Engineering Geology - May 2015

Civil Engineering (Semester 3)

TOTAL MARKS: 80
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Assume data if required.
(4) Figures to the right indicate full marks.

Write the identifying properties and economic use of the following minerals.

1 (i) (a) Calcite.(1 marks) 1 (i) (b) Graphite.(1 marks) 1 (i) (c) Kyanite.(1 marks) 1 (i) (d) Gypsum.(1 marks) 1 (i) (e) Asbestos.(1 marks)

Define following terms

1 (ii) (a) Delta.(1 marks) 1 (ii) (b) Seismograph.(1 marks) 1 (ii) (c) Water Table.(1 marks) 1 (ii) (d) Mantle(1 marks) 1 (ii) (e) Sill.(1 marks) 1 (ii) (f) Ox-bow lake.(1 marks) 1 (ii) (g) Petrology.(1 marks) 1 (ii) (h) Stratification(1 marks) 1 (ii) (i) Thermal metamorphism.(1 marks) 1 (ii) (j) Fault.(1 marks)

Name the following.

1 (iii) (a) A Landform created by wind.(1 marks) 1 (iii) (b) A discordant igoeous body.(1 marks) 1 (iii) (c) A part of Dam which is used to release excess water from the reservoir.(1 marks) 1 (iii) (d) The discontinaity which separates crust from mantle.(1 marks) 1 (iii) (e) Parent rock for slate.(1 marks) 2 (i) Give a brief account of various types of Folds in the rocks.(10 marks) 2 (ii) What is the Order of Superposition and what is its significance?(6 marks) 2 (iii) Draw a neat labeled diagram showing horst and graben structure.(4 marks) 3 (i) Discuss the favourable and unfavourable geological structure for dam construction.(10 marks) 3 (ii) Describe seismic method of geological exploration.(5 marks) 3 (iii) What are the various types of Landslides and their preventive measures?(5 marks) 4 (i) Write a note on formation of Igneous rocks and describe various texture of these rocks.(10 marks) 4 (ii) What are the zones of groundwater? Describe different types of aquifers.(10 marks) 5 (i) Describe the various landforms created by Glaciers.(10 marks) 5 (ii) Write a note on economic importance of Deccan Traps.(5 marks) 5 (iii) What is RQD? Explain its significance.(5 marks)

Differentiate between any 5 of the following.

6 (a) Creater and Caldera.(4 marks) 6 (b) Fracture and Cleavage.(4 marks) 6 (c) Angular unconformity and Disconformity.(4 marks) 6 (d) Pot holes and cirques.(4 marks) 6 (e) Mechanical and Chemical weathering.(4 marks) 6 (f) Dip and strike.(4 marks) 6 (g) Stalactite and Stalagmite.(4 marks)