Soil and Foundation Engineering, Question Paper of Civil Engineering 4th Semester, Download Question Paper 15

Roll No­­­­­­­­­_________

SOIL AND FOUNDATION ENGG.

5^th Exam /Civil/5183/Dec’08

                                                             

Duration 3 Hrs.

Note : Attempt all questions

1.     Fill in the blanks

a.     Soils are formed by weathering  of ______

b.     Peat is an example of ________ soil

c.      For fully saturated soils, value of ‘S’ is ______

d.     The ratio of wt or water to wt of solids in soil is _______

e.      Consistency limits are also called ______ limits

Choose the correct answer.

f.       Max size of clay participles of 0.002mm/0.04mm/0.002mm

g.     Hydraulic gradient (i) is given by hxL or h/L

h.     Falling head permeability  test is preferable when soil sample is sandy/clayey/sandy gravel.

i.       Neutral stress refers to pore water pressure/saturated weight of soil/submerged wt of soil.

j.       The ratio of settlement at anytime ‘t’ to final settlement is known as coefficient of consolidation/ degree of consolidation.

State true or False.

k.     Clay is highly compressible soil.

l.       In direct shear test, the specimen fails at the weakest plane

m.  On wetting. Cohesive soils loose permeability

n.     Compaction and consolidation are same permeability

o.     Compaction and consolidation are same processes

p.    OMC for days Is more than the sands.

2.     Attempt any ten questions

a.     Differentiate between compaction and consolidation 

b.     Define isobar and pressure bulb.

c.      Give the applications of SPT.

d.     Differentiate between shallow and deep foundations.

e.      What is the necessity of pile foundation?

f.       What is importance and use of soil as a foundation material?

g.     Differentiate between three – phase diagram and two-phase diagram

h.     Explain importance of soil classification

i.       What is five importance of soil classification.

j.       Differentiate between initial consolidation and primary consolidation

k.     State the concept of shear strength.

l.       What are the advantages of direct shear test?

m.  What are the advantages of direct shear test?

Section –C

3.     Attempt any three questions

4.     A soil has a bulk density of 2.0gm/cc and water content of 18% . calculate the water content if the soil partially dries to a density of 1.95 gm/cm3 and voids ratio remains unchanged.

5.         Define Atterberg’s limits. Explain their use and practical significance

6.     What are the important methods used for determining coefficient of permeability of soils in laboratory?

7.     Define pile. Give the necessity of pile foundations. Give the classification of piles.