Consistency Of Soil

Question 1

Rupture resistance is best described using

Answer 1

Stickiness and Plasticity

Question 2

Describe the strength with which soil materials are held together

Answer 2

Consistency of soil

Question 3

The ability of soil materials to change shape(but not volume), continuous under the influence of a constant pressure and to retain the impressed shape when the pressure is removed

Answer 3

Plasticity

Question 4

Soil begins to stick to fingers but comes off one or the other cleanly; does not stretch when the fingers are opened

Answer 4

Slighty sticky

Question 5

The ability of soil materials to adhere to other objects

Answer 5

Stickiness

Question 6

Field test for stickiness

Answer 6

Non sticky
Slightly sticky
Sticky
Very sticky

Question 7

The field measure of the ability of the soil to withstand pressure as applied using the thumb and forefinger

Answer 7

Rupture resistance

Question 8

Separates inorganic clays from inorganic slits

Answer 8

A-line

Question 9

When describing rupture resistance, we attempt to describe it using

Answer 9

Moist, Dry, and wet consistency

Question 10

The resistance of soils to deformation and rupture

Answer 10

Consistency of soil

Question 12

Water is added to soil to increase water content

Answer 12

Wet consistency

Question 12

Soil sticks to both thumb and forefinger and tends to stretch a little and pull apart rather than pulling free from your finger

Answer 12

Sticky

Question 13

Shrinkage limit, Plastic limit, and Liquid Limit are also known as

Answer 13

Atterberg limits

Question 15

Atterberg limits were oberved by

Answer 15

Albert Mauritz Atterberg

Question 16

Consistency can be described as

Answer 16

Dry, moist, and wet consistency

Question 17

Atterberg limits were refined by

Answer 17

Arthur Casagrande

Question 18

Soil sticks firmly to both thumb and forefinger and stretches when the fingers are opened

Answer 18

Very Sticky

Question 19

Liquid Index ( LI)

Answer 19

LI = (w- PL) / ( LL-PL)

= (w-PL) / PI

Question 20

The degree to which a reworked soil can be permanently deformed without rupturing

Answer 20

Plasticity of solids

Question 22

Can undergo deformation without cracking

Answer 22

Plastic soil

Question 23

No soil or practically no soil sticks to fingers

Answer 23

Non-sticky

Question 23

Describes as the response of soil to physical change through (increasing) moisture content

Answer 23

Plasticity

Question 24

Are basically the limits of water content used to define soil behavoir

Answer 24

Atterberg limits

Question 25

Moisture content at which soil begins to behave as liquid material and begins to flow

Answer 25

Liquid limit

Question 26

Moisture content at which soil begins to behave as plastic material

Answer 26

Plastic limit

Question 27

Moisture content at which no futher volume change occurs further reduction in moisture content

Answer 27

Shrinkage limit

Question 28

What lab apparatus is used to test liquid limit

Answer 28

Casagrande cup

Question 29

After how many blows to reach the liquid limit

Answer 29

25

Question 30

Specific Gravity

Answer 30

Gs = 1 / [( 1/SR) - (SL/100)]

Question 31

The slope of the flow rate

Answer 31

Flow index

Question 32

Flow index is equal to

Answer 32

FI = (w1 - w2) / log (N2/N1)

Question 33

Another method to obtain the liquid limit

Answer 33

Fall cone test method

Question 34

Is the moisture content at which the soil, when rolled into threads of 3.2mm (1/8 inch),crumbles

Answer 34

Plastic limit

Question 35

PI =

Answer 35

PI = LL - PL

Question 36

Indicates how much volume change is possible as changes above water content above the shrinkage limit occur

Answer 36

Shrinkage ratio

Question 37

Is the moisture content of which the volume change of the soil mass ceases( or the volume no longer goes smaller)

Answer 37

Shrinkage limit

Question 39

Is the upper limit of the relationship of the PI to the LL for any soil found so far

Answer 39

U-line

Question 40

Is an index for identifying the swelling potential of clay soils

Answer 40

``` A = PI / u u = percent finer ```

Question 41

Formula for change in moisture content

Answer 41

Change in moisture = density ( V1- V2) / m2

Question 41

Shrinkage limit formula

Answer 41

SL = [(m1 -m2) / m2] -[(V1-V2)/ m2 ] density

Question 42

Is themeasure of plasticity of the soil

Answer 42

Plasticity index

Question 43

Provides the relative consistency of a cohesive soil with respect to the atterberg limits

Answer 43

Liquid Index ( LI )

Question 43

Shrinkage ratio ( SR)

Answer 43

SR = density of dry / density of water

Question 44

Commonly used to indicate the in situ denseness and loosenessof soil

Answer 44

Relative Density (Sr)

Question 45

Relative Density is equal to

Answer 45

Dr = (emax -e) / (emax - emin)

Question 46

Very loose, Dr is equal to

Answer 46

0-15

Question 47

Loose, Dr is equal to

Answer 47

15-50

Question 48

Medium, Dr is equal to

Answer 48

50-70

Question 49

Dense, Dr is equal to

Answer 49

70-85

Question 50

Very Dense, Dr is equal to

Answer 50

85-100