Soil and Foundation Engineering, Question Paper of Civil Engineering 4th Semester, Download Question Paper 18

Roll No­­­­­­­­­_________

SOIL AND FOUNDATION ENGG.

5^th Exam /Civil/5183/May’06

                                                             

Duration 3 Hrs.

Note : Attempt all questions

1.     Fill in the blanks

a.     The soil transported by wind is called _____

b.     The ratio of _____ to _______ is called void ratio.

c.      The smallest sieve size according to IS is _____

d.     Name the soil which is highly permeable _______

e.      Proctor needle method used to determine the_____

Choose the correct answer:

f.       The sol should be uniformly graded / well graded/skip graded/average graded.

g.     Dry density of a soil is always greater than the saturated density/ratio of wt-of –soil solids to the volume of solid/determined at 100 C/ none of above.

h.     Degree of consolidation depends upon the factor, thickness of clay layer/no. of drainage faces/co-efficient of compressibility / all above. 

i.       An angle between the horizontal and the max. slope that a soil assume in natural process is called angle of internal friction/ angle of reposed hydraulic gradient.

j.       Compressibility  of  soil depends upon L.L/P.L/ shrinkage limit.

State True or False.

k.     Vibrating rollers are useful for compacting gravel F/T

l.       Bearing capacity of soft rock is 10N/cm2 F/T

m.  Thin tube sampler is not used for obtaining undisturbed soil sample F/T.

n.     More L.L means more compressibility.

o.     Effective stress is also called inter granular stress F/T.

Section-B

2.     Attempt any ten questions.

a.     Comment on why clayey coils are not preferred for foundations.

b.     Define Darcy’s law and it validity.

c.      What are the effects of settlement of soils?

d.     Explain location, depth and spacing of exploratory holes.

e.      What is OMC and how it is found?

f.       Define allowable bearing pressure.

g.     Discuss creep in soils.

h.     What is the significance of studying soil engineering ?

i.       On what assumptions the unconfined compression test is based?

j.       How the particles on held together in case of cohesive soils?

k.     What is geological cycle?

l.       Discuss swelling of soils.

Section –C

3.       Attempt any three questions.

a.     Define and discuss representation and non-representation soil samples.

b.     Describe causes of failure of foundations.

c.      What factor govern the stability of earthen dams?

d.     What is the importance of effective stress in engineering field?