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GEOTECHNICAL FORMULAS

Total questions: 95

Worksheet time: 48mins

Name
Class
Date
1.

I. Neglecting weight if air

II. Total weight of soil sample

III, weight of voids

IV. Volume of solids

a)

I and II

b)

II and III

c)

I, II, & III

d)

None

2.

Determine the soil composition formula.

a)

Porosity

b)

Void ratio

c)

Degree saturation

d)

Density of soil

3.
a)

Porosity

b)

Void ratio

c)

Neglecting weight of air (Wa=0)

d)

Density of soil

4.
a)

Porosity

b)

Neglecting weight of air (Wa=0)

c)

Void ratio

d)

Density of soil

5.
a)

Porosity

b)

Void ratio

c)

Density of soil

d)

Neglecting weight of air (Wa=0)

6.
a)

Degree of saturation (%)

b)

Void ratio

c)

Density of soil

d)

Porosity

7.
a)

Neglecting weight of air (Wa=0)

b)

Void ratio

c)

Density of soil

d)

Moisture content (%)

8.

I. Unit weight weight

II. Moist unit weight

III. Bulk unit weight

IV. Moisture content

V. Saturated density

a)

I and II

b)

I, II, III, & IV

c)

I, II, & III

d)

none

9.
a)

Dry unit weights

b)

Total weight of soil sample

c)

Void ratio

d)

Density of soil

10.
a)

Moist unit weight

b)

Dry unit weight

c)

Moisture content (%)

d)

Density of soil

11.
a)

Dry unit weight IF THE VOLUME OF SOLIDS IS 1

b)

Moisture content (%) IF THE VOLUME OF SOLIDS IS 2

c)

Dry unit weight IF THE VOLUME OF SOLIDS IS 2

d)

Air void ratio IF THE VOLUME OF SOLIDS IS 1

12.
a)

Degree of saturation (%)

b)

Void ratio of saturated soils (%)

c)

Moisture content (%)

d)

Specific gravity

13.

e=wGs

Therefore: e=wGs

a)

Void ratio of saturated soils

b)

Void ratio of unssaturated soils

c)

Void ratio of saturated solids

d)

Saturated unit weight of soil

14.

What is the degree of saturation for the void ration of saturated soils?

a)

100% | 1.0

b)

50% | 0.5

c)

100% | 0.1

d)

50% | 1.0

15.
a)

Saturated Unit weight of soil

b)

Void ratio of saturated soils

c)

Moist unit weight

d)

Moisture content (%)

16.

THIS formula is the DENSITY OF SOIL.

What are the values of Pw?

a)

1000 kg/m3

b)

1 g/cm3

c)

100 g/cm3

d)

100 kg/m3

17.

THIS formula is the SATURATED UNIT WEIGHT OF SOIL.

What are the values of Yw?

a)

9810 N/m3

b)

62.4 lb/ft3

c)

28.4 lb/ft3

d)

9801 N/m3

18.
a)

Dry density

b)

Void ratio of saturated soils

c)

Void ratio of saturated soils

d)

Saturated unit weight of soil

19.
a)

Saturated density

b)

Dry density

c)

Density of soil

d)

Void ratio of saturated soil

20.

I. EFFECTIVE UNIT WEIGHT OF SOILS

II. SUBMERGED UNIT WEIGHT

III. BOUYANT UNIT WEIGHT

IV. TOTAL WEIGHT OF SOIL SAMPLES

V. TOTAL WEIGHT OF SOLID SAMPLES

a)

I, II, & III

b)

II ONLY

c)

I ONLY

d)

ALL OF THE ABOVE

21.
a)

Air void ratio

b)

Void ratio of saturated soils (%)

c)

Degree of saturation (%)

d)

Moisture content (%)

22.
a)

Zero air void unit weight

b)

Void ratio of saturated soils (%)

c)

Degree of saturation (%)

d)

Total weight of soil sample

23.
a)

Moist unit weight in terms of degree of saturation & void ratio

b)

soil unit weight in terms of degree of saturation & density

c)

Moist unit volume in terms of degree of unsaturation & void ratio

24.
a)

e min

b)

e max

c)

y max

25.

a)

e max

b)

e min

c)

y max

26.
a)

Plasticity index

b)

Liquidity index

c)

Specific gravity

d)

Shrinkage ratio

27.
a)

Liquidity index

b)

Specific gravity

c)

Moisture content (%)

d)

Relative density or density index

28.

Characteristics of soil: LI < 0

a)

Brittle solid

b)

Brittle plastic

c)

Liquid

d)

gas

29.

Characteristics of soil: LI < 1

a)

Plastic

b)

Brittle soil

c)

water

d)

Liquid

30.

Characteristics of soil: LI > 1

a)

Liquid

b)

Solid

c)

gas

d)

plastic

31.
a)

Relative density

b)

Specific gravity

c)

Consistency index

d)

Shrinkage limit

32.
a)

Relative density or density index

b)

Moisture content (%)

c)

Specific gravity

d)

Liquidity index

33.
a)

Consistency index

b)

Relative density

c)

Specific gravity

d)

Shrinkage limit

34.
a)

Shrinkage limit

b)

Relative density

c)

Consistency index

d)

Specific gravity

35.

This is the SHRINKAGE LIMIT formula.

m1: Mass of wet soil

m2: mass of dry soil

V1: initial volume of wet soil

V2: Final volume of dry soil

Pw: 1g/cm3

a)

TRUE

b)

FALSE

36.
a)

Shrinkage ratio

b)

Shrinkage limit

c)

Relative density

d)

Consistency index

37.
a)

Specific gravity

b)

Specific gravity

c)

Consistency index

d)

Shrinkage limit

38.

In the RELATIVE DENSITY.

yd (max) is?

a)

Dry unit weight in the densest condition (at a void ratio of e min)

b)

Dry unit weight in the loosest condition (at a void ratio of e max)

c)

Wet unit weight in the densest condition (at a void ratio of e min)

d)

Dry unit ratio in the densest condition (at a void ratio of e max)

39.

In the RELATIVE DENSITY.

yd (min) is?

a)

Dry unit weight in the loosest condition (at a void ratio of e max)

b)

Dry unit ratio in the densest condition (at a void ratio of e max)

c)

Dry unit weight in the densest condition (at a void ratio of e min)

d)

Wet unit weight in the densest condition (at a void ratio of e min)

40.
a)

Dry unit weight in the densest condition (at a void ratio of e min)

b)

Dry unit ratio in the densest condition (at a void ratio of e max)

c)

Shrinkage limit

d)

Moist unit weight of compaction

41.
a)

Relative density

b)

Relative compaction

c)

Hydraulic gradient

d)

Discharge velocity

42.
a)

Dry weight of soil

b)

wet weight of soil

c)

Dry weight of solids

43.

In the Dry weight of soil formula,

W2 value is?

a)

Weight of the moist soil excavated from the hole.

b)

Moisture content

c)

Dry weight of soil

44.

In moist unit weight of compaction,

W value is

a)

weight of compacted soil in the mold

b)

weight of compacted soil in the water

c)

volume of compacted water in the mold

d)

volume of the mold

45.

In moist unit weight of compaction,

V (m) value is?

a)

Volume of the mold (1/30ft3)

b)

weight of voids

c)

Total weight of soil sample

d)

Neglecting weight if air

46.
a)

Dry unit weight

b)

Void ratio

c)

Porosity

d)

Density of soil

47.
a)

Dry unit weight for a given moisture content w and degree of saturations

b)

Zero air void unit weight

c)

void weight

d)

Void ratio of saturated soils (%)

48.
a)

Relative compaction

b)

Void ratio of saturated soils (%

c)

Degree of saturation (%)

d)

Moisture content (%)

49.

In the Dry weight of soil formula,

W3 value is?

a)

Dry weight of soil

b)

moisture content

50.

In the Dry weight of soil formula,

w value is?

a)

Moisture content

b)

Dry weight of soil

c)

Dry weight of sand

51.
a)

Dry unit weight of compaction made in the field:

b)

Void ratio of saturated soils

c)

wet unit weight of compaction made in the field:

52.
a)

Hydraulic gradient

b)

Hydraulic brakes

c)

Discharge velocity

d)

Flow rate

53.
a)

Discharge velocity

b)

Hydraulic gradient

c)

Flow rate

54.
a)

Flow rate

b)

Moisture content (%)

c)

Saturated Unit weight of soil

d)

Moist unit weight

55.

i stands for?

a)

Cross sectional area of soil

b)

Hydraulic gradient

c)

coefficient permeability

56.

A stands for

a)

Cross sectional area of soil

b)

Hydraulic gradient

c)

Hydraulic conductivity

57.
a)

Coefficient of leakage

b)

Hydraulic gradient

c)

Hydraulic conductivity

d)

Cross sectional area of soil

58.

K' stands for in coefficient of leakage

a)

coefficient of permeability of semipervious layer of thickness b'

b)

Equilibrium constant

c)

Potassium

d)

Kelvin

59.
a)

Constant head method

b)

Hydraulic conductivity

c)

Hydraulic gradient

d)

Cross sectional area of soil

60.

In the Constant head method, Q stands for?

a)

Volume of water collected

b)

area of X sectional of soil

c)

Duration of water collection

d)

Hydraulic gradient

61.

In the Constant head method, A stands for?

a)

Volume of water collected

b)

area of X sectional of soil

c)

Duration of water collection

d)

Hydraulic gradient

62.

In the Constant head method, t stands for?

a)

Volume of water collected

b)

area of X sectional of soil

c)

Duration of water collection

d)

Hydraulic gradient

63.

In the Constant head method, i stands for?

a)

Volume of water collected

b)

area of X sectional of soil

c)

Duration of water collection

d)

Hydraulic gradient

64.
a)

Falling head test

b)

Constant head method

c)

retardation coefficient

65.

In the Falling head test, A stands for?

a)

Area of specimen

b)

Area of the stand pipe

c)

Length of specimen

d)

Time

66.

In the Falling head test, A stands for?

a)

Area of specimen

b)

Area of the stand pipe

c)

Length of specimen

d)

Time

67.

In the Falling head test, a stands for?

a)

Area of specimen

b)

Area of the stand pipe

c)

Length of specimen

d)

Time

68.

In the Falling head test, A stands for?

a)

Area of specimen

b)

Area of the stand pipe

c)

Length of specimen

d)

Time

69.

In the Falling head test, L stands for?

a)

Area of specimen

b)

Area of the stand pipe

c)

Length of specimen

d)

Time

70.

In the Falling head test, t stands for?

a)

Area of specimen

b)

Area of the stand pipe

c)

Length of specimen

d)

Time

71.

In the Falling head test, q stands for?

a)

Area of specimen

b)

Area of the stand pipe

c)

Length of specimen

d)

Flow rate/discharge

72.

In the Falling head test, h1 &h2 stands for?

a)

Area of specimen

b)

Initial & final heights of water before and after the test

c)

Length of specimen

d)

Flow rate/discharge

73.

Falling head test ito, love.

a)

.

b)

.

c)

Falling head test

d)

.

74.

Standard temperature of water is?

a)

20oC

b)

25oC

c)

293.15 K

d)

100F

75.
a)

Retardation coefficient

b)

Falling head test

c)

Constant head method

76.

In the retardation coefficient, k stands for?

a)

Coefficient of permeability of aquifer of thickness "b"

b)

Potassium

c)

Kelvin

d)

Okay

77.

What is this love ko?

a)

Equivalent horizontal hydraulic conductivity

b)

Equivalent vertical hydraulic conductivity

c)

Moist content

78.
a)

Equivalent vertical hydraulic conductivity

b)

Equivalent horizontal hydraulic conductivity

79.

Well in an unconfined permeable layer underlain by an impermeable stratum

a)

Permeability test by pumping from wells

b)

retardation test by pumping from lakes

c)

Permeability test through blood brain barrier

80.

If water Temperature correction for hydraulic conductivity: If the temp is not 20C

This correction factor must be multiplied to the K obtained from the tests

a)

Ito click mo love **

b)

I

c)

love

d)

You

81.
a)

Well in a confined aquifier underlain by an impermeable stratum

b)

Hydraulic brakes

c)

Moisture content (%) IF THE VOLUME OF SOLIDS IS 2

d)

Hydraulic brakes

82.
a)

Well in a confined aquifier underlain by an impermeable stratum

b)

Hydraulic brakes

c)

Moisture content (%) IF THE VOLUME OF SOLIDS IS 2

d)

Hydraulic brakes

83.
a)

Transmissivity of aquifer in a pumping test

b)

Falling head test

c)

retardation coefficient

d)

Constant head method

84.

In Transmissivity of aquifer in a pumping test, T stands for?

a)

Transmissivity

b)

Temperature

c)

The farthest distance from the center of test well

d)

The nearest dostance of observation well from the test well

85.

In Transmissivity of aquifer in a pumping test, r1 stands for?

a)

Transmissivity

b)

Temperature

c)

The farthest distance from the center of test well

d)

The nearest dostance of observation well from the test well

86.

In Transmissivity of aquifer in a pumping test, r2 stands for?

a)

Transmissivity

b)

Temperature

c)

The farthest distance from the center of test well

d)

The nearest distance of observation well from the test well

87.

In Transmissivity of aquifer in a pumping test, r2 stands for?

a)

Transmissivity

b)

Temperature

c)

The farthest distance from the center of test well

d)

The nearest distance of observation well from the test well

88.

In Transmissivity of aquifer in a pumping test, z1 stands for?

a)

draw down of the nearest observation well

b)

draw down of the farthest observation well

c)

The farthest distance from the center of test well

d)

rate of discharge

89.

In Transmissivity of aquifer in a pumping test, z2 stands for?

a)

draw down of the nearest observation well

b)

draw down of the farthest observation well

c)

The farthest distance from the center of test well

d)

rate of discharge

90.

In Transmissivity of aquifer in a pumping test, Q stands for?

a)

draw down of the nearest observation well

b)

draw down of the farthest observation well

c)

The farthest distance from the center of test well

d)

rate of discharge

91.

Equivalent hydraulic conductivity in stratified soil

a)

Equivalent horizontal conductivity

b)

Equivalent vertical conductivity

92.

Equivalent hydraulic conductivity in stratified soil

a)

Equivalent vertical conductivity

b)

Equivalent horizontal conductivity

93.
a)

Relative compaction

b)

I love you

c)

Future Engineer

d)

Chacha Ko <3

94.
a)

Seepage velocity or interstitial velocity

b)

Moist ciontent

c)

Retardation coefficient

95.

In the relative density, yd stands for?

a)

in-situ dry unit weight

b)

Shrinkage limit

c)

consistency index

d)

liqudity index

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