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Ees414:Groundwater Exploration Question Paper

Ees414:Groundwater Exploration

Course:Groundwater Exploration

Institution: University Of Eldoret question papers

Exam Year:2014

Answer all the Questions in section A and any four questions in section B.
SECTION A
1.What is groundwater exploration?3MKS
2.What is effective porosity?3MKS
3.List any three types of aquifers3MKS
4.Give the general formula of Darcy''s law3MKS
5.List any three characteristics of rocks that make them suitable aquifers 3MKS
6.State the difference between aquifer and aquitard 3MKS
7.Define hydraulic conductivity3MKS
8.List any three methods of groundwater exploration 3MKS
9.What is a flow net?3MKS
10.Define and give another name for piezometric level 3MKS
SECTION B.
11.Explain in details the differences between confined and unconfined aquifers 10MKS
12.Describe the steps involved in establishing the presence of reliable aquifer in an area 10MKS
13.Describe flow net and explain its importance in analysis of groundwater flow 10MKS
14.In Budalangi area of Lake Victoria basin is an unconfined aquifer covering 150km2.A drought is experienced in one year during which 100million m3 of water is pumped for use,resulting in 6m drop of water table.
A.Estimate the specific yield of the aquifer 6MKS
b.If the specific retention is 12%,what is the porosity of the material that forms the aquifer?4MKS
15.List and briefly explain each of the four principles in electromagnetic exploration 10MKS
16.An artesian aquifer 40m thick has a porosity of 20% and bulk modulus of compression 1500kg/cm.Bulk modulus of elasticity of water =2.14x10^4kg/cm2 a.Estimate the storage coefficient of the aquifer 6MKS
b.What fraction of the storage is attributable to the expansibility of water?4MKS

Ees414:Groundwater Exploration Question Paper

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