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APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
SECOND SEMESTER M.TECH DEGREE EXAMINATION, APRIL 2018
DEPARTMENT OF CIVIL ENGINEERING
ENVIRONMENTAL ENGINEERING
Course No:07 CE 6422 GROUND WATER CONTAMINATION AND POLLUTION
TRANSPORT
Time: 3 hours Max. Marks: 60
Answer all six questions. Part of each question is compulsory.
Answer either part or part of each question
Q.no. Module 1 Marks
1a Sketch and explain relation between soil texture and porosity with respect
to groundwater flow?.
4
Answer b or c
b Explain the use of piezometers and piezometer nests in groundwater
analysis?
5
c
Explain with neat sketch heterogeneity and anisotropy of hydraulic
conductivity?
5
Q.no. Module 2 Marks
2a Define flow lines and flow nets? Sketch and explain the flow line steady
state and transient groundwater flow beneath a dam?
4
A nswer b or c
b Explain the effect of compressibility and effective stress in groundwater
flow?
5
c Derive the expression for transient unsaturated groundwater flow starting
from the fundamental equations of groundwater flow?
5
Q.no. Module 3 Marks
3a With the help of a neat sketch, explain bounded aquifers? 4
Answer b or c
b What is meant by groundwater exploration in development? What are the
various sequential steps of it?
5
c
Explain the effect of stepped pumping rates and well recovery in the
5
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hydraulic head
Q.no. Module 4 Marks
4a Analyse the importance of dissolved gases present in ground water?
4
Answer b or c
b Explain the importance of carbon-14 and tritium in groundwater analysis? 5
c Explain the various field measurement techniques for the determination of
index parameters What is meant by groundwater exploration in
development? What are the various sequential steps of it?
5
Q.no. Module 5 Marks
5a Sketch and explain the chemical evolution paths for calcite and dolomite in
open and closed system dissolution conditions of groundwater flow?
5
Answer b or c
b Explain the important chemical evolution of groundwater in crystalline
rocks?
7
c What are the sources groundwater contamination? Discuss about them?. 7
Q.no. Module 6 Marks
6a What are the water quality standards for groundwater? Explain the
importance of its analysis?
5
Answer b or c
b State and explain the fundamental processes affect the transport of
contaminants in ground water??
7
c What is inverse modelling in ground water contamination? What is its
difference from conventional modelling? Explain USGS-MOC model for
ground water flow modelling?
7