Geotechnical Engineering 1

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Topics :-
> Soil Formation
> Properties of soils
> Identification and classification of Soil
> Soil Structure and clay Minerals
(Note:- All question are compulsory)

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When the plastic limit of a soil is greater than the liquid limit, then the plasticity index is reported as: [SSC:JE: 2014,WCD:2018]

1 point

Non-plastic

Negative

Zero

Clear selection

Gravel and sand belongs to the following category of soils [SSC:JE: 2014]

1 point

cohesive

marine

alluvial

expansive

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Clay is generally [SSC:JE: 2014]

1 point

cohesive

having large particle size

none of the above

permeable

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If the volume of voids is equal to the volume of solids in a soil mass, than the values of porosity and voids ratio respectively are [SSC:JE: 2013]

1 point

1.0 and 0.5

1.0 and 0.0

0.5 and 1.0

0.0 and 1.0

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Sand particles are made of [SSC:JE: 2013]

1 point

Kaolinite

Montmorillonite

Quartz

Illite

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A fundamental equation of void ratio (e), specific gravity(G), water content (W) and the degree of saturation (S) is [SSC:JE: 2014]

1 point

W=eG/S

G=We/S

S=We/G

e=WG/S

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The volume of voids to the total volume of soil is known as [SSC:JE: 2014]

1 point

air content

air ratio

porosity

void ratio

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The ratio [(Liquid limit-Water content)/ Plasticity index ] for a soil mass is [SSC:JE: 2014,PWD:JE: 2018,MahaTrans: 2018]

1 point

Consistency index

Toughness index

Liquidity index

Shrinkage ratio

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Water content of soil can [SSC:JE: 2012]

1 point

take values only from 0% to 100%

be greater than 100%

be less than 0%

never be greater than 100%

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A soil has an average particle size of 0.2 mm. It is predominantly [SSC:JE: 2011]

1 point

sand

clay

gravel

silt

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