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Geotechnical Engineering MCQ

What does Consolidated-Undrained test assess?

The strength of soil under applied normal loads without drainage

Quick test for compaction of soil

The amount of water drainage from the soil

The strength of the soil under no applied normal loads

Answer

Correct Answer: The strength of soil under applied normal loads without drainage

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What is compressibility?

Property of a soil pertaining to its susceptibility to increase in density, when subjected to load

Property of a soil pertaining to its susceptibility to increase in volume, when subjected to water

Property of a soil pertaining to its susceptibility to increase in volume, when subjected to load

Property of a soil pertaining to its susceptibility to decrease in volume, when subjected to load

Answer

Correct Answer: Property of a soil pertaining to its susceptibility to decrease in volume, when subjected to load

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What is the compression of a soil layer per unit of original thickness due to a given unit increase in pressure equal to?

The coefficient of compressibility minus one plus the original void ratio

The coefficient of compressibility divided by one plus the original void ratio

The coefficient of compressibility added to one plus the original void ratio

The coefficient of compressibility multiplied by one plus the original void ratio

Answer

Correct Answer: The coefficient of compressibility divided by one plus the original void ratio

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What is the coefficient of volume compressibility?

It is numerically equal to the coefficient of compressibility

Divided by one plus the original void ratio,

The compression of a soil layer per unit of original thickness due to a given unit increase in pressure.

Answer

Correct Answer: The compression of a soil layer per unit of original thickness due to a given unit increase in pressure.

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What is the coefficient of uniformity?

D60/D20

D50/D10

D60/D10

D70/D10

Answer

Correct Answer: D60/D10

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What is the value of D60/D10 known as?

Diameter of the particle

Coefficient of uniformity

Percentage of finer

Grain size curve

Answer

Correct Answer: Coefficient of uniformity

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What is deviator stress?

The difference between the shear and radial stresses of a triaxial test sample.

The difference between the axial and radial stresses of a triaxial test sample.

The difference between the axial and shear stresses of a triaxial test sample.

The difference between the tangential and radial stresses of a triaxial test sample.

Answer

Correct Answer: The difference between the axial and radial stresses of a triaxial test sample.

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What is the density of water at sea level?

64.0 lbm/ft³

1000 kg/m³

9.81 kN/m³

62.4 lbm/ft³

Answer

Correct Answer: 64.0 lbm/ft³

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What is the average density of the mineral or rock that soil particles are composed of?

Density of air

Density of dirt

Density of soil grains

Density of water

Answer

Correct Answer: Density of soil grains

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What is the density index?

The degree to which a substance is compacted or concentrated

The force required to move an object of a given mass a given distance against a gravitational field

The density of a granular soil relative to the minimum and maximum densities achieved for that particular soil.

The amount of space between particles in a material

Answer

Correct Answer: The density of a granular soil relative to the minimum and maximum densities achieved for that particular soil.

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What is density?

The ratio of the total volume to the total mass of a unit of soil.

The type of soil.

The amount of water in a unit of soil.

The ratio of the total mass to the total volume of a unit of soil.

Answer

Correct Answer: The ratio of the total mass to the total volume of a unit of soil.

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What is the ratio of the total mass to the total volume of a unit of soil?

Density

Mass

Volume

Weight

Answer

Correct Answer: Density

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The degree of saturation of a given mass of soil is the _____.

Proportion of the dry weight of a soil to the total dry weight

Volume of water uptake by plants per unit of biomass

Proportion of the volume of water to the total volume of voids

Depth to which water has infiltrated

Answer

Correct Answer: Proportion of the volume of water to the total volume of voids

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What is the degree of saturation?

The proportion of the volume of water to the total volume of voids of a given mass of soil.

The amount of water in a given volume of soil

The amount of water that can be held by a given volume of soil

The amount of water needed to saturate a given volume of soil.

Answer

Correct Answer: The proportion of the volume of water to the total volume of voids of a given mass of soil.

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After a given elapsed time, what is the proportion of consolidation that has occurred?

Degree of consolidation

Proportion

Elapsed time

Time

Answer

Correct Answer: Degree of consolidation

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What is the degree of consolidation?

The increase in strength of a soil due to the load-induced reduction in porosity.

The change in water content of a soil due to the load-induced reduction in porosity.

Proportion of consolidation that has occurred after a given elapsed time.

The amount of force required to compact a soil specimen.

Answer

Correct Answer: Proportion of consolidation that has occurred after a given elapsed time.

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What is the velocity of flow in Darcy's law?

Hydraulic conductivity + hydraulic gradient.

Hydraulic conductivity X hydraulic gradient.

Hydraulic gradient / hydraulic conductivity

Hydraulic gradient - hydraulic conductivity

Answer

Correct Answer: Hydraulic conductivity X hydraulic gradient.

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What is the cyclic stress ratio?

The potential for liquefaction in sands.

A measure of the amount of stress that can cause liquefaction in sands.

A type of stress that can cause liquefaction in sands.

A numerical rating of the potential for liquefaction in sands.

Answer

Correct Answer: A numerical rating of the potential for liquefaction in sands.

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What is the critical hydraulic gradient?

The hydraulic gradient at which pore water pressure becomes zero.

The hydraulic gradient at which effective stresses becomes zero.

The hydraulic gradient at which total stresses become zero.

The hydraulic gradient at which effective stresses become maximum.

Answer

Correct Answer: The hydraulic gradient at which effective stresses becomes zero.

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What is critical hydraulic gradient?

The force required to move a liquid through a pipe.

The point at which a liquid will no longer flow.

The hydraulic gradient at which effective stresses become zero.

The hydraulic gradient at which total stresses become zero.

Answer

Correct Answer: The hydraulic gradient at which effective stresses become zero.

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What is the critical height of a slope?

The height of a slope that is safe from slope failure

The height of a slope that corresponds to a factor of safety of 1.0 relative to slope failure.

The height of a slope that is unsafe from slope failure

There is no such thing as a critical height

Answer

Correct Answer: The height of a slope that corresponds to a factor of safety of 1.0 relative to slope failure.

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What is the critical circle?

The largest slip circle.

The slip circle that corresponds to the lowest factor of safety.

The deepest slip circle.

The shortest slip circle.

Answer

Correct Answer: The slip circle that corresponds to the lowest factor of safety.

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What is Creep?

A type of ghost

Time dependent deformations which occurs in soil at constant effective stress without changes in volume and pore water pressure.

A type of spider

A mineral

Answer

Correct Answer: Time dependent deformations which occurs in soil at constant effective stress without changes in volume and pore water pressure.

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What is Coulomb's equation named after?

Charles Augustin Coulomb

Isaac Newton

James Clerk Maxwell

Michael Faraday

Answer

Correct Answer: Charles Augustin Coulomb

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What is Coulomb's equation?

An equation used to calculate the amount of work done by a force

An equation used to calculate acceleration due to gravity

An equation used to calculate electric force between two charges

An equation relating the shear strength of soil to the normal effective stress on the failure plane.

Answer

Correct Answer: An equation relating the shear strength of soil to the normal effective stress on the failure plane.

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What is the name of the earth pressure theory that includes friction between the soil and retaining structure?

Bernoulli's principle

Coulomb earth pressure theory

Newton's laws of motion

Hooke's law

Answer

Correct Answer: Coulomb earth pressure theory

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What does Coulomb earth pressure theory take into account?

Friction between the soil and retaining structure

Soil structure and composition

Stress between particles of soil

Only liquid water in the soil

Answer

Correct Answer: Friction between the soil and retaining structure

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What is a horizontally long footing which supports a wall called?

Isolated footing

Shallow footing

Strip footing

Continuous footing

Answer

Correct Answer: Continuous footing

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What is a continuous footing?

A wall that supports a ceiling

A wall built on top of a hill

A wall that is five feet tall

A horizontally long footing supporting a wall.

Answer

Correct Answer: A horizontally long footing supporting a wall.

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What is a consolidation test used for?

Measuring the consolidation of a soil under applied structural loads

Predicting consolidation of a soil under applied structural loads

Determining the strength of a soil

Determining the compressibility of a soil

Answer

Correct Answer: Predicting consolidation of a soil under applied structural loads

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What is the consistency index?

A measure of the relationship between the current water content and the consistency limits.

The amount of water necessary to achieve full saturation

A measure of the hardness of a substance

The amount of water required to maintain soil fertility

Answer

Correct Answer: A measure of the relationship between the current water content and the consistency limits.

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What is the consistency index a measure of?

The rate at which water is absorbed

The amount of water needed to maintain consistency

The amount of water that can be added before consistency is lost

The relationship between the current water content and the consistency limits.

Answer

Correct Answer: The relationship between the current water content and the consistency limits.

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What is water content of clay relative to the Atterberg limits?

Hardness

Consistency

Porosity

Refractoriness

Answer

Correct Answer: Consistency

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What is an aquifer?

A body of water beneath the earth's surface from which water may be drawn by natural means.

A body of water on the earth's surface.

A natural hot spring.

A man-made lake.

Answer

Correct Answer: A body of water beneath the earth's surface from which water may be drawn by natural means.

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What is the point of the cone used in a cone penetration test?

120º

45º

60º

90º

Answer

Correct Answer: 60º

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Cone resistance is measured during which test?

Cone penetration test

Cone collapse test

Cone tension test

Cone bearing test

Answer

Correct Answer: Cone penetration test

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What is the compression test used for?

To measure the amount of compression the soil undergoes.

To determine the amount of compaction in the soil

To determine the amount of water in the soil

To determine the porosity of the soil

Answer

Correct Answer: To measure the amount of compression the soil undergoes.

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What is the purpose of the compression test?

To determine the moisture content of the soil

To determine the bulk density of the soil

To determine the void ratio of the soil

To estimate the amount of compression the soil undergoes

Answer

Correct Answer: To estimate the amount of compression the soil undergoes

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What is the compressibility index?

The slope of the critical state line of the Casagrande Method of consolidation curves.

The logarithmic slope of the secondary consolidation curve.

The logarithmic slope of the primary consolidation curve.

The slope of the normal compression line.

Answer

Correct Answer: The logarithmic slope of the primary consolidation curve.

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What causes compaction?

Decrease in air content

Increase in water content

Increase in organic matter

Vibration, self-weight

Answer

Correct Answer: Vibration, self-weight

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What are colluvial soils?

Soils deposited at the base of foot-hills via gravity or erosion.

Soils deposited by glaciers

Soils weathered from rocks

Soils deposited by rivers

Answer

Correct Answer: Soils deposited at the base of foot-hills via gravity or erosion.

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Colluvial soils are deposited at the base of _____.

Foot-hills

Mountains

Valleys

Rivers

Answer

Correct Answer: Foot-hills

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What is the force that holds together molecules or like particles within a substance called?

Capillarity

Adhesion

Cohesion

Diffusion

Answer

Correct Answer: Cohesion

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What is the definition of a cohesionless soil?

Soil that is rich in organic matter.

Granular soils (sand and gravel type) with values of cohesion close to zero.

Soil that is not sticky and can easily be crumbled in your hand.

Soil with a high clay content.

Answer

Correct Answer: Granular soils (sand and gravel type) with values of cohesion close to zero.

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What is a cofferdam?

A large chest for storing valuables

A temporary structure used to enclose a construction area, and prevent soil or water from entering the construction area.

A device used to measure the depth of water

A type of roofing material

Answer

Correct Answer: A temporary structure used to enclose a construction area, and prevent soil or water from entering the construction area.

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What is the coefficient of uniformity a measure of?

The weight of the grain

The uniformity of the soil

The slope of a grain size distribution curve

The size of the grain

Answer

Correct Answer: The slope of a grain size distribution curve

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What is coefficient of secondary consolidation?

The change in moisture content per a logarithmic cycle of time after primary consolidation is complete.

The change in voids per a logarithmic cycle of time after primary consolidation is complete.

The change in pressure per a logarithmic cycle of time after primary consolidation is complete.

The change in volumetric strain per a logarithmic cycle of time after primary consolidation is complete.

Answer

Correct Answer: The change in volumetric strain per a logarithmic cycle of time after primary consolidation is complete.

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What is the definition of coefficient of permeability?

The ratio of the transmitted to the incident light

A measure of the resistance to flow of a porous material

Hydraulic conductivity

The speed of light in a vacuum

Answer

Correct Answer: Hydraulic conductivity

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What is the coefficient of curvature a measure of?

Amount of curvature in a distribution curve.

Seasonality of a distribution curve.

The width of a distribution curve.

Shape parameter obtained from a grain size distribution curve.

Answer

Correct Answer: Shape parameter obtained from a grain size distribution curve.

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What is the coefficient of curvature?

A measure of the speed of light in a given medium

A measure of the amount of matter in a given volume

A measure of the shape parameter obtained from a grain size distribution curve.

The degree to which a curve deviates from a straight line

Answer

Correct Answer: A measure of the shape parameter obtained from a grain size distribution curve.

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What is the coefficient of consolidation?

The rate of change of volume during secondary consolidation.

The rate of change of weight during secondary consolidation.

The rate of change of volume during primary consolidation.

The rate of change of weight during primary consolidation.

Answer

Correct Answer: The rate of change of volume during primary consolidation.

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What is the unit of Coefficient of Consolidation?

Ft²/s, m²/s

Ft³/s, m³/s

Ft/day, m/s

Ft²/day, m²/s

Answer

Correct Answer: Ft²/day, m²/s

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What is the coefficient of compressibility?

The ratio of void ratio to the effective pressure difference

The difference of void ratio to the effective pressure difference

The ratio of void ratio difference to the effective pressure difference

The difference of void ratio to the effective pressure

Answer

Correct Answer: The ratio of void ratio difference to the effective pressure difference

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The coefficient of compressibility is the ratio of what to what?

Void ratio difference to the effective pressure difference

Primary consolidation to the void ratio difference

Void ratio difference to the secondary consolidation

Effective pressure difference to the void ratio difference

Answer

Correct Answer: Void ratio difference to the effective pressure difference

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What is the size range of cobbles?

1 inch (25 mm) to 9 inches (229 mm)

2 inches (51 mm) to 10 inches (254 mm)

3 inches (76 mm) to 12 inches (305 mm)

4 inches (102 mm) to 11 inches (279 mm)

Answer

Correct Answer: 3 inches (76 mm) to 12 inches (305 mm)

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What is the minimum percentage of grains retained on the #200 sieve for a soil to be considered coarse-grained?

50%

75%

80%

60%

Answer

Correct Answer: 50%

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What is the definition of coarse-grained soils?

Soils with more than 50% by weight of grains retained on the #200 sieve (0.075mm).

Soils with more than 50% by weight of grains retained on the #350 sieve (0.0441mm).

Soils with more than 50% by weight of grains retained on the #100 sieve (0.149mm).

Soils with more than 50% by weight of grains retained on the #150 sieve (0.105mm).

Answer

Correct Answer: Soils with more than 50% by weight of grains retained on the #200 sieve (0.075mm).

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What is the size of Clay Soil particles?

0.004 mm

0.003 mm

0.001 mm

0.002 mm

Answer

Correct Answer: 0.002 mm

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What is a circular footing?

A footing that is circular shaped and spread out

Isolated/ spread footing that is circular shaped.

A footing that is used to support circular structures.

A type of load-bearing foundation

Answer

Correct Answer: Isolated/ spread footing that is circular shaped.

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What produces capillary stresses?

Hydrostatic pressure

Surface tension of pore water

Thermal expansion

Fluid pressure

Answer

Correct Answer: Surface tension of pore water

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Which of the following is not a result of capillary stresses?

Soil erosion

Meniscus in void spaces

Pore water pressures greater than atmospheric values

Soil particles compacting

Answer

Correct Answer: Pore water pressures greater than atmospheric values

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What is the California Bearing Ratio (CBR) used for?

To determine the suitability of a soil for use as a base in a pavement section.

To determine the hardness of a soil.

To determine the suitability of a soil for use as a top layer in a pavement section.

To determine the suitability of a soil for use as a subbase in a pavement section.

Answer

Correct Answer: To determine the suitability of a soil for use as a subbase in a pavement section.

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What does CBR stand for?

California Bearing Ratio

Controlled Breaking Ratio

Chinese Balloon Route

Cannot Be Repeated

Answer

Correct Answer: California Bearing Ratio

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What is a Caisson?

An architectural term for a recessed panel in a wall

A component of a particular foundation system.

A large watertight chamber used in the construction of bridges and tunnels

A French word for

Answer

Correct Answer: A component of a particular foundation system.

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Buoyant density is equal to what?

Soil density / Density of water

Soil density - Density of water

Soil density + Density of water

Density of water - Soil density

Answer

Correct Answer: Soil density - Density of water

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What is the bulk unit weight?

The total weight of water and soil particles contained in a unit volume of air.

The total weight of water and soil particles contained in a unit mass of soil.

The total weight of water and soil particles contained in a unit volume of soil.

The total weight of water and soil particles contained in a unit area of soil.

Answer

Correct Answer: The total weight of water and soil particles contained in a unit volume of soil.

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What is the unit of measurement for Bulk density?

Oz/gal

Kg/m^3

Pcf

G/mL

Answer

Correct Answer: Pcf

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What is the mass of water and soil particles contained in a unit volume of soil called?

Soil Density

Unit Volume

Bulk density

Volume Mass

Answer

Correct Answer: Bulk density

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What is the British Soil Classification System based on?

Colour

Size, consistency and structure

Soil Type

Answer

Correct Answer: Size, consistency and structure

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What does the British Soil Classification System classify soils on?

PH Level

Color

Fertility

Size, consistency, and structure.

Answer

Correct Answer: Size, consistency, and structure.

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What is braced excavation?

The process of shoring up a trench

A type of machine used in construction

The use of bracing to laterally support the side-walls of temporary trenches or cuts.

When two beams are placed back-to-back to support each other

Answer

Correct Answer: The use of bracing to laterally support the side-walls of temporary trenches or cuts.

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What is a borrow?

A site that is used to supply soils for earthwork construction

A large sum of money that is borrowed and then needs to be repaid

An adjective

A type ofverb

Answer

Correct Answer: A site that is used to supply soils for earthwork construction

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What is the definition of bedrock?

Igneous rock formed from solidified lava

Strong rock underlying surface deposits of soil and weathered rock.

A type of sedimentary rock

Earth's outermost solid layer

Answer

Correct Answer: Strong rock underlying surface deposits of soil and weathered rock.

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What is the total stress transferred from the structure to the foundation called?

Compressive stress

Bearing pressure

Flexural stress

Shear stress

Answer

Correct Answer: Bearing pressure

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What does bearing pressure refer to?

The pressure on the soil below the foundation

The weight of the building transferred to the foundation

The load on the foundation

The total stress transferred from the structure to the foundation, then to the soil below the foundation.

Answer

Correct Answer: The total stress transferred from the structure to the foundation, then to the soil below the foundation.

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What do bearing capacity factors represent?

The angle of internal friction of the soil

The load-bearing capacity of the soil

The type of foundation

The amount of soil erosion

Answer

Correct Answer: The angle of internal friction of the soil

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What is the definition of bearing capacity?

The ability of the underlying soil to support the foundation loads without shear failure.

The load at which failure of the soil begins.

The minimum load that can be applied to an soil without failure.

The maximum load that can be applied to an soil without failure.

Answer

Correct Answer: The ability of the underlying soil to support the foundation loads without shear failure.

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What is the sum of the confining and vertical stresses along an axis of a triaxial test sample called?

Axial stress

Contact stress

Torsional stress

Combination stress

Answer

Correct Answer: Axial stress

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What is axial stress?

Both horizontal and vertical stresses acting along an axis of a triaxial test sample.

Confining stress acting along an axis of a triaxial test sample.

Vertical stress acting along an axis of a triaxial test sample.

Total or effective stress acting along an axis of a triaxial test sample.

Answer

Correct Answer: Total or effective stress acting along an axis of a triaxial test sample.

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What is axial strain?

Strain measured perpendicular to the applied load on a Sample

The ratio of deformation to original dimensions.

Direct strain measured along an axis of a triaxial test sample.

Direct stress measured along an axis of a triaxial test sample

Answer

Correct Answer: Direct strain measured along an axis of a triaxial test sample.

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What do the Atterberg Limits test for?

The texture of clay and silt particles

The transition between a solid, semi-solid, plastic solid or liquid

The hardness of a soil mass

The amount of water in a soil mass

Answer

Correct Answer: The transition between a solid, semi-solid, plastic solid or liquid

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What are the Atterberg Limits?

The maximum density of a substance

The point at which a substance changes from a liquid to a gas

The temperature at which water turns to ice

The water contents of a soil mass corresponding to the transition between a solid, semi-solid, plastic solid or liquid.

Answer

Correct Answer: The water contents of a soil mass corresponding to the transition between a solid, semi-solid, plastic solid or liquid.

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What is at-rest earth pressure?

The vertical stress developed in a mass of soil loaded in conditions of zero horizontal strain.

The horizontal stress developed in a mass of soil loaded in conditions of zero horizontal strain.

The vertical stress developed in a mass of soil loaded in conditions of zero vertical strain.

The horizontal stress developed in a mass of soil loaded in conditions of zero vertical strain.

Answer

Correct Answer: The horizontal stress developed in a mass of soil loaded in conditions of zero horizontal strain.

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What is the definition of artesian?

A well in which water rises to the surface by hydrostatic pressure.

A condition that exists when the water table piezometric surface lies above the ground level.

A water table that has water present all year long.

A natural underground reservoir in which water is under pressure.

Answer

Correct Answer: A condition that exists when the water table piezometric surface lies above the ground level.

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What is the meaning of "Aquifer"?

A method of irrigation that uses a network of pipes to transport water

A device used to measure the depth of water in a well

A large body of water, such as a lake or ocean

A stratum of soil with relatively high permeability; a water-bearing stratum of rock or soil.

Answer

Correct Answer: A stratum of soil with relatively high permeability; a water-bearing stratum of rock or soil.

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What does the term "anisotropic" refer to?

Soil having similar properties in all directions

Soil composed of organic material

Soil composed of inorganic material

Soil having different properties in different directions

Answer

Correct Answer: Soil having different properties in different directions

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What is the ratio between the relative deflection between two points in a foundation and the distance between them called?

Angular distortion

Linear distortion

Planar distortion

Vertical distortion

Answer

Correct Answer: Angular distortion

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What is the angle of wall friction?

A measure of how far one object is from another

The slope of a line segment

The angle between two lines

The angle of friction between soil and the surface of a retaining wall or bottom side of a foundation.

Answer

Correct Answer: The angle of friction between soil and the surface of a retaining wall or bottom side of a foundation.

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The angle of friction between soil and the bottom side of a foundation is known as the ___________.

Angle of wall friction

Foundation

Angle of wall friction

Slope

Soil

Answer

Correct Answer: Angle of wall friction

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What is the angle referred to horizontal of a plane or other surface along which a discontinuous slip or rupture may occur?

Angle of slip plane

Angle of depression

Angle of transmutation

Angle of incidence

Answer

Correct Answer: Angle of slip plane

Note: This Question is unanswered, help us to find answer for this one

Angle of slip plane refers to the angle of ________.

The force that holds particles together in a solid

The melting point of a substance

A plane or other surface along which a discontinuous slip or rupture may occur

The freezing point of a substance

Answer

Correct Answer: A plane or other surface along which a discontinuous slip or rupture may occur

Note: This Question is unanswered, help us to find answer for this one

What does the angle of shearing resistance measure?

The amount of energy required to shear a material

The maximum stress a material can withstand

The amount of deformation a material can undergo before failure

The ratio of effective shear and normal stresses mobilized at any state prior to failure.

Answer

Correct Answer: The ratio of effective shear and normal stresses mobilized at any state prior to failure.

Note: This Question is unanswered, help us to find answer for this one

What is the angle of repose?

The maximum angle, just before failure, of a slope composed of granular material

The maximum angle, just before success, of a slope composed of granular material

The minimum angle, just before success, of a slope composed of granular material

The minimum angle, just before failure, of a slope composed of granular material

Answer

Correct Answer: The maximum angle, just before failure, of a slope composed of granular material

Note: This Question is unanswered, help us to find answer for this one

At which angle does shear failure occur for a given soil?

Angle of internal friction

Maximum Normal Stress

Minimum Shear Stress

Failure Stress

Answer

Correct Answer: Angle of internal friction

Note: This Question is unanswered, help us to find answer for this one

What does AASHTO stand for?

American Association of State Highway Transportation Officials

American Association of Schools and Hospitals

American Association of State and Highway Transportation Officials

American Association of State Highway Transportation Officials' Classification System

Answer

Correct Answer: American Association of State Highway Transportation Officials' Classification System

Note: This Question is unanswered, help us to find answer for this one

What are alluvial soils?

Soils deposited by glaciers

Soils deposited in a valley or slightly graded area by transporting sediments through a mountain river or streams.

Soils deposited by wind

Soils deposited in a valley

Answer

Correct Answer: Soils deposited in a valley or slightly graded area by transporting sediments through a mountain river or streams.

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The bearing pressure that can be allowed on a foundation soil is called the ___________.

Allowable bearing capacity

Safe bearing capacity

Maximum bearing capacity

Average bearing capacity

Answer

Correct Answer: Allowable bearing capacity

Note: This Question is unanswered, help us to find answer for this one

The air-voids ratio is the ratio of _____.

The volume of air to the total volume of a mass of soil

The volume of air to the volume of water in a mass of soil

The volume of water to the total volume of a mass of soil

The weight of air to the total weight of a mass of soil

Answer

Correct Answer: The volume of air to the total volume of a mass of soil

Note: This Question is unanswered, help us to find answer for this one

What is the air-void ratio?

The ratio of the volume of water to the total volume of a mass of soil.

The ratio of the organic matter to the total volume of a mass of soil.

The ratio of the volume of minerals to the total volume of a mass of soil.

The ratio of the volume of air to the total volume of a mass of soil.

Answer

Correct Answer: The ratio of the volume of air to the total volume of a mass of soil.

Note: This Question is unanswered, help us to find answer for this one

What is Adhesion?

The physical process of a liquid changing into a gas

The force that attracts unlike molecules to each other

Soil erosion

The shear resistance between soil and a structure

Answer

Correct Answer: The shear resistance between soil and a structure

Note: This Question is unanswered, help us to find answer for this one

What is the shear resistance between soil and a structure called?

Cohesion

Soil

Adhesion

Friction

Answer

Correct Answer: Adhesion

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What is the ratio of plasticity index to percent by weight of clay?

The ratio of plasticity index to percent by weight of sand.

The ratio of plasticity index to percent by weight of gravel.

The ratio of plasticity index to percent by weight of silt.

The ratio of plasticity index to percent by weight of clay.

Answer

Correct Answer: The ratio of plasticity index to percent by weight of clay.

Note: This Question is unanswered, help us to find answer for this one

What is the purpose of an Active Zone?

To maintain the structure's integrity

To stop soil erosion

To keep the area behind the retaining structure from becoming unstable

The area behind a retaining structure that is above the failure plane.

Answer

Correct Answer: The area behind a retaining structure that is above the failure plane.

Note: This Question is unanswered, help us to find answer for this one

What is the area behind a retaining structure called if it is above the failure plane?

Passive (Rankine) zone

Incidental (Rankine) zone

Static (Rankine) zone

Active (Rankine) zone

Answer

Correct Answer: Active (Rankine) zone

Note: This Question is unanswered, help us to find answer for this one

What is the horizontal stress exerted by a mass of soil on a retaining wall called?

Static earth pressure

Active earth pressure

Passive earth pressure

Elastic earth pressure

Answer

Correct Answer: Active earth pressure

Note: This Question is unanswered, help us to find answer for this one

Retaining walls are used to resist _____.

The vertical stress exerted by a mass of water

The horizontal stress exerted by a mass of water

The vertical stress exerted by a mass of soil

The horizontal stress exerted by a mass of soil

Answer

Correct Answer: The horizontal stress exerted by a mass of soil

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