Soil and Foundation Engineering, Question Paper of Civil Engineering 4th Semester, Download Question Paper 9

Roll No­­­­­­­­­_________

SOIL AND FOUNDATION ENGG.

4^th Exam /Civil/5109/May’09

                                                             

Duration 3 Hrs.

1.     Fill in the blanks

a.     The soil which remain at the place of disintegration of parent rock is called _____

b.     The bulk density of soil mass when fully saturated is called ________

c.      More liquid limit means more ________

d.     The coarse gravels have_________ degree of permeability

e.      Total stress = Effective stress + _______

State true of false :

f.       The upward movement of soil is called Swelling

g.     For fully saturated soil, void ratio e = w.G

h.     The property of holding the sol particles together is called cohesion.

i.       Undisturbed samples are obtained by Auger boring.

j.       In 75 micron I.S. sieve, the size of aperture is equal to 0.75 mm.

Choose the correct one:

k.     The pervious soils are /are not suitable for sub-grades of roads.

l.       Consolidation  is  show / quick process of reducing the volume of soil mass under the applied load,.

m.  The value of the vertical stress increases / decreases with the increase in depth.

n.     The soil sample in which the natural structure and properties remained preserved is called disturbed/ undisturbed sample.

o.     The pile constructed by making a hole in the ground and then filling it with concrete is called precast/ cast –in –situ pile.

Section –B

2.     Note: Attempt any ten parts:

a.     Differentiate between dry , partially saturated and fully saturated soils.

b.     Define specific gravity and degree of saturation

c.      Differentiate between laminar and Turbulent flow.

d.     State Coulomb’s law.

e.      Neutral stresses.

f.       Types of soil samples.

g.     Shear resistance of soil.

h.     Ultimate bearing capacity of soil.

i.       Importance of compact.

j.       Shallow foundation

k.      Uniform settlement.

l.       Plasticity Index.

Section –C

Note : Attempt any three questions.

3.     Define the terms void ration and porosity and derive relation between void ratio. Specific gravity, water content and degree of saturation.

4.     Explain briefly the field identification tests of soils.

5.     Describe any two of the following:

a.     Darcy’s law

b.     Significance of consolidation and settlement

c.      Auger Boring

6.     Discuss any two of the following:

a.     Importance of effective stress

b.     Direct Shear Test

c.      Factors affecting depth of shallow foundation