Materials 3

1. An experience field material engineer can easily identify whether the soil sample is plastic without the aid of laboratory equipment.

By air drying

By heating

Sample of moist soil molded and rolled into thin threads without breaking or crumbling

By soaking into the water

2. The purpose of trial sections before subbase/base construction is started

To check the suitability of the materials

To check the efficiency of the equipment used

Construction method which is proposed to be used

All of the above

3. Which one do you like?

Option 1

Option 2

Option 3

Option 4

4. The layer used in the pavement system between the subgrade and the base course

Embankment foundation

Embankment

Surfacing

Subbase

5. Asphaltic materials use for treating an existing bituminous materials or cement concrete surface with bituminous materials

Prime coat

Tack coat

Seal coat

Any of the above

6. Most eefective factor for strength of concrete

Water-cement ratio

Water, cement and fine aggregates

Cement plus water

Any of the above

7. In a certain soil the LL=30 and PL=45. The plasticity index

15

-15

75

Non plastic

8. The moisture content when the groove is closed by ___ blows of the cup is defined as the liquid limit

20

25

30

35

9. In road construction the excavated materials was 705,900 cu.m and the waste was 505,600 cu.m. How many grading compaction plasticity test are required.

134

150

140

146

10. The control of the temperature during mixing and compaction is of great significance.

The strength of the resulting pavement

The amount of the asphalt cement content

The amount of aggregate content

Proper determination of the method of rolling

11. Calibration of universal testing machine shall be done.

Once in a year

Every 6 months

Every 4 months

Once a month

12. Reduction of voids due to air being forced out of the soil pores

Consolidation

Compaction

Permeability

Capillarity

13. In laboratory compaction test, the wet density is 2049 kg/cu.m, the percent water content is 4.2%. The dry density will be

2048

1966

1942

1950

14. Location of boring on the new proposed road shall be taken

Along the proposed centerline

Along the side of road

Both a and b

None of the above

15. You are an experience material engineer of your firm. During compaction you found out that soil is too wet. What economical recommendation will you give

Reject the soil

Remove and replace the soil

Continuos compaction

Scarify and dry the soil by exposing it to air under suitable conditions

16. All test for determination of consistency limits of soil are on the fraction of soil passing the ___ sieve.

#30

#40

#20

#8

17. The weight of air-dried soil is 200 gms. The weight of mass of oven dried soil is 175 gms. Therefore, the hydroscopic moisture will be

14.29%

15.0%

14.50%

15.50%

18. Maximum water-cement ratio for concrete class A

0.46

0.53

0.55

0.58

19. Piles shall be used only in places where the minimum penetration of __ in firm material can be obtained

4 m

5 m

3 m

4.5 m

20. The design thickness for PCCP is 200mm. The average thickness determination was taken and the result is 170mm. If you are a government materials engineer, what percent of contract price adjustment will you recommend?

70%

No payment

80%

85%

21. You are the materials engineer of your firm. It so happen that in the preparation of the as-staked plans it was found out that there was an increase and new additional items of work from the original control program as submitted. What will you recommend?

Maintain the old submitted quality control program

Revised the quality control program

Delete the increase and the new additional item

Any of the above

22. After final rolling, the degree of compaction should be checked. The compated pavement shall have a density.

Equal to, or greater than 95% of the laboratory compacted density

Equal to, or greater than 97% of the laboratory compacted density

Equal to, or greater than 96% of the laboratory compacted density

Equal to, or greater than 94% of the laboratory compacted density

23. Maximum depth of exploration below subgrade level on road construction for areas of light cut and fill where there are no special problem

2 m

2.5 m

1.5 m

1.6 m

24. Unsuitable materilas, material other that suitable material such as

Highly organic soil such as peat and muck

Soil with a natural water content exceeding 100%

Soil with a very low density, 800 kg/cu.m or lower

All of the above

25. Not included in liquid limit determination

Balance, sensitive to 0.1gm

Liquid limit device

Extruder

Oven with temperature control

26. Moisture content determination of soil, gives the following result. weight of containers plus weight soil =120gms, weight of container =70gms, wieght of container plus dry soil = 108 gms. The moisture content will be;

30.20%

31.58%

31.70%

31.90%

27. You are the material engineer of a certain company doing an earth road construction. During the progress of construction highly organic soils was encountered. What will you recommend to your firm

Blend the highly organic soil with the granular materials

Removed an indirect placed with more stable materials

Covered highly organic soils with boulders

Placed several logs on the highly organic soils

28. No. of set of concrete cylinder sample taken for every 75 cu.m of concrete

1 set

2 set

Any of a and b

3 set

29. Required weight of sample for testing for fine aggregates use for concreting

70 kg

50 kg

30 kg

40 kg

30. If there is a strength deficiency in the concrete specimens and it is not feasible or not advisable to obtain cores from the structure due to structural considerations, as a material engineer, what will you recommend?

Send letter to your superior for his decision

Recommend immediately adjusted price of payment with respect to the deficiency incurred

Both a and b

Tolerate strength deficiency

31. In determining the grade of steel use

Tensile strength

Yield strength

Shear strength

Bond

32. Thickness determination of concrete cores shall be done at

4 measurements

9 measurements

6 measurements

8 measurements

33. Atleast one group of three in-situ density tests shall be carried out for each __ of each layer of compacted fill.

300 sq.m

450 sq.m

330 sq.m

500 sq.m

34. The moisture content of subbase/base material shall be adjusted prior to compaction by

Watering with approved sprinkle mounted on trucks

Drying out in order to obtain the required compactions

Either a or b

Removal and replacing another material

35. What is the estimated diameter of the soil thread when rolled between the palm of the hand and the glass plate begin to crumble in the plastic limit determination.

1/4"

1/8"

1/2"

3/16"

36. The concrete admixtures used when the normal setting time is shortened by the higher temperature, preventing the formation of cold joint, reduce the incidence of thermal cracking and to maintain concrete workability during large pours or long ready-mix hauls.

Accelerators

Retarders

Superplasticizers

Air entraining admixtures

37. The layer used in a pavement system to reinforce and protect the subgrade or subbase

Basement soil

Embankment foundation

Embankment

Base

38. Tolerance of thickness layer for base course

+-10

+-20

+-15

+-25

39. Percent compaction of ordinary condition soil

90%

95%

85%

100%

40. Required no. of representative core taken from each member of area in-place that is considered deficit

3

2

1

4

41. Number of hours of concrete cylinder sample to be submitted to the laboratory before testing

24 hrs

48 hrs

12 hrs

72 hrs

42. Most specifications for concrete exposed to weathering require that water-cement ratio

0.46

0.55

0.53

0.58

43. Maximum plasticity index for base course

8

6

7

5

44. In CBR determination the corrected load at o.2 inch penetration result is 1,255 psi. The percent CBR will be

83.67%

81.50%

83.20%

82.50%

45. Item 200 liquid limit of special fill common materials

Not exceeding 25

Not exceeding 35

Not exceeding 30

Not exceeding 20

46. Liquid limit is either

Greater than plastic limit

Equal to the plastic limit

Lesser to the plastic limit

All of the above

47. Physical properties of soil that gives an indication of clay contents

Lquid limit

Plasticity index

Shrinkage limit

Plastic limit

48. In the construction of a 380 linear meter asphalt road, with a designed thickness of 5 cm, a width requirement of 3.05 m and a programmed quantity of bituminous mix of 135 tonnes, an asphalt core was taken after each full days operation. Result of thickness and density tests are as follows:Paving date Paving length (m) Thickness (cm) Density (gm/cu.m)Day 1 120 5.3 2.262Day 2 140 5.1 2.311Day 3 120 5.0 2.221

135 tonnes

134.85 tonnes

136 tonnes

134.58 tonnes

49. Number of hours of immersion/compression test that the sample place in water

4 hrs

6 hrs

7 hrs

8 hrs

50. The process of producing a fill, subgrade, road base or road surface which is capable of withstanding the existing traffic under all weather and moisture conditions.

Soil stabilization

Use of admixtures

Both a and b

None of the above

51. The binder material for granular materials usually consist of the following except

Clay

Silt clay

Limestone dust

Slags

52. As an experience field material engineer, without the aid of laboratory equipment, it happens that your sample is hard, what practical method will you used in determining whether your sample is soil or rock.

By pulverizing with a hammer

By submerging into the water

By cheaping

By visualizing

53. Maximum slump for concrete class A

2"-5"

2"-4"

1"-2"

4"-9"

54. Soil sieve will not give information

Size of grains

Size of distribution

Soil classification

Mass weight passing

55. In laboratory compaction test, dry density is 1940 kg/cu.m, the percent water content is 13.40%. The wet density will be

1966

2049

2200

2250

56. The significance test of soil, that will determine the potential straight of the soil

Grading

Soaked CBR

Plasticity

Abrasion loss

57. Minimum depth of borings for bridge project in bedrocks

2 m

3 m

1.5 m

2.5 m

58. The required area for the construction of control strip and determination of target density

550 sq.m

335 sq.m

400 sq.m

500 sq.m

59. The allowable tolerance permitted variation from design thickness of layer or aggregate base course

+-10

+-5

+-11

+-9mm

60. Plastic limit of unsuitable materials exceed

50%

55%

53%

54%

61. In-situ density test means

Compaction test

Job density test

Moisture density relation test

Compaction by vibration

62. Minimum size of class B for stone masonry

300mm

400mm

800mm

500mm

63. Initially when the water content is low, the soil is stiffed and difficult to compress. This leads to low densities. As the molding water increase, the soil becomes more workable resulting into higher compacted density because water act as ___.

A lubricant

A compactor

A compactive effort

A void reducer

64. Item 200 plasticity index of special fill common materials

Not exceeding 12

Not exceeding 6

Not exceeding 8

Not exceeding 4

65. The group index number is a measure of the relative supporting power of the subgrade and thus high number will require,

Leaser depth of the base and surface

Greater depth of base and surface

Lesser permeability

Lesser capularity

66. What will you recommend?

Reject

Recoring

Remove and replace

All of the above

67. The term clayey is applied to fine material having plasticity index of

10

11 or greater

9 or less

10 or less

68. Liquid limit unsuitable materials exceed

80%

60%

75%

55%

69. Concrete used for this reinforced sections, railings and for filler in steel grid floors.

Class A

Class P

Class B

Class C

70. Minimum required percent compaction for subbase course?

98%

95%

100%

96%

71. Roadway embankment in earth materials shall be placed in horizontal layer not exceeding ___, loose measurement and compacted as specified before next layer is placed.

150mm

200mm

300mm

250mm

72. Maximum thickness of any one layer in spreading and compacting base and subbase course

150 mm

200 mm

100 mm

300 mm

73. Tolerance of thickness layer for subbase course

+-10

+-20

+-15

+-25

74. The term "silty" is applied to fine materials having plasticity index of

10 or less

11 or more

12

13

75. Minimum of depth boring below the lowest part of foundation on building project

5 m

9 m

6 m

7 m

76. Minimum number of boring for building exceeding three storeys

4

5

10

8

77. Clay when removed from the borrow pits come out in the form of chunks. If you are the assigned material engineer in the field, what is the most suitable compacting equipment will you recommend?

Tandem roller

Vibratory roller

Pneumatic tired roller

Sheeps-foot roller

78. As an experience materials engineer, compacting 6" (15cm) thick layers of soil will require, how many passes.

10 to 20 passes

8-10 passes

15-20 passes

15-30 passes

79. If the soil is compacted with higher compactive effort, the curve will move up and to the left. This means that the

Optimum moisture will decrease and maximum dry density will increase

Optimum moisture will increase and maximum dry density will increase

The maximum dry density will decrease and the optimum moisture content will increase

The maximum dry density will decrease and the optimum moisture content will decrease

80. Required weight of sample for testing for coarse aggregates use for concreting

40 kg

50 kg

70 kg

80 kg

81. In applying load on the penetration piston in CBR determination, the rate of penetration is approximately

1.5 mm per minute

1.3 mm per minute

1.27 mm per minute

1.0 mm per minute

82. Plasticity index of selected borrow for topping

Not more than 12

Not more than 8

Not more than 6

Not more than 10

83. Minimum depth of boring on bridge project below the river bed in ordinary soil

10 m

20 m

15 m

25 m

84. Increment of loads applied in load test

Not to exceed 25% of proposed safe load

Not to exceed 20% of proposed safe load

Not to exceed 15% of proposed safe load

Not to exceed 10% of proposed safe load

85. 300 mm thickness of base and subbase course will be spread and computed into

One-layer

Two-layers

Two- or more layers

Three layers

86. Maximum size of special fill common material

2"

3"

1 1/2"

2 1/2"

87. The degree of compaction in the field can be verified by

Field density test

Job density test

Any of a and b

None of the above

88. Good compaction means, except

Subsequent settlement is minimized

Stability is increased

Resistance to water absorption is decreased

Change in moisture content is minimized

89. Angular coarse aggregate use for concrete mix will provide more.

Water content

Cement and water

Cement and fine aggregates

All of the above

90. In construction of control strips and determination of target density. The numbers of in-place density tests taken randomly selected sites within the control strip will be

20

18

15

25

91. In immersion/ compression test the ratio of wet to dry density of the mix

Stability

Index retained strength

Bulk specific gravity

Percent compaction

92. The deficiency in concrete specimen was found out to be 19.5 percent. What is the adjust percent of contract price allowed.

80%

60%

70%

50%

93. The following are the single visual and manual test used for the identification of fine grained soils in the field without the aid of laboratory equipment, except.

Dispersion

Water mobility

Plasticity

Grading

94. Minimum CBR required for base course

100

95

80

85

95. For determining the liquid limit, a special standard device is used. All dimensions of the device are fixed and the jarring is accomplished by turning the crank at the rate of ___ revolution/sec.

3

2

4

5

96. In soil subsurface and surface exploration for flood control design of foundation condition, a soil sample was taken for field and laboratory tests. The tests required for soil was taken except,

Gradation

Abrasions

Water content

Atterberg limits

97. Minimum weight of soil sample taken from boring in road construction for CBR test

100 kg

50 kg

15 kg

20 kg

98. All boring on soil survey along new route road to be constructed shall generally carried to depth of at least

1.5 m below the proposed grade line

1.0 m below the proposed grade line

2.0 m below the proposed grade line

2.5 m below the proposed grade line

99. Minimum number of borings for an active slide for flood control and drainage project

2

1

3

4

100. Soil sample obtained on boring for flood control and drainage project shall be tested for the following laboratory test except,

Atterberg limits

Natural water content

Sieve analysis

Moisture density relationship

Materials 3

1. An experience field material engineer can easily identify whether the soil sample is plastic without the aid of laboratory equipment.

2.

What first name or nickname would you like us to use?

2. The purpose of trial sections before subbase/base construction is started

3. Which one do you like?

4. The layer used in the pavement system between the subgrade and the base course

5. Asphaltic materials use for treating an existing bituminous materials or cement concrete surface with bituminous materials

6. Most eefective factor for strength of concrete

7. In a certain soil the LL=30 and PL=45. The plasticity index

8. The moisture content when the groove is closed by ___ blows of the cup is defined as the liquid limit

9. In road construction the excavated materials was 705,900 cu.m and the waste was 505,600 cu.m. How many grading compaction plasticity test are required.

10. The control of the temperature during mixing and compaction is of great significance.

11. Calibration of universal testing machine shall be done.

12. Reduction of voids due to air being forced out of the soil pores

13. In laboratory compaction test, the wet density is 2049 kg/cu.m, the percent water content is 4.2%. The dry density will be

14. Location of boring on the new proposed road shall be taken

15. You are an experience material engineer of your firm. During compaction you found out that soil is too wet. What economical recommendation will you give

16. All test for determination of consistency limits of soil are on the fraction of soil passing the ___ sieve.

17. The weight of air-dried soil is 200 gms. The weight of mass of oven dried soil is 175 gms. Therefore, the hydroscopic moisture will be

18. Maximum water-cement ratio for concrete class A

19. Piles shall be used only in places where the minimum penetration of __ in firm material can be obtained

20. The design thickness for PCCP is 200mm. The average thickness determination was taken and the result is 170mm. If you are a government materials engineer, what percent of contract price adjustment will you recommend?

21. You are the materials engineer of your firm. It so happen that in the preparation of the as-staked plans it was found out that there was an increase and new additional items of work from the original control program as submitted. What will you recommend?

22. After final rolling, the degree of compaction should be checked. The compated pavement shall have a density.

23. Maximum depth of exploration below subgrade level on road construction for areas of light cut and fill where there are no special problem

24. Unsuitable materilas, material other that suitable material such as

25. Not included in liquid limit determination

26. Moisture content determination of soil, gives the following result. weight of containers plus weight soil =120gms, weight of container =70gms, wieght of container plus dry soil = 108 gms. The moisture content will be;

27. You are the material engineer of a certain company doing an earth road construction. During the progress of construction highly organic soils was encountered. What will you recommend to your firm

28. No. of set of concrete cylinder sample taken for every 75 cu.m of concrete

29. Required weight of sample for testing for fine aggregates use for concreting

30. If there is a strength deficiency in the concrete specimens and it is not feasible or not advisable to obtain cores from the structure due to structural considerations, as a material engineer, what will you recommend?

31. In determining the grade of steel use

32. Thickness determination of concrete cores shall be done at

33. Atleast one group of three in-situ density tests shall be carried out for each __ of each layer of compacted fill.

34. The moisture content of subbase/base material shall be adjusted prior to compaction by

35. What is the estimated diameter of the soil thread when rolled between the palm of the hand and the glass plate begin to crumble in the plastic limit determination.

36. The concrete admixtures used when the normal setting time is shortened by the higher temperature, preventing the formation of cold joint, reduce the incidence of thermal cracking and to maintain concrete workability during large pours or long ready-mix hauls.

37. The layer used in a pavement system to reinforce and protect the subgrade or subbase

38. Tolerance of thickness layer for base course

39. Percent compaction of ordinary condition soil

40. Required no. of representative core taken from each member of area in-place that is considered deficit

41. Number of hours of concrete cylinder sample to be submitted to the laboratory before testing

42. Most specifications for concrete exposed to weathering require that water-cement ratio

43. Maximum plasticity index for base course

44. In CBR determination the corrected load at o.2 inch penetration result is 1,255 psi. The percent CBR will be

45. Item 200 liquid limit of special fill common materials

46. Liquid limit is either

47. Physical properties of soil that gives an indication of clay contents

49. Number of hours of immersion/compression test that the sample place in water

50. The process of producing a fill, subgrade, road base or road surface which is capable of withstanding the existing traffic under all weather and moisture conditions.

51. The binder material for granular materials usually consist of the following except

52. As an experience field material engineer, without the aid of laboratory equipment, it happens that your sample is hard, what practical method will you used in determining whether your sample is soil or rock.

53. Maximum slump for concrete class A

54. Soil sieve will not give information

55. In laboratory compaction test, dry density is 1940 kg/cu.m, the percent water content is 13.40%. The wet density will be

56. The significance test of soil, that will determine the potential straight of the soil

57. Minimum depth of borings for bridge project in bedrocks

58. The required area for the construction of control strip and determination of target density

59. The allowable tolerance permitted variation from design thickness of layer or aggregate base course

60. Plastic limit of unsuitable materials exceed

61. In-situ density test means

62. Minimum size of class B for stone masonry

63. Initially when the water content is low, the soil is stiffed and difficult to compress. This leads to low densities. As the molding water increase, the soil becomes more workable resulting into higher compacted density because water act as ___.

64. Item 200 plasticity index of special fill common materials

65. The group index number is a measure of the relative supporting power of the subgrade and thus high number will require,

66. What will you recommend?

67. The term clayey is applied to fine material having plasticity index of

68. Liquid limit unsuitable materials exceed

69. Concrete used for this reinforced sections, railings and for filler in steel grid floors.

70. Minimum required percent compaction for subbase course?

71. Roadway embankment in earth materials shall be placed in horizontal layer not exceeding ___, loose measurement and compacted as specified before next layer is placed.

72. Maximum thickness of any one layer in spreading and compacting base and subbase course

73. Tolerance of thickness layer for subbase course

74. The term "silty" is applied to fine materials having plasticity index of

75. Minimum of depth boring below the lowest part of foundation on building project

76. Minimum number of boring for building exceeding three storeys

77. Clay when removed from the borrow pits come out in the form of chunks. If you are the assigned material engineer in the field, what is the most suitable compacting equipment will you recommend?

78. As an experience materials engineer, compacting 6" (15cm) thick layers of soil will require, how many passes.