Civil Engineering MCQs

Page No. 247

Highway Research Board (HRB) classification of soils is based on__________________?


aparticle size composition


b plasticity characteristics


cboth particle size composition and plasticity characteristics


dnone of the above



Rise of water table above the ground surface causes________________?


aequal increase in pore water pressure and total stress


b equal decrease in pore water pressure and total stress


cincrease in pore water pressure but decrease in total stress


ddecrease in pore water pressure but increase in total stress



Quick sand is a________________?


a type of sand


bflow condition occurring in cohesive soils


cflow condition occurring in cohesionless soils


dflow condition occurring in both cohesive and cohesionless soils


View Answer type of sand

The total and effective stresses at a depth of 5 m below the top level of water in a swimming pool are respectively__________________?


azero and zero


b0.5 kg/cm2 and zero


c0.5 kg/cm2 and 0.5 kg/cm2


d1.0 kg/cm2 and 0.5 kg/cm2


View Answer 0.5 kg/cm2 and zero

The clay mineral with the largest swelling and shrinkage characteristics is_______________?


akaolinite


b illite


cmontmorillonite


d none of the above


View Answer montmorillonite

Sand particles are made of________________?


arock minerals


bkaolinite


cillite


dmontmorillonite


View Answer rock minerals

Dispersed type of soil structure is an arrangement comprising particles having______________?


aface to face or parallel orientation


b edge to edge orientation


c edge to face orientation


dall of the above



Inorganic soils with low compressibility are represented by_________________?


aMH


bSL


c ML


dCH


View Answer ML

If the material of the base of the Casagrande liquid limit device on which the cup containing soil paste drops is softer than the standard hard rubber, then______________?


athe liquid limit of soil always increases


bthe liquid limit of soil always decreases


cthe liquid limit of soil may increase


dthe liquid limit of soil may decrease



Which of the following soils has more plasticity index ?


asand


bsilt


cclay


dgravel


View Answer clay

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