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Engineering Geology - Jun 19
Civil Engineering (Semester 3)
Total marks: 80
Total time: 3 Hours
INSTRUCTIONS
(1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Draw neat diagrams wherever necessary.
i)Two minerals which possess good cleavage
ii)Two non silicate minerals
iii)Two minerals with high specific gravity
iv)A mineral with cherry red streak and ore of iron
v)Name the minerals which occur in fibrous form and bladed form
i)Solifluction
ii)Engineering Geology
iii)Volcanic Bomb
iv)Mesa
v)Aguiclude
i)T Crater
ii)Gravity Dam
iii)Phacolith
iv)Conglomerate
v)Box fold
i)Movement of tectonic plates
ii)High seismicity in the northern part of India
iii)Clay is not a good aquifer despite having high porosity
iv)Development of columnar joints in basalt
v)Development of caves (karst topography and sink hole)in limestone
Sample No | Length of the core in cms. | Nature of the lower end of the core simple | Sample No. | Length of the core in cms. | Nature of the lower end of the core sample |
---|---|---|---|---|---|
1 | 12 | N | 11 | 15 | N |
2 | 7 | N | 12 | 16 | M |
3 | 11 | N | 13 | 7 | N |
4 | 10 | N | 14 | 11 | N |
5 | 6 | M | 15 | 9 | M |
6 | 3 | N | 16 | 5 | N |
7 | 13 | N | 17 | 9 | N |
8 | 12 | N | 18 | 12 | N |
9 | 6 | M | 19 | 6 | N |
10 | 17 | N | 20 | 9 | N |
i)Tunnel axis parallel to dip and tunnel axis parallel to strike
ii)Angular unconformity and Disconformity
iii)Flowing well and non flowing well
iv)Mechanical weathering and chemical weathering
v)Overturned and recumbent fold
vi)Central eruption and fissure eruption
vii)Primary and secondary structures in rock
viii)Electrical resistivity and seismic method of geophysical exploration