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GEO LAB > PRELIM > Flashcards

PRELIM Flashcards

1
Q

Lab 1 title

A

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

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2
Q

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

A

Moisture Content

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3
Q

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

A

-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.

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4
Q

List of apparatus in Lab 1

A
  1. Digital Weighing Device
  2. Drying Oven
  3. Pans
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5
Q

Moisture content formula

A

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

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6
Q

Lab 3 title

A

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

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7
Q

Lab 2 title

A

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

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8
Q

Commonly known as specific gravity

A

Relative density

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9
Q

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

A

Relative Density or Specific Gravity

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10
Q

What can specific gravity tell us

A

If the object will sink or float in our reference substance

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11
Q

Density of water

A

1g/mL or 1g/cm^3

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12
Q

Why do you have to be knowledgeable about specific gravity?

A

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

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13
Q

List of apparatus in Lab 2

A
  1. Digital Weighing Device
  2. Drying Oven
  3. Pans
  4. Volume Flask
  5. Squeeze Bottle
  6. Thermometer
  7. Funnel
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14
Q

Specific Gravity formula of the soil sample

A

Gs = Mo / Mo + (Ma - Mb)

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15
Q

Corrected value for Gs formula

A

Gs20 = GsK

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16
Q

What is Mo

A

Mass of dry soil

17
Q

What is Ma

A

Mass of flask filled with water

18
Q

What is Mb

A

Mass of flask filled with soil and water

19
Q

What is K

A

Temperature correction factor

20
Q

It is limited to particles above the sieve No. 200

A

Mechanical sieving

21
Q

Why is sieve test analysis very essential

A

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

22
Q

List of apparatus in Lab 3

A
  1. Stack of sieve
  2. Mechanical Sieve Shaker
  3. Digital Weighing Devices
  4. Drying Oven
23
Q

Mass of retained soil formula

A

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

24
Q

Mass of soil passing formula

A

Total mass retained - cummulative mass retained

25
Q

Percent passing formula

A

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

26
Q

Percent Retained

A

(mass retained / total mass retained) x 100

27
Q

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

A

Digital Weighing Device

28
Q

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

A

Drying oven

29
Q

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

A

Pans

30
Q

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

A

Digital Weighing Device

31
Q

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

A

Volume Flask

32
Q

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

A

Squeeze bottle

33
Q

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

A

Thermometer

34
Q

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

A

Funnel

35
Q

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)

A

Stack of Sieve

36
Q

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

A

Mechanical Sieve Shaker

GEO LAB (2 decks)

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