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GEOTECHNICAL ENGINEERING (MIDTERMS) > MT SOURCE > Flashcards

MT SOURCE Flashcards

1
Q

Uncemented aggregate of mineral grains and decayed organic matter (solid particles) along with the liquid and gas that occupy the empty spaces between the solid particles

A

Soil

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2
Q

Introduced the fundamental principles of soil mechanics on which more advanced studies are based.

A

Karl Terzaghi

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3
Q

The science and practice of the part of civil engineering that involves natural materials found close to the surface of the earth.

A

Geotechnical Engineering

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4
Q

He was credited as the first person to use mechanics to solve soil problems.

A

Coulomb

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5
Q

He paid great attention to soil types (sand, gravel, etc.) and to design and construction of solid foundations.

A

Vitruvius

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6
Q

They were formed by movement of soils from its original place by gravity

A

Colluvial Soils

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7
Q

formed by deposition in the seas

A

Marine Soils

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8
Q

are formed from sediments, animals and plant materials that are deposited in water or on land on the earth’s surface and then subjected to pressures and heat.

A

Sedimentary Rocks

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9
Q

are formed from magma (molten rock materials) emitted from volcanoes that have cooled and solidified.

A

Igneous Rocks

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10
Q

are ground fractures.

A

Faults

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11
Q

is the ratio of the weight of water to the weight of solids.

A

Water Content

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12
Q

is the ratio of the volume of void to the total volume of soil.

A

Porosity

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13
Q

is the weight density, that is, the weight of a soil per unit volume.

A

Bulk Unit Weight

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14
Q

is the weight of a dry soil per unit volume.

A

Dry Unit Weight

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15
Q

is an index that quantifies the degree of packing between the loosest and densest state of coarse-grained soil.

A

Relative Density

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16
Q

It is the ratio of soil particles whose diameter for which 60% of the particles are finer over the diameter of the soil particles for which 10% of the particles are finer

A

D60

17
Q

It is the ratio of soil particles which the square of the 30% of the soil particles are finer over the product of the soil particles for which 10% and 60% of the particles are finer

A

D30

18
Q

The average grain size of this soil particles ranges from 4.75mm to 75mm

A

Gravel

19
Q

The average grain size of this soil particles ranges from 0.075mm to 4.75mm

A

Sand

20
Q

The moisture content required to close a distance of ½ inch along the bottom of the groove at exactly 25 blows using the liquid limit device.

A

Liquid Limit

21
Q

moisture content at which the soil, when rolled to 1/8 inch (32.2mm) in diameter crumbles

A

Plastic Limit

22
Q

Soil mass shrinks as moisture is gradually, decreased or lost with continuous loss of moisture, a stage of equilibrium is reached at which more loss of moisture will result to no further volume change.

A

Shrinkage Limit

23
Q

is the ratio of the difference in water content between the natural or in situ water content of a soil and its plastic limit to its plasticity index.

A

Liquidity Index

24
Q

developed one scheme that classifies soils according to their usefulness in roads and highways

A

AASHTO (American Association of State Highway and Transportation Officials)

25
Q

was originally developed for use in airfield construction but was later modified for general use.

A

USCS (Unified Soil Classification System)

26
Q

It delineates the boundaries between clays (above the line) and silts and organic soils (below the line)

A

A-LINE

27
Q

It is appended in parentheses to the main group to provide a measure of quality of soil as highway subgrade material.

A

Group Index

28
Q

The value of your answer in 29 if it fall on A-1 and A-3

A

Zero

29
Q

The average grain size of this soil particles is less than 0.002mm

A

Clay

30
Q

A Swedish scientist who developed a method to describe the consistency of fine grained soils

A

Attenberg

GEOTECHNICAL ENGINEERING (MIDTERMS) (5 decks)

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