PRELIM

Question 1

Lab 1 title

Answer 1

Standard test method for laboratory determination of water (moisture) content of soil and rock by mass - ASTM D 2216

Question 2

Percent by mass of water in a sample of a mixture of form of matter

Answer 2

Moisture Content

Question 3

Why is it necessary to determine the water or moisture content of the given soil?

Answer 3

-to know if the soil is appropriate or suitable for a specific purpose

-used for determining other physical properties of soil like weight, density, specific gravity etc.

Question 4

List of apparatus in Lab 1

Answer 4

1. Digital Weighing Device
2. Drying Oven
3. Pans

Question 5

Moisture content formula

Answer 5

w = ( Mass of Water / Mass of Dry Soil ) x 100

Question 6

Lab 3 title

Answer 6

Standard test method for particle size distribution (graduation) using sieve analysis - ASTM D 6913

Question 7

Lab 2 title

Answer 7

Standard test of specific gravity of the soil - ASTM D 854

Question 8

Commonly known as specific gravity

Answer 8

Relative density

Question 9

Is the ratio of the density of the substance to the density of a standard substance under specified conditions

Answer 9

Relative Density or Specific Gravity

Question 10

What can specific gravity tell us

Answer 10

If the object will sink or float in our reference substance

Question 11

Density of water

Answer 11

1g/mL or 1g/cm^3

Question 12

Why do you have to be knowledgeable about specific gravity?

Answer 12

for it is needed in the calculations for other soil properties like void ratio, degree of saturation etc

Question 13

List of apparatus in Lab 2

Answer 13

1. Digital Weighing Device
2. Drying Oven
3. Pans
4. Volume Flask
5. Squeeze Bottle
6. Thermometer
7. Funnel

Question 14

Specific Gravity formula of the soil sample

Answer 14

Gs = Mo / Mo + (Ma - Mb)

Question 15

Corrected value for Gs formula

Answer 15

Gs20 = GsK

Question 16

What is Mo

Answer 16

Mass of dry soil

Question 17

What is Ma

Answer 17

Mass of flask filled with water

Question 18

What is Mb

Answer 18

Mass of flask filled with soil and water

Question 19

What is K

Answer 19

Temperature correction factor

Question 20

It is limited to particles above the sieve No. 200

Answer 20

Mechanical sieving

Question 21

Why is sieve test analysis very essential

Answer 21

it can be basis on how to proportion the components or materials needed after knowing the characteristics of the soil sample

Question 22

List of apparatus in Lab 3

Answer 22

1. Stack of sieve
2. Mechanical Sieve Shaker
3. Digital Weighing Devices
4. Drying Oven

Question 23

Mass of retained soil formula

Answer 23

(mass of sieve + mass of retained soil) - (mass of sieve)

Question 24

Mass of soil passing formula

Answer 24

Total mass retained - cummulative mass retained

Question 25

Percent passing formula

Answer 25

(mass of soil passing / total mass retained) x 100

Question 26

Percent Retained

Answer 26

(mass retained / total mass retained) x 100

Question 27

an equipment used to measure or balance the weight of an object or specimen depending on the pull of gravity

Answer 27

Digital Weighing Device

Question 28

an equipment used to heat materials used in the laboratory such as sand and soil to eliminate the water or moisture content

Answer 28

Drying oven

Question 29

a container usually made of stainless steel, used to contain specimen like soil sample

Answer 29

Pans

Question 30

an equipment used to measure or balance the weight of an object or specimen with a capacity of 6000g

Answer 30

Digital Weighing Device

Question 31

a special flask characterized with a bulb-shaped body with a long and narrow neck. It is more precise in measuring volume of liquids

Answer 31

Volume Flask

Question 32

a type of container such as a bottle for dispensing a fluid, which is powered by squeezing the container by exerting pressure with the user's hand

Answer 32

Squeeze bottle

Question 33

an instrument for measuring temperature, especially one having a graduated glass tube with a bulb containing a liquid, typically mercury or colored alcohol, that expands and rises in the tube as the temperature increases

Answer 33

Thermometer

Question 34

a tool which guides the channel flow of substance to a smell opening in order to avoid spillage

Answer 34

Funnel

Question 35

a utensil consisting of a wire or plastics mesh held in a frame, used for separating coarser from finer particles (sieve no. 3/8, 4, 10, 16, 40, 100, and 200)

Answer 35

Stack of Sieve

Question 36

a machine designed to hold and agitate a stack of sieves for the purpose of separating a soil or other granular materials samples into its component particles by size

Answer 36

Mechanical Sieve Shaker