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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If a soil having D₆₀ = 0.42 mm, D₃₀= 0.21 mm and D₁₀ = 0.16 mm, the uniformly coefficient and coefficient of curvature respectively are [MahaTrans: 2018]

1 point

2.6 and 0.65

3.6 and 1.65

3.0 and 2.65

2.0 and 0.60

Clear selection

For a saturated soil, given w = 40% and Gₛ = 2.71, the dry unit weight of soil is [MahaTrans: 2018]

1 point

12.75 kN/m³

10.75 kN/m³

13.75 kN/m³

11.75 kN/m³

Clear selection

A soil has specific gravity of 2.5, water content of 10%, voids ratio of0.25, then degree of saturation is [WRD: 2016]

1 point

100 %

None of these

62.5 %

1 %

Clear selection

If size gradation curve matches with the specified size gradation curve, the soil is [WRD: 2016]

1 point

Finer than Specified gradation

None of these

Coarser than the specified gradation

Of specified gradation

Clear selection

If size gradation curve of the soil lies above the specified size gradation curve, the soil is [WRD: 2016]

1 point

Coarser than the specified gradation

Of specified gradation

Finer than Specified gradation

None of these

Clear selection

If size gradation curve of the soil lies below the specified size gradation curve, the soil is [WRD: 2016]

1 point

Coarser than the specified gradation

Finer than Specified gradation

None of these

Of specified gradation

Clear selection

Which of the following type of soil is impermeable? [WRD: 2016]

1 point

None of these

Sand

Gravel

Silt

Clear selection

Mass of soil removed from core cutter having internal volume of 1 litre is 220 gm, then bulk density of that soil will be [WRD: 2016]

1 point

0.22 gm/cc

22 gm/cc

2.2 gm/cc

220 gm/cc

Clear selection

Loess is a silt deposit by wind. These deposits have [NP: 2018]

1 point

High density and high compressibility

Low density and low compressibility

High density and low compressibility

Low density and high compressibility

Clear selection

If the degree of shrinkage Sr (%) of soil mass is > 15%, then the quality of soil is [NP: 2018]

1 point

good

very poor

poor

medium good

Clear selection

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