Question

Geotechnical engineering

2 heher the following statements are True (T) or False (F) resistance decreases with an increase in the plasticity index of clay. The Coarse grained soils are formed by chemical weathering of rocks. 2) ratio in coarse grained soils are generally greater than that in fine grained soil. 3) Values of void in 4) Consistency 5) As the void ratio of a soil decreases, its strength increases. 6) The liquid limit of a soil cannot exceed 100% .[ 7) The dry density of a soil with zero air content is equal to saturated dry density. s) Darcy's law is valid for flow through gravels. 9) When the soil is fully saturated, the compression occurs mainly due to compression of water. 10) The initial consolidation of a fully saturated soil is zero. I 11) The compression index of normally consolidated soils is constants,[ 12) The expansion index and the recompression index are approximately equal. [ 13) The coefficient of consolidation varies with the change in pressure. grained soil.! limits can be determined for soil in undisturbed conditions. [ 14) The time taken for a one-way drainage layer attain a particular degree of consolidation is twice of that for an equivalent two-way drainage layers. . 15) The field consolidation curve is generally steeper than that of laboratory curve 16) The effective stresses can be measured directly in the field. 17) The shear strength of a soil depends upon its effective stress. 18) In partially saturated soils, the pore air pressure is more than the pore water pressure 19) The flow lines and equipotential lines are orthogonal for an isotropic soil.! 20) The mineral Montmorillonite causes excessive swelling and shrinkage. I

Answer 1

1) The ale ot sheavinte si stunce derseases c he wi ca weatheinq of To CKs False Coavse groin ed Void atio n Coayse graine (3) valuesf Void Yotio ne Can be delermined Consisteny li 5) As the Void Taho f Seil decveases, t.s stvenath increases uc

enced 1o Fatse too Soil to HazeyoAiY (a)The dry density c Content ezual to Sotu vated dr en st Folse avels Fonlse Compre sson 19) The initial Conso lidefon of a fu Sectuvated

daited sois is statFalse (2) Thepan sion inden and the ve cempre s cis 12) The enpan sion inde en ave af0 Yoni mately es ua the havqe CanSo lidahoy ain o povh culby de u1o that foran ejui va lent thoo s twice e) is) The field Consol, deton Cu y ve İsleneely Steepey than that of leCuve Cuyve ot bolo TYue

16) The effective styess n be mea suved divect!ブ in the fi e id | False. t) The s heav stvewyth fSi depends upon ts effecive styessYue ay Satuated soils , the pore ove non扎ne porewater essue false 1) The Plo ines and ezupoken-tal ine s aveethee 26) The ineal mo wtmovilenite Causes encessive