Define void ratio; porosity; water content and degree of saturation.

Define void ratio; porosity; water content and degree of saturation.
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Answer :

i) Voids Ratio: Voids ratio e of a given soil sample is the ratio of the volume of voids to the volume of soil solids in the given soil mass. e=Vv/Vs

ii) Porosity: The ratio of volume of voids (Vv)to the volume of soil (V) is called as Porosity (n) n= Vv / V x 100

iii) Water The water content w, also called as moisture content, is defined as the ratio of weight of water Ww to the weight of solids (Ws or Wd)in a given mass of soil w= Ww/Wd x 100

iv) Degree of saturation: The degree saturation is a ratio of the volume of water in the voids to the volume of voids. It is expressed as per cent

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Related questions

Define: 1) Degree of saturation and 2) Air content.

Description : Define: 1) Degree of saturation and 2) Air content.

Last Answer : i) Degree of saturation: The degree saturation is a ratio of the volume of water in the voids to the volume of voids. It is expressed as per cent ii) Air When soil mass is completely dry the ... = Vv Air content is defined as ratio of volume of air to volume of voids, i.e ac =Va/Vv

Define : i. Void ratio ii. Water content.

Description : Define : i. Void ratio ii. Water content. 

Last Answer : i. Void Ratio: It is the ratio of volume of voids to the volume of solids.  ii. Water It is the ratio of the weight of water (Ww) to the weight of solids (Ws). 

The ratio of the volume of water present in a given soil mass to the total volume of its voids, is known (A) Porosity (B) Void ratio (C) Percentage voids (D) Degree of saturation

Description : The ratio of the volume of water present in a given soil mass to the total volume of its voids, is known (A) Porosity (B) Void ratio (C) Percentage voids (D) Degree of saturation

Last Answer : Answer: Option D

The ratio of volume of air voids to the volume of voids is known as a) Percentage of air voids b) Porosity c) Degree of saturation d) Air content*

Description : The ratio of volume of air voids to the volume of voids is known as a) Percentage of air voids b) Porosity c) Degree of saturation d) Air content*

Last Answer : d) Air content*

A fundamental equation of void ratio (e), specific gravity (G), water content and degree of saturation (Sr ) is (A) e = /Sr(B) = eG/Sr(C) G = /S(D) Sr = /G

Description : A fundamental equation of void ratio (e), specific gravity (G), water content and degree of saturation (Sr ) is (A) e = /Sr (B) = eG/Sr (C) G = /S (D) Sr = /G

Last Answer : (A) e = /Sr

Degree of saturation of a natural soil deposit having water content 15%, specific gravity 2.50 and void ratio 0.5, is (A) 50 % (B) 60 % (C) 75 % (D) 80 %

Description : Degree of saturation of a natural soil deposit having water content 15%, specific gravity 2.50 and void ratio 0.5, is (A) 50 % (B) 60 % (C) 75 % (D) 80 %

Last Answer : (C) 75 %

If water content of a soil is 40%, G is 2.70 and void ratio is 1.35, the degree of saturation is (A) 70 % (B) 75 % (C) 80 % (D) 85 %

Description : If water content of a soil is 40%, G is 2.70 and void ratio is 1.35, the degree of saturation is (A) 70 % (B) 75 % (C) 80 % (D) 85 %

Last Answer : Answer: Option C

The natural water content of the soil sample was found to be 40%, specific gravity is 2.7 and void ratio 1.2; then the degree of saturation of the soil will be (a) 100% (b) 69% (c) 87% (d) 90%

Description : The natural water content of the soil sample was found to be 40%, specific gravity is 2.7 and void ratio 1.2; then the degree of saturation of the soil will be (a) 100% (b) 69% (c) 87% (d) 90%

Last Answer : (d) 90%

The fundamental equation of air content (ac ), degree of saturation (Sr ) and void ratio (e), is (A) ac = e (1 - Sr )/(1 - e) (B) ac = e (1 + Sr )/(1 + e) (C) ac = e (1 - Sr )/(1 + e) (D) ac = e (1 + Sr )/(1 - e)

Description : The fundamental equation of air content (ac ), degree of saturation (Sr ) and void ratio (e), is (A) ac = e (1 - Sr )/(1 - e) (B) ac = e (1 + Sr )/(1 + e) (C) ac = e (1 - Sr )/(1 + e) (D) ac = e (1 + Sr )/(1 - e)

Last Answer : (C) ac = e (1 - Sr )/(1 + e)

Define term porosity.

Description : Define term porosity. 

Last Answer : Porosity- It is the ratio of volume of voids to the total volume of soil , measured in percentage is called as porosity. 

PROBLEM EA Sample of moist soil has a water content of 20.0% and the moist unit weight of 21.09 KN/cu.meter. The specific gravity of the soil is 2.75. Compute the degree of saturation and the value of porosity?

Description : PROBLEM EA Sample of moist soil has a water content of 20.0% and the moist unit weight of 21.09 KN/cu.meter. The specific gravity of the soil is 2.75. Compute the degree of saturation and the value of porosity?

Last Answer : two seconds

Define water content and voids ratio of soil.

Description : Define water content and voids ratio of soil.

Last Answer : Water content- It is the ratio of weight of water to weight of soil soilds which is measured in percentage called as water content.  Voids ratio – It is the ratio of volume of voids to volume of solids called as voids ratio.

The ratio of the weight of given volume of soil solids to the weight of an equal volume of distilled water at the given temperature, is known (A) Porosity (B) Specific gravity (C) Void ratio (D) Water content

Description : The ratio of the weight of given volume of soil solids to the weight of an equal volume of distilled water at the given temperature, is known (A) Porosity (B) Specific gravity (C) Void ratio (D) Water content

Last Answer : (B) Specific gravity

The ratio of the volume of voids to the volume of soil solids in a given soil mass, is known (A) Porosity (B) Specific gravity (C) Void ratio (D) Water content

Description : The ratio of the volume of voids to the volume of soil solids in a given soil mass, is known (A) Porosity (B) Specific gravity (C) Void ratio (D) Water content

Last Answer : (C) Void ratio

The ratio of the volume of voids to the total volume of the given soil mass, is known (A) Porosity (B) Specific gravity (C) Void ratio (D) Water content

Description : The ratio of the volume of voids to the total volume of the given soil mass, is known (A) Porosity (B) Specific gravity (C) Void ratio (D) Water content

Last Answer : (A) Porosity

The ratio of the weight of water to the weight of solids in a given mass of soil, is known (A) Porosity (B) Specific gravity (C) Void ratio (D) Water content

Description : The ratio of the weight of water to the weight of solids in a given mass of soil, is known (A) Porosity (B) Specific gravity (C) Void ratio (D) Water content

Last Answer : Answer: Option D

PROBLEM GThe moist unit weights of the soil are 105.73 pcf and 112.67 pcf, and the respective degree of saturation are 50.0% and 75.0%, compute the values of thevoid ratio, porosity, and specific gravity of the given soil?

Description : PROBLEM GThe moist unit weights of the soil are 105.73 pcf and 112.67 pcf, and the respective degree of saturation are 50.0% and 75.0%, compute the values of thevoid ratio, porosity, and specific gravity of the given soil?

Last Answer : Pressuron theory (2013) by Olivier Minazzoli and Aurélien Hees

The general relationship between specific gravity (G), weight of water ( ), degree of saturation (Sr ), void ratio (e) and bulk density ( ), is (A) = (S - eSr ) /(1 + e) (B) = (G + eSr ) /(1 + e) (C) = (1 + e) /(G + Sr ) (D) = (1 - Sr ) e/(G + Sr )

Description : The general relationship between specific gravity (G), weight of water ( ), degree of saturation (Sr ), void ratio (e) and bulk density ( ), is (A) = (S - eSr ) /(1 + e) (B) = (G + eSr ) /(1 + e) (C) = (1 + e) /(G + Sr ) (D) = (1 - Sr ) e/(G + Sr )

Last Answer : (B) = (G + eSr ) /(1 + e)

The ratio of volume of water present in a given soil sample to the total volume of voids in it is known as a) Percentage of air voids b) Degree of saturation * c) Void rat

Description : The ratio of volume of water present in a given soil sample to the total volume of voids in it is known as a) Percentage of air voids b) Degree of saturation * c) Void rat

Last Answer : b) Degree of saturation *

PROBLEM FA sample of soft saturated clay weighs 350 grams and has a volume of 205cc. After oven drying, the soil weighs 225 grams. Calculate the values of saturated unit weight, void ratio, porosity and specific gravity?

Description : PROBLEM FA sample of soft saturated clay weighs 350 grams and has a volume of 205cc. After oven drying, the soil weighs 225 grams. Calculate the values of saturated unit weight, void ratio, porosity and specific gravity?

Last Answer : {

The relationship between void ratio (e) and porosity ratio (n) is: (A) n = (1 + e )/(1 - e) (B) e = (1 + n)/(1 - e) (C) n = e/(1 - e) (D) e = n/(1 - n)

Description : The relationship between void ratio (e) and porosity ratio (n) is: (A) n = (1 + e )/(1 - e) (B) e = (1 + n)/(1 - e) (C) n = e/(1 - e) (D) e = n/(1 - n)

Last Answer : (D) e = n/(1 - n)

The porosity of a soil sample having its void ratio equal unity would be (a) 33.33% (b) 50.0% (c) 66.66% (d) 75.0%

Description : The porosity of a soil sample having its void ratio equal unity would be (a) 33.33% (b) 50.0% (c) 66.66% (d) 75.0%

Last Answer : (b) 50.0%

State the procedure for the determination of water content by oven-drying method.

Description : State the procedure for the determination of water content by oven-drying method.

Last Answer : i) This is commonly adopted and simplest method for determination of water content of a soil sample in the laboratory. ii) The method basically consists of drying a weighed moist sample of soil in an oven ... The above table gives the minimum quantity of soil sample to be taken for test.  

State any four methods to find water content of soil sample.

Description : State any four methods to find water content of soil sample. 

Last Answer : The direct determination of moisture content can be made by a) Oven drying b) Infrared c) Sand bath method. The indirect method are a) Calcium carbide b) Penetration resistance (proctor needle) c) Nuclear d) Pycnometer 

If voids ratio is 0.67, water content is 0.188 and specific gravity is 2.68, the degree of saturation of the soil, is (A) 25 % (B) 40 % (C) 60 % (D) 75 %

Description : If voids ratio is 0.67, water content is 0.188 and specific gravity is 2.68, the degree of saturation of the soil, is (A) 25 % (B) 40 % (C) 60 % (D) 75 %

Last Answer : Answer: Option D

Explain California bearing Ratio Test with neat sketch to determine % CBR of given soil sample.

Description : Explain California bearing Ratio Test with neat sketch to determine % CBR of given soil sample.

Last Answer : Procedure of California Bearing Ratio Test: 1. Take a given soil; sample and add water equal to OMC of soil to prepare wet mix soil. 2. Take the CBR mould of 150 mm diameter and 175 mm height. Keep it ... Bearing Ratio of given soil as  % CBR = (Test load / Standard load ) X 100.

Define Soil Stabilization. State any three points of necessary of soil stabilization.

Description : Define Soil Stabilization. State any three points of necessary of soil stabilization.

Last Answer : Define: - Soil Stabilization is defined as improving the engineering performance of soil by artificial means. Necessity of Soil Stabilization : - 1. To increase the shear strength of soil. 2. To reduce ... of structures. 6. To increase the density of soil. 7. To reduce permeability of soil.

Define outcrop and fold of rock.

Description : Define outcrop and fold of rock. 

Last Answer : i) Out crop: The dip and strike of beds can be easily measured in the field from their exposures called outcrops  ii) Fold: Folds may be defined as undulations or bends that are developed in the rock ... To which these rock have been subjected to, from time to time in the past history of the Earth.

Define outcrop and strike

Description : Define outcrop and strike

Last Answer : i) Out crop: The dip and strike of beds can be easily measured in the field from their exposures called outcrops ii) Strike: The horizontal distance perpendicular to the fault plane is called as strike.

Define compaction and state purpose of compaction.

Description : Define compaction and state purpose of compaction.

Last Answer : Define Compaction : Instant compression of soil under dynamic load is called compaction Purpose of compaction : 1. To increase density and thereby shear strength and bearing capacity of soil, this is ... of earth dam. 5.To increase resistance towards erossion of soil by rain and other causes.

Define ultimate bearing capacity and safe bearing capacity.

Description : Define ultimate bearing capacity and safe bearing capacity.

Last Answer : Ultimate bearing capacity (qu): It is the gross pressure at the base of the foundation at which the soil fails in shear is called as ultimate bearing capacity. Safe bearing capacity (qs) : It ... capacity is also referred to as the ultimate bearing capacity qu divided by factor of safety F.

Define shear strength of soil and state field situations of shear failure.

Description : Define shear strength of soil and state field situations of shear failure. 

Last Answer : Shear Strength of Soil: Shear strength is a term used in soil mechanics to describe the magnitude of the shear stress that a soil can sustain. . Field situations where shear failure occurs 1) ... wall, especially surcharge 3)Under foundation along planes of maximum shear 4) Sub grades of road.

Define Flow Net and state its characteristic

Description : Define Flow Net and state its characteristic

Last Answer : Flow Net: - The grid, mesh or net formed by intersection of equipotential line and flow a line is called as flow net. Characteristic of Flow Net: - i) In a flow net, flow lines ... approximately squares. v) The flow net is representative of the flow pattern and dissipation of the hydraulic head.

Define folds and draw neat sketch of a fold and label its different parts.

Description : Define folds and draw neat sketch of a fold and label its different parts. 

Last Answer : Fold: Folds may be defined as undulations or bends that are developed in the rock of the Earth’s crust, as a result of stresses (commonly lateral compression) To which these rocks have been subjected to, from time to time in the past history of the Earth.

Define minerals and state any six properties of minerals.

Description : Define minerals and state any six properties of minerals.

Last Answer : Minerals have distinguishing physical properties that in most cases can be use to determine the identity of the mineral. Among the various properties crystal, habit, cleavage, hardness, density, luster, ... of water) Colour: color is sometimes an extremely diagnostic property of mineral

Define earthquake and intensity.

Description : Define earthquake and intensity.

Last Answer : i. Earthquake: It is define as vibrations induced in the earth's crust due to internal or external causes that virtually shake up a part of the crust and all the structures and living and ... of the actual shaking at the location during an earthquake and is assigned as Roman Capital Numerical.

Define joints and state their classification.

Description : Define joints and state their classification.

Last Answer : Joints: joint are defined as a fracture in rock where there has been no lateral movement in the plane of the fracture (up, down or sideway) of one side relative to the other. Classification of joints ... , iii) Oblique joints. c) Origin i) Tension joints, ii) Shear joints, iii) Compression joints

Define outcrop and faults.

Description : Define outcrop and faults.

Last Answer : i) Out crop: The dip and strike of beds can be easily measured in the field from their exposures called outcrops.  ii) Fault: The fractures along which there has been relative movement ... process of development of fractures and displacement of the blocks against each other is termed as faulting.

Define geology and state its branches.

Description : Define geology and state its branches.

Last Answer : Geology: Geology is the science of study of the solid matter that constitutes the Earth. Encompassing such things as rocks, soil, gemstones, geology studies, the composition, structure, physical properties ... geology ix. Applied geology x. Hydrology xi. Indian geology xii. photo-geology

Define permeability and coefficient of permeability

Description : Define permeability and coefficient of permeability 

Last Answer : Definition i) Permeability (k) It is defined as the properly of soli which permits the seepage of fluid through interconnecting voids under gravity OR Permeability (k) It is defined as the speed at which ... is represented as K = v/i  Where v = discharge velocity in m/s i = hydraulic gradient

Define plasticity index and classify soil on its basis.

Description : Define plasticity index and classify soil on its basis.

Last Answer : a) Plasticity index (Ip) It is give measure of degree of plasticity of soil. It is difference be liquid limit and plastic limit Ip = WL - Wp Greater plasticity index, the greater is degree of plasticity of the soil. ... based on Ip i) Non plastic soil  If wp = o        Ip = wL ii) Plastic soil

Define fault and state its classification

Description : Define fault and state its classification

Last Answer : Fault: The fractures along which there has been relative movement of the blocks past each other. The entire process of development of fractures and displacement of the blocks against each other is termed as ... by a movement of the disrupted blocks along a medical poit called the hinge point.  

Define petrology and rock

Description : Define petrology and rock

Last Answer : a. Petrology: Formation of various types of rocks, their mode of occurrence, composition, texture and structures, geological and geographical distribution on the earth are all studied uner petrology. It ... of one mineral i.e. monomineralic or it may consist of different minerals i.e. polymineralic

State the types of consistency limit and define any one

Description : State the types of consistency limit and define any one

Last Answer : Types of consistency limit 1.Liquid limit 2.Plastic limit 3.Shrinkage limit Liquid limit- It is minimum water content at which two separated grooved soil parts mixed together under 25 blows of ... in volume of soil due to further decrease in water content : is termed as shrinkage limit.

Define outcrop, Dip , Strike and fold of Rocks.

Description : Define outcrop, Dip , Strike and fold of Rocks.

Last Answer : 1.Outcrop -The exposure of solid rock on the earth surface is known as outcrop.  2.Dip - It is the inclination of bedding plane of rock with horizontal is called as Dip.  3.Strike - ... the bends or curvatures in rock formed due to action of compressive forces on horizontal layers called as fold.

Define Liquid limit, Plastic Limit, Shrinkage limit and Plasticity index.

Description : Define Liquid limit, Plastic Limit, Shrinkage limit and Plasticity index.

Last Answer : Liquid limit (WL) - It is minimum water content at which two separated grooved soil parts mixed together under 25 blows of casagrande's liquid limit apparatus; is called as liquid limit. Plastic limit (Wp ... difference between the liquid limit (WL) and plastic limit (Wp). IP = WL - Wp

Define safe bearing capacity and allowable bearing pressure.

Description : Define safe bearing capacity and allowable bearing pressure. 

Last Answer : Safe bearing capacity (qs): It is the maximum pressure which the soil can carry without risk of shear failure is called as safe bearing capacity.  OR Sometimes the safe bearing capacity is ... in shear nor there is excessive settlement of structure, is called as Allowable bearing pressure.

Define permeability and Phreatic Line

Description : Define permeability and Phreatic Line

Last Answer : Permeability  “It is defined as the properly of soli which permits the seepage of fluid through interconnecting voids under gravity  Phreatic Line: The topmost seepage line in an earthen dam at which hydrostatic pressure is zero, is called as Phreatic line.

Define dip and folds.

Description : Define dip and folds.

Last Answer : Dip – It is the inclination of bedding plane of rock with horizontal is called as Dip. Fold – It is the bends or curvatures in rock formed due to action of compressive forces on horizontal layers called as fold.

Define specific gravity of soil. Explain the stepwise procedure of determination of specific gravity of soil by pycnometer.

Description : Define specific gravity of soil. Explain the stepwise procedure of determination of specific gravity of soil by pycnometer. 

Last Answer : Specific Gravity: It is ratio of unit weight in air of a given volume of soil solids at a specific temperature to unit weight in air of an equal volume of distilled water at same temperature. ... Repeat all above steps two more times to calculate average specific gravity of given soil sample.