Soil and Foundation Engineering, Question Paper of Civil Engineering 4th Semester, Download Question Paper 3

Roll No­­­­­­­­­_________

SOIL AND FOUNDATION ENGG.

4^th Exam /Civil/5109/May’06

                                                             

Duration 3 Hrs.

1.     Fill in the blanks

a.     The clay is a _______ grained soil

b.     Depending upon the coefficient of permeability , soil is designated as__ or _______.

c.      The slow lateral movement of the structure as a whole due to swelling is called _____

d.     The soil having soil fraction less than 2 micron is called _______

e.      Darcy equation is valid for _______ flow

Choose the correct one

f.       The cross section of soil layers through the sub-soil is known as soil profile (vertical , horizontal )

g.     The ratio of volume  of void to the total volume of soil is called _____(void ratio ,porosity)

h.     Effective stress is _______ than total stress(more, less)

i.       The upward movement of soil due to pore water pressure is called _______(swelling , creep )

j.       Pore pressure ______ equally on all sides of the soil particles (acts, does not act)

State true of false

i.       When the void ratio is reduced, the density also decreases.

j.       The co-efficient of permeability is expressed as cm/second.

k.     Liquid limit test is performed only for coarse-grained soil.

l.       The moisture content corresponding to the maximum dry density is called optimum moisture content.

m.  In direct shear test, plane of shear is predetermined

Section –B

Note : Attempt any ten questions

1.     Compare five and coarse grained soil with special reference to engineering properties

2.     Why particle size distribution curue is drawn on semi-logarithmic graph sheet

3.     Differentiate between  total and neutral stresses in soil./

4.     What equipment will you use for competing clayey soil?

5.     Differentiate between angle of internal friction and angle of repose

6.     Explain critical void ratio.

7.     Give the utility of proctor’s needle test.

8.     Discuss the difference between compaction and consolidation

9.     Explain CREEP in soil.

10.                        Give significance of degree of consolidation

11.                        Disuses effect of effective stress on strength soil. 

Section –C

Note: Attempt any three questions

2.     Write the short note on

a.     Disturbed samples

b.     Undisturbed samples

3.     Discuss the factors, which affect the bearing capacity of soil.

4.     Write the short note on

a.     Well foundation

b.     Pile foundation

5.      

a.     Describe briefly the planning of sub surface investigation o constructing  a building.

b.     A cube of dried clay having each side 4 cm, weight 100 gms. The same cube of soil weighs void ratio and specific gravity of solids.