SOIL MECHANICS AND FOUNDATION QUIZ

Rise of water table above the ground surface causes

Equal increase in pore water pressure and total stress

Increase in pore water pressure but decrease in total stress

Decrease in pore water pressure but increase in total stress

Equal decrease in pore water pressure and total stress

TRUE ANSWER : ?
YOUR ANSWER : ?

Residual soils are formed by

water

glaciers

wind

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Highway Research Board (HRB) classification of soils is based on

None of these

particle size composition

both particle size composition and plasticity characteristics

plasticity characteristics

TRUE ANSWER : ?
YOUR ANSWER : ?

Coefficient of consolidation of a soil is affected by

permeability

compressibility

None of these

both compressibility and permeability

TRUE ANSWER : ?
YOUR ANSWER : ?

If the permeability of a soil is 0.8 mm/sec, the type of soil is

gravel

clay

silt

sand

TRUE ANSWER : ?
YOUR ANSWER : ?

The clay mineral with the largest swelling and shrinkage characteristics is

kaolinite

illite

None of these

montmorillonite

TRUE ANSWER : ?
YOUR ANSWER : ?

Coefficient of consolidation for clays normally

increases with increase in liquid limit

first increases and then decreases with increase in liquid limit

decreases with increase in liquid limit

remains constant at all liquid limits

TRUE ANSWER : ?
YOUR ANSWER : ?

The ultimate consolidation settlement of a structure resting on a soil

Increases with the increase in the initial voids ratio

Increases with the decrease in the porosity of the soil

Decreases with the decrease in the plastic limit

Decreases with the increase in the initial voids ratio

TRUE ANSWER : ?
YOUR ANSWER : ?

Inorganic soils with low compressibility are represented by

SL

ML

CH

MH

TRUE ANSWER : ?
YOUR ANSWER : ?

A soil has a bulk density of 22 kN/m3 and water content 10 %. The dry density of soil is

22.0 kN/m3

20.0 kN/m3

18.6 kN/m3

23.2 kN/m3

TRUE ANSWER : ?
YOUR ANSWER : ?

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