Anna University Chennai 2003 B.E Civil Engineering ./B.Tech , IL/ . - Question Paper

B.E./B.Tech. DEGREE EXAMINATION, APRIL/MAY 2003.
2nd Semester

Civil Engineering

AG 151 — ENGINEERING GEOLOGY

Time : 3 hours Maximum : 100 marks

ans ALL ques..

PART A — (10 ? two = 20 marks)

1. Define Sea floor spreading.

2. Distinguish ranging from confined aquifer and unconfined aquifer.

3. Write the symmetry elements of Gypsum.

4. Differentiate ranging from syngenetic ore deposit and epigenetic ore deposit with example.

5. The metamorphic rock quartzite is formed from —————— of sedimentary rock by —————— metamorphism.

6. Match the subsequent :
(a) Porphyritic (i) Foliated structure
(b) Ripple marks (ii) Texture of Igneous rock
(c) Schist (iii) Monomineralic rock
(d) Pyroxenite (iv) Sedimentary structure.

7. What are the kinds of Seismic methods and their uses?

8. Distinguish ranging from open fold and closed fold.

9. What are the photo–recognition elements in photographic remote sensing?

10. Write a brief note on Littoral barriers.

PART B — (5 ? 16 = 80 marks)

11. How do the rivers reason erosion, transporation and deposition? provide the erosional and depositional land forms made by rivers. Add a note on stream and drainage trends. (2 + one + five + three + five = 16)

12. (a) (i) Define Symmetry elements and holohedral forms of a crystal.
(3 + two = 5)
(ii) Describe the axial characters, symmetry elements holohedral forms
and kind mineral of normal class of orthorhombic system.
(1 + one + seven + one = 11)

Or

(b) Describe the subsequent :
(i) Felspar family of minerals. (8)
(ii) Cavity filling deposits. (8)
13. (a) (i) How will you distinguish the 3 types of rocks? (2)
(ii) Describe with neat sketches the chief intrusive forms of Igneous
rocks. (2 + five + seven = 14)

Or

(b) Describe the structure, texture, mineral composition, engg. properties, occurrences and uses of the subsequent rock kinds :
(i) Gneiss (ii) Conglomerate
(iii) Pegmatite (iv) Basalt. (4 ? four = 16)

14. (a) (i) How will you distinguish the joint from fault? (2)
(ii) Describe with neat sketches the terminology and different kinds of
faults. Add a note on their engineering importances. (4 + eight + two = 14)

Or

(b) What are the kinds of electrical survey methods? define briefly the methods of geophysical exploration for location of sulphide ore bodies.
(1 + five + 10 = 16)

15. (a) (i) Give a brief note on Interpretation of satellite imagery data. (5)
(ii) Describe briefly the various kinds of aerial–photography and its
characteristics. (11)

Or

(b) What is a tunnel? define the different geological issues met during the construction of tunnels both in the hard rocks and in the soft grounds. (1 + two + seven + three + three = 16)

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Earning:   Approval pending.