Third Semester B.E. Degree Examination, DeoQS/Jan.O9A

--l:^J E--:-^^-:-- \ )/"'Applied Engineering Geology \--"r'-

Time: 3 hrs. Max. Marks:100Note: Answer any FIVE full questions, selecting

at leust TWO questions from each parl.PART

- A

I a. Briefly describe the various branches of geology. (05 Mark$b. Discuss the application of geology in the field of Civil Engineering. (05 Marks)c. Describe the internal structure of the earth based on the seismological evidences. (06 Marks)d. Mention the various discontinuities occuning in the Earth's interior. (04 Marks)a. What is a mineral? Describe briefly the habits possessed by the minerals. (06 Marks)b. Describe any two ol the follor.ving physical properlies of a mineral. t08 Marks)

(i) Colour and streak (ii) Cleavages (iii) Hardness.c. Distingursh betweep any trvo of the follovring based on physical & chemical properlies.

(i) Quartz and calcite (ii) Augite afrd l{ornbilende (iii) I'yrite and chalcopyrite. (06 Marks)3 a. Whai are sedimentary rocks? How are they formed and give their classification. (08 Mark)

b. What is metamorphism? Mention the types of metamorphism. (05 Markgc. Descnbe vescicular and amygdaloidal stmcture. (03 Markgd. Distingursh betrveen any one of the foilowing based on their composition and mode of

fot'tnation: (i) Basalt and I-ime stone (ii) Schist and granite. (04 Marks)4 a. Write short note on exfoliation. (03 Marks)

b. What are ox-bolv lakes? IIow are they formed? t04 Marks)c. Describe briefly the tectonic causes of earlh quake based on the concept of plate tectonics.

(08 Marks)d. What is soil and soil profile? Describe the methods of soil conservation. (05Marks)

PART _ I}5 a. Distinguish between a joint and a fauit in rocks. Explain [{orst and Graben. (07 Marks)

b. Write shorl note on Dip and strike. (05 Marks)c. What are folds? I-lorv are they caused? Describe recumbent and plunging folds. (08 Markg

6 a. What is a dam? Discuss briefly the geological considerations in selecting a suitable site fbrthe construction of a dam. (08 Marks)

b. What is sofi rock tunneling? Describe the safety measures to be taken in soft rock tunneling.(06 Mark9

c. What is grouting? Describe the types of grouting. (03 Marks)d. Describe Hydrophilic and hydrophobic aggregates. (03 Marks)

7 a. What is an aquifer? Describe the types of aquifers and add a note on itsvarious civil engineering projects.

b. Describe how ground water is prospected by electrical resistivity method.c. Comment on over exploitation of ground water? Suggest suitable methods

ground water.d. l)efine perched water table and water table.

implication on(08 Mark$

, (05 Marks)of recharging of

(04 Marks)(03 Marks)