Jawaharlal Nehru Technological University Anantapur 2011-2nd Sem B.Tech Code :R5420102 R5 IV (R05) Supplementary s, GROUND WATER DEVELOPMENT & MANAGEMENT (Civil Engineering) - Question Pape

1. (a) discuss the vertical distribution of ground water in detail.
(b) describe the terms porosity, specific yield and specific retention. Also provide the relation
among them.

2. (a) discuss Darcy's legal regulations and its limitations.
(b) Derive the basic differential formula governing ground water flow in 3 dimensions.

3. (a) Derive the formula for discharge for a well penetrating a confined aquifer for steady radial
flow.
(b) A 25cm diameter well is pumped at a uniform rate of 3000 lpm. The drawdown observed
at 1m and 100m distance from the centre of the well are 8m and 0.4m respectively. obtain
the hydraulic conductivity of water bearing strata assuming the thickness of the saturated
part of the aquifer as 25m.

4. (a) define the Thesis method of determining the aquifer parameters using the pumping test
data. Compare the identical with other methods.
(b) discuss the unsteady radial flow in a leaky aquifer.

5. (a) What is meant by geophysical exploration of ground water.
(b) discuss aerial photogrammentry applications in subsurface investigation.

6. (a) discuss the concept and necessity of artificial recharge of ground water.
(b) discuss stream-channel method.

7. (a) discuss the control of sea water intrusion.
(b) discuss Ghyben-Herzberg relation.

8. (a) What is conjunctive use? elaborate the advantages? Also provide its role in water resource
management.
(b) describe and discuss ground water basin management ideas and aspects.

Earning:   Approval pending.