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GEOTECHNICAL ENGG 1MODULE

Total questions: 55

Worksheet time: 28mins

Name
Class
Date
1.

The Unit weight of water is

a)

1000 kN/ m3

b)

1 g/cm3

c)

9.81

g/cm3

d)

9810

kg/m3

2.

A Partially saturated soil is called _______ phase system

a)

1

b)

2

c)

3

d)

4

3.

Void ratio is denoted by ______

a)

G

b)

e

c)

n

d)

sr

4.

Porosity is expressed by ______

a)

e

b)

n

c)

G

d)

sr

5.

Density is ______

a)

weight /

volume

b)

mass /

volume

c)

density

/ volume

d)

wt

density / volume

6.

Specific gravity is ratio between wt of particle by wt of any

particle

a)

true

b)

false

7.

Colluvial soils are transported by ______

a)

water

b)

wind

c)

gravity

d)

ice

8.

What is soil?

a)

It is the loose material in which plants can grow in the upper layer of Earth.

b)

It is the leaf that grows on the plant.

c)

It is the food that can be found inside the seed.

9.

True or False: Soil takes very little time to form.

a)

True

b)

False

10.
What is soil?
a)
A mixture of minerals
b)
A mixture of water, minerals, gases and organic matter
c)
A type of rock
d)
A type of bacteria
11.
What does weathering mean?
a)
To form or create new
b)
To build up
c)
To break down
d)
To completely destroy
12.
Which of the following best describes soil erosion?
a)
A.  the breakdown of soil 
b)
A.  the improvement of soil
c)
A.  the addition of soil
d)
A.  the movement of soil by wind or water
13.
Soil is made of
a)
weathered rocks and minerals
b)
dead plants and animals
c)
air and water
d)
all of the above
14.
The breaking down of rocks into smaller pieces.
a)
erosion
b)
weathering
c)
sediment
d)
sand
15.
The movement of weathered rock and soil
a)
weathering
b)
erosion
c)
sand
d)
silt
16.

Let G be the specific gravity of soil solids,w the water content in the soil sample,  γw\gamma_w   the unit weight of water, and  γd\gamma_d   the dry unit weight of soil. The equation for the zero air voids line

a)

γd\gamma_d  = Gγw1+Gw\frac{G\gamma_w}{1+Gw}  

b)

γd\gamma_d  = GγwGw\frac{G\gamma_w}{Gw}  

c)

γd\gamma_d  = Gw1+γw\frac{Gw}{1+\gamma_w}  

d)

γw\gamma_{w_{ }}  = gw1−γw\frac{gw}{1-\gamma_w}  

17.

water content of soil can be

a)

never be greater than 100%

b)

takes values from 0% to 100%

c)

be less than 0%

d)

be greater than 100%

18.

soil has a bulk unit weight of 22KN/, m3m^3  water content 10%. the dry density of soil is



(a)  

19.

Select the correct statement

a)

Unit weight of dry soil is greater than unit weight of wet soil

b)

For dry soils, dry unit weight is less than total unit weight

c)

Unit weight of soil increases due to submergence in water

d)

Unit weight of soil decreases due to submergence in water

20.

if the  VvV_v  is equal to  VsV_s  in a soil mass then the values of void ratio and porosity are

a)

1.0 and 0.0

b)

0.0 and 1.0

c)

0.5 and 1.0

d)

1.0 and 0.5

21.
Soil formation begins with the weathering of_______.
a)
Humas
b)
Subsoil
c)
Litter
d)
Rock
22.

Who is the father of Geotechnical Engineering

a)

Christian Otto Mohr

b)

Clausius Cleyperon

c)

John Smith

d)

Karl Von Terzaghi

23.

In sand replacement method, sand must:

a)

Pass through 1mm and retain on 300micron sieve

b)

Pass through 2.36mm and retain on 1mm sieve

c)

Pass through 1mm and retain on 600micron sieve

d)

Pass through 4.75mm and retain on 1mm sieve

24.

Volume of calibrating cylinder in Sand replacement method is:

a)

200cc

b)

500cc

c)

1000cc

d)

2000cc

25.

Which of the following is not an engineering property of soil?

a)

Compressibility

b)

Permeability

c)

Particle Size

d)

Shear Strength

26.

Identify the missing Sieve size : 2.36 mm, 1 mm, 600 micron,..........,212 micron, 150 micron, 75 micron

a)

300 micron

b)

400 micron

c)

425 micron

d)

450 micron

27.

In oven drying method for determination of water content, temperature maintained is:

a)

100-1050C

b)

150-1600C

c)

105-1100C

d)

110-1200C

28.

_________ apparatus is used to test liquid limit of a soil.

a)

Mohr

b)

Casagrande

c)

Otto

d)

Terzaghi

29.

The minimum water content at which the soil just begins to crumble when rolled into threads 3 mm in diameter, is known

a)

Liquid Limit

b)

Plastic Limit

c)

Shrinkage Limit

d)

Plasticity Index

30.

Water content is given by:

a)

Weight of water/mass of soil

b)

Mass of water/mass of solid

c)

Mass of water/mass of soil

d)

Mass of water/weight of solid

31.

Who is the father of Geotechnical Engineering?

a)

Christian Otto Mohr

b)

Clausius Cleyperon

c)

John Smith

d)

Karl Von Terzaghi

32.

In Geotechnical Engineering, soil is considered as a _________ phase material.

a)

3

b)

2

c)

1

d)

4

33.

Water content is given by:

a)

Weight of water/mass of soil

b)

Mass of water/mass of solid

c)

Mass of water/mass of soil

d)

Mass of water/weight of solid

34.

The mass density of water at 40C is:

a)

1000g/ml

b)

1kg/m3

c)

1000Mg/m3

d)

1000kg/m3

35.

In oven drying method for determination of water content, temperature maintained is:

a)

100-1050C

b)

150-1600C

c)

105-1100C

d)

110-1200C

36.

_________ apparatus is used to test liquid limit of a soil.

a)

Mohr

b)

Casagrande

c)

Otto

d)

Terzaghi

37.

The minimum water content at which the soil just begins to crumble when rolled into threads 3 mm in diameter, is known

a)

Liquid Limit

b)

Plastic Limit

c)

Shrinkage Limit

d)

Plasticity Index

38.

A partially saturated sample of soil has a unit weight of 2.0 g/cm3 and specific gravity of soil particles is 2.6. If the moisture content in the soil is 20%, the degree of saturation in % is

a)

20

b)

77

c)

92

d)

none of these

39.

Why consolidation are important engineering parameters in construction?

a)

To predict settlement

b)

To strengthen soil conditions

c)

To reduce cost of construction

d)

All above

40.

Identify the missing Sieve size : 2.36 mm, 1 mm, 600 micron,..........,212 micron, 150 micron, 75 micron

a)

300 micron

b)

400 micron

c)

425 micron

d)

450 micron

41.

The ratio of the volume of water to a volume of voids.

a)

Degree of Saturation

b)

Porosity

c)

unit weight

d)

Soil properties

42.

Weathering is

a)

rocks and types of soil.

b)

often produces infertile

soil.

c)

the breaking down or dissolving of rocks

and minerals on the surface of the Earth.

43.

________ effects the

characteristics of soil.

a)

Particle weight of soil

b)

Particle size of soil

c)

Particle dry size of soil

44.

This refers to a material

composed of a mass of small mineral particles which, in

association with certain quantities of water, exhibits the

property of plasticity.

a)

Clay

b)

Silt

c)

Loam

45.

3 processes of rock weathering

a)

mechanical weathering

biological weathering

chemical weathering

b)

mechanical weathering

physical weathering

chemical weathering

c)

hydraulic weathering

biological weathering

chemical weathering

46.

This is a clay mineral with chemical composition

Al2Si2O5(OH)4, also known as aluminium silicates.

a)

Montmorillonite

b)

Halloysite

c)

Kaolinite

47.

Gravel size ranges from:

a)

80.1 mm to 4.75 mm

b)

80mm to 4.65 mm

c)

80mm to 4.75 mm

48.

Soil particles ranging from 0.075 mm to 2

micron is known as

a)

Clay

b)

Silt

c)

Sand

49.

This is the ratio of the volume of voids to the total volume of the soil.

a)

Void ratio

b)

Porosity

c)

Degree of Saturation

50.

In oven drying method for determination of water content, temperature maintained is:

a)

100-1050C

b)

150-1600C

c)

105-1100C

d)

110-1200C

51.

A partially saturated sample of soil has a unit weight of 2.0 g/cm3 and specific gravity of soil particles is 2.6. If the moisture content in the soil is 20%, the degree of saturation in % is

a)

20

b)

77

c)

92

d)

none of these

52.

The ratio of the volume of water to a volume of voids.

a)

Degree of Saturation

b)

Porosity

c)

unit weight

d)

Soil properties

53.

Gravel size ranges from:

a)

80.1 mm to 4.75 mm

b)

80mm to 4.65 mm

c)

80mm to 4.75 mm

54.

Soil particles ranging from 0.075 mm to 2

micron is known as

a)

Clay

b)

Silt

c)

Sand

55.

This is the ratio of the volume of voids to the total volume of the soil.

a)

Void ratio

b)

Porosity

c)

Degree of Saturation

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