
plants.
03
(b) Write short note on Gravity Dam and Earth Dam. 04
(c) Explain with a neat sketch the various zones of storage in a reservoir. 07
OR
Q.4 (a) Discuss the various factors affecting for the site selection of a dam. 03
(b) What are the procedures for determining the useful life of reservoir? 04
(c) Explain briefly all components of a hydroelectric power plant with neat
sketch.
07
Q.5 (a) Write the short note on Levees and Flood walls. 03
(b) Enlist the various types of Drought. Explain major causes of drought. 04
(c) Explain theoretical probability distribution Gumbel?s method. 07
OR
Q.5 (a) Describe in brief Flood damage analysis. 03
(b) What is mean by Water harvesting? Explain any one method of water
harvesting.
04
(c) Describe the Flood routing with neat sketch. 07
*************
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This post was last modified on 20 February 2020