Topic 3

TOPIC 3

Basic Characteristics of Soil​

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​Part 1

Multiple Choice

What is components of soil?

• Solid, water and air

• Soild, water and organic

• Sedimentary, water and residual

Multiple Choice

V_a refers to ___

• Volume of water

• Volume of void

• Volume of air

Multiple Choice

M_W refers to ____.

• Mass of solid

• Mass of water

• Volume of water

Multiple Choice

V_v refers to ____

• V_a + V_s

• V_v + V_s

• V_a + V_w

• V_w + V_s

Multiple Choice

V_s = V_T - V_v

It is True or False?

• True

• False

Multiple Choice

If M_s = 47.8 g, M_T = 58.3 g, calculate M_w.

• M_w = 10.5 g

• M_w = 106.1 g

• M_w = 0.219

Multiple Choice

Formula bulk density ( $$\rho_b$$ ) is ____

• $$\frac{M_s}{V_T}$$  

• $$\frac{M_T}{V_T}$$  

• $$\frac{M_w}{V_T}$$  

Multiple Choice

Formula moisture content is ____

• $$\frac{M_w}{M_s}$$  

• $$\frac{M_s}{M_T}$$  

• $$\frac{M_T}{V_T}$$  

Multiple Choice

Formula porosity is ____

• $$\frac{V_v}{V_s}$$  

• $$\frac{V_v}{V_T}$$  

• $$\frac{V_a}{V_V}$$  

Multiple Choice

What is density of water?

• 1000kg/m³

• 1kg/m³

• 1000g/ml

Multiple Choice

What is unit weight of water?

• 9.81 kN/m³

• 9.18 N/m²

• 9.81 N/m²

• 9.18 kN/m³

Multiple Choice

Unit weight of water soil is expressed by ___

• $$\rho_w$$  

• $$\rho_b$$  

• $$\gamma_w$$  

• $$\gamma_d$$  

Multiple Choice

What is value of S_r if the soil is fully saturated?

• S_r = 1

• S_r = 0

Multiple Choice

What is value of S_r if the soil is fully dried?

• S_r = 1

• S_r = 0

​Quiz part 2

Multiple Choice

Particles that ranging from 0.075mm to 100mm can be distributed using the _____

• hydrometer test

• sieve size analysis

Multiple Choice

Particles smaller than 0.075mm can be distributed using the _____

• hydrometer test

• sieve size analysis

Multiple Choice

The sieve analysis can distributing the soil sample in retained and passing part.

• True

• False

Multiple Choice

Sand size is between ______

• 0.002 mm to

  0.075 mm

• 0.075 mm to

  4.75 mm

Multiple Choice

Silt size is between ______

• 0.002 mm to

  0.075mm

• 0.075mm to

  4.75 mm

Multiple Choice

To plot the grain-size distribution of soil sample, x-axis refers to _____ and y-axis refers to _____.

• moisture content,

  percentage of soil passing

• sieve size,

  percentage of soil retained

• sieve size,

  percentage of soil passing

Multiple Choice

D₆₀ refers to ______

• diameters of particle size correspond to the percent finer of 10%

• diameters of particle size correspond to the percent finer of 30%

• diameters of particle size correspond to the percent finer of 60%

Multiple Choice

C_C refers to ______

• Coefficient of gradation

• Coefficient of uniformity

Multiple Choice

Sand is considered as well-graded if C_U is ____ and C_C is ____.

• >6,

  1 to 3

• >4,

  1 to 3

Multiple Choice

Gravel is considered as well-graded if C_U is ____ and C_C is ____.

• >6,

  1 to 3

• >4,

  1 to 3

Multiple Choice

Well-graded gravel is expressed as _____

• GP

• GW

• GS

• GC

Multiple Choice

Poorly-graded sand is expressed as _____

• SC

• SW

• SM

• SP

Multiple Choice

The water content at which the soils change from one state to other is known as ____

• Atterberg Limit

• Terzaghi Limit

• Casagrande Limit

Multiple Choice

The state of a fine-grained soil at which the soil will flow on its own weight.

It is the state of ___

• liquid state

• plastic state

• semi-solid state

Multiple Choice

The method to determining liquid limit is ___

• Casagrande and

  Cone Penetrometer Method

• Compaction and

  Sieve analysis

• Direct shear test and

  Unconfined compression test

Multiple Choice

According to the graph, what the method it is?

• Casagrande method

• Cone penetrometer method

• Sieve analysis

Multiple Choice

What is the value of PI if LL= 55% and PL = 30%.

• 25%

• 20%

• 35%

Multiple Choice

For Atterberg limit, how to determined the types of soil?

• Using plasticity chart

• using slope stability chart

• using colors chart

Multiple Choice

If the PI = 27% and LL = 40%, what type of soil based on Plasticity Chart

• CL

• CH

• ML

Multiple Choice

If the PI = 10% and LL = 25%, what type of soil based on Plasticity Chart?

• CL+ML

• CL

• ML, OH

Multiple Choice

If the PI = 25% and LL = 60%, what type of soil based on Plasticity Chart?

• MH

• CH

• ML

Multiple Choice

If the PI = 40% and LL = 55%, what type of soil based on Plasticity Chart?

• CH

• CL

• MH

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