Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 6th Sem New 2161307 Ground Water Contamination Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? VI (New) EXAMINATION ? WINTER 2019
Subject Code: 2161307 Date: 12/12/2019
Subject Name: Ground Water Contamination
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Marks
Q.1 (a) Define the following terms. (1) Aquiclude (2) Aquifuge (3)
Perched aquifer
03
(b) Explain in detail how to monitor groundwater quality. 04
(c) What is ground water? Discuss vertical distribution of ground
water with neat Sketch.
07
Q.2 (a) Write down the hydrological properties of water bearing strata. 03
(b) Explain in detail different sources responsible for ground water
pollution with causes.
04
(c) Explain the recuperation test to estimate the safe yield of an open
well.
07
OR
(c) Explain in detail steady & unsteady flow solution for fully
penetration wells.
07
Q.3 (a) Write the assumptions made in dupuit?s theory. 03
(b) Explain the different methods of waste water recharge for reuse. 04
(c) Design a tube well for the following data.
1) yield required = 0.081cumsec
2) Thickness of confined aquifer = 30 m
3) Radius of circle influenced = 300 m
4) Permeability coefficient = 60 m/day
5) Draw down = 5.1 m
07
OR
Q.3 (a) Explain induced recharge method with their flow pattern. 03
(b) A pumping test was conducted for an open well of diameter 3.6m.
the water was pumped out at a constant rate of 300lit/min. find
specific yield. Take h=3.5 m
04
(c) Water is pumped out at the rate of 2500 lit/min from a well of 0.3
m diameter, penetrating fully in an aquifer of 30 m thickness. The
draw downs observed in two adjoining wells at 20 m and 120 m
from the pumping well are 8 m and 0.6 m respectively. Determine
the average hydraulic conductivity.
07
Q.4 (a) What is cone of depression? 03
(b) Define following terms: (1) Porosity (2) Permeability (3)
Transmissibility (4) Specific yield
04
(c) Derive the differential equation for Unconfined aquifer. 07
OR
Q.4 (a) Write a short note on advective and dispersive transport mechanism 03
FirstRanker.com - FirstRanker's Choice
1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? VI (New) EXAMINATION ? WINTER 2019
Subject Code: 2161307 Date: 12/12/2019
Subject Name: Ground Water Contamination
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Marks
Q.1 (a) Define the following terms. (1) Aquiclude (2) Aquifuge (3)
Perched aquifer
03
(b) Explain in detail how to monitor groundwater quality. 04
(c) What is ground water? Discuss vertical distribution of ground
water with neat Sketch.
07
Q.2 (a) Write down the hydrological properties of water bearing strata. 03
(b) Explain in detail different sources responsible for ground water
pollution with causes.
04
(c) Explain the recuperation test to estimate the safe yield of an open
well.
07
OR
(c) Explain in detail steady & unsteady flow solution for fully
penetration wells.
07
Q.3 (a) Write the assumptions made in dupuit?s theory. 03
(b) Explain the different methods of waste water recharge for reuse. 04
(c) Design a tube well for the following data.
1) yield required = 0.081cumsec
2) Thickness of confined aquifer = 30 m
3) Radius of circle influenced = 300 m
4) Permeability coefficient = 60 m/day
5) Draw down = 5.1 m
07
OR
Q.3 (a) Explain induced recharge method with their flow pattern. 03
(b) A pumping test was conducted for an open well of diameter 3.6m.
the water was pumped out at a constant rate of 300lit/min. find
specific yield. Take h=3.5 m
04
(c) Water is pumped out at the rate of 2500 lit/min from a well of 0.3
m diameter, penetrating fully in an aquifer of 30 m thickness. The
draw downs observed in two adjoining wells at 20 m and 120 m
from the pumping well are 8 m and 0.6 m respectively. Determine
the average hydraulic conductivity.
07
Q.4 (a) What is cone of depression? 03
(b) Define following terms: (1) Porosity (2) Permeability (3)
Transmissibility (4) Specific yield
04
(c) Derive the differential equation for Unconfined aquifer. 07
OR
Q.4 (a) Write a short note on advective and dispersive transport mechanism 03
2
(b) Explain in detail method of images 04
(c) What is artificial recharge? Explain different artificial recharge
methods of ground water.
07
Q.5 (a) Give the difference between fully and partial penetrating wells. 03
(b) Explain site selection criteria for artificial recharge. 04
(c) Write down the Indian & international standards for ground water
quality.
07
OR
Q.5 (a) Explain Artificial recharge for ?energy purpose?. 03
(b) Explain the Darcy?s law. What are its limitations? Discuss its
validity.
04
(c) Explain in detail interference among wells. 07
FirstRanker.com - FirstRanker's Choice
This post was last modified on 20 February 2020