The maximum allowable percent phosphorous content of a deformed and plain billet steel bar is

0.06 %

0.006 %

0.6 %

Correct! Wrong!

The following are physical properties of asphalt except

Gradation

Temperature Susceptibility

Consistency

Cohesion

Correct! Wrong!

It is a document in the field that narrates the quality control activities and is mandated in memorandum circular no. 80 dated June 30, 1978.

logbook

blue book

monthly status of tests

Correct! Wrong!

The dimension of gabion sample for testing

1m. x 2m.

1m. x 1m.

1 ft. x 2ft.

Correct! Wrong!

The rate of loading in the determination of compressive strength of cylindrical concrete specimen is at a constant rate within the range of

30 to 50 psi/sec

10 to 50 psi/sec

20 to 50 psi/sec

Correct! Wrong!

In abrasion test, the abrasive charge shall consist of cast-iron spheres or steel spheres. Using grading A, how many are the number of spheres?

12

11

8

Correct! Wrong!

The quantity of joint filler (pre-molded) sample for testing

1 - 400 mm x 400 mm

1 - 400 cm x 400 cm

1 - 400 m x 400 m

Correct! Wrong!

In items 311 and 405, 1 - grading is performed

for every 75 cu.m. or fraction thereof

for every 300 cu.m.

none

Correct! Wrong!

The selvage wire of a mattress per specification has a minimum diameter of

3.4 mm

2.7 mm

2.2 mm

Correct! Wrong!

The total weight of sample in abrasion test using grading A, B, C, and D is

5000g

4500g

4800g

Correct! Wrong!

It is a chemical composition of asphalt that gives color and hardness

Oil

Resin

Maltene

Asphaltene

Correct! Wrong!

The minimum quantity of CHB samples for complete test

8 units

10 units

6 units

Correct! Wrong!

The curve in logarithmic scale where the 25th blow is projected in order to determine the liquid limit of the soil

Parabolic curve

Highway curve

Flow curve

Correct! Wrong!

The Materials Engineer must base his/her recommendation for the acceptance and rejection of construction materials on

Test results

Conscience

Visual inspection only

Correct! Wrong!

The calibration of the universal testing machine is conducted

Every semester

Once a year

Every quarter

Correct! Wrong!

In Marshal test, the specimens are tested for stability and flow at

60 degrees Celsius

70 degrees Celsius

50 degrees Celsius

Correct! Wrong!

The type of cement to be used in the DPWH infrastructure projects as indicated in the Blue Book

Pozzolan Cement

Portland Cement Type 1

Portland Cement Type II

Correct! Wrong!

It is prescribed in each project based on estimated quantities and specifies the kind and number of test or each item of work.

Minimum Testing requirement

Work schedule

Minimum number of work

Correct! Wrong!

Mass percent of wear of coarse aggregates for item 311 when tested by AASHTO T-96 is not greater than

40%

50%

45%

Correct! Wrong!

CQCA is submitted every

every week

every quarter

month

Correct! Wrong!

The specific gravity of asphalt cement ranges from

0.99 - 1.0

1.1 - 1.2

1.01 - 1.04

Correct! Wrong!

The minimum quantity of conrete cylinder samples for testing

one cylinder

one set of three cylinders

one set of 4 cylinders

Correct! Wrong!

It is dynamic test usewd in the field to obtain rapid empirical results which can be used to estimate shear strength and bearing capacity

Load test

California Bearing Ratio Test

Standard Penetration Test

Correct! Wrong!

Which of the following is not a property of aggregates for bituminous mix composition?

Strength

Absorption and Specific Gravity

Particle Shape

Penetration

Correct! Wrong!

The minimum test for paint is

Mill certificate

1-sample for every 50 cans or fraction thereof

1-sample for every 100 cans or fraction thereof

Correct! Wrong!

Which of the following is a physical test of asphalt?

Triaxial Test

Field Density Test

Ductility Test

Rebound Test

Correct! Wrong!

In the field density test conducted in embankment, result showed that the computed dry unit weight was 1,650 kg/cu.m.. Laboratory compaction data showed that maximum dry density was 1,721 kg./cu.m. and the optimum moisture content was 12%. What is the degree of compaction?

96%

96.8%

94%

% compaction = (DD/MDD)

Show hint

Correct! Wrong!

The minimum tensile strength of grade 40 steel bar per specification is 483 Mpa. What is the minimum yield strength?

276 Mpa

376 Mpa

476 Mpa

Correct! Wrong!

The minimum flexural strength requirement of beam sample when tested by third-point loading method.

3.5 Mpa

4.0 Mpa

3.8 Mpa

Correct! Wrong!

The type of sample to be tested for structural steel/sheet

Square

Circular

Reduced section as prescribed

Correct! Wrong!

The ratio of weight/mass of water in the soil to the weight/mass of dry soil after it has been dried to constant weight/mass temperature of 100 degrees +/- 5 degrees Celsius

Moisture content

Water specific gravity

Water density

Correct! Wrong!

The temperature in standard curing of concrete sample is

20 +/- 1.7 degrees Celsius

23 +/- 1.7 degrees Celsius

25 +/- 1.7 degrees Celsius

Correct! Wrong!

How many sets of beam samples are taken for every 75 cu.m. of concrete poured

three sets

two sets

one set

Correct! Wrong!

It is a test required prior to final payment of Portland Cement Concrete Pavement and Asphalt Pavements

Coring test for thickness determination

Compression test

Rebound hammer test

Correct! Wrong!

If the coarse aggregate is subjected to five cycles of sodium sulfate soundness test, the weighted loss shall not exceed

10 mass percent

12 mass percent

15 mass percent

Correct! Wrong!

VMA means

Voids in Material Aggregates

Voids in Mineral Air

Voids in Mineral Aggregates

Correct! Wrong!

The significance of laboratory compaction test is to

Determine the load bearing capacity of soil

Determine the bearing capacity of soil

Determine the maximum dry density and optimum moisture content

Correct! Wrong!

The minimum volume of curing compound for testing

1 gallon

1 drum

1 li.

Correct! Wrong!

If the fine aggregates is subjected to five cycles of sodium sulfate soundness test, the weighted loss shall not exceed

10 mass percent

3 mass percent

5 mass percent

Correct! Wrong!

Asphalt cement, liquid asphalt and blown asphalt are

Natural asphalt

Manufactured asphalt

Mix asphalt

Correct! Wrong!

The minimum volume of water sample for analysis

500 ml

500 mm

500 li

Correct! Wrong!

The design of concrete mix specified by the Blue Book is based on

American Method

Area Method

Absolute Volume Method

Correct! Wrong!

There is 1-Q of cement in every

15,000 bags or fraction thereof

2,000 bags or fraction thereof

4,000 bags or fraction thereof

Correct! Wrong!

The average individual strength requirement of load bearing concrete masonry units is 5.5 Mpa (800 psi). What is its average strength requirement?

6.9 Mpa (1000 psi)

3.45 Mpa (500 psi)

5.5 Mpa (800 psi)

Correct! Wrong!

The maximum absorption content of CHB

250 Kg./cu.m.

230 Kg./cu.m.

240 Kg./cu.m.

Correct! Wrong!

The method in the determination of density of soil in-place

triaxial method

sand cone method

compaction method

Correct! Wrong!

The bending requirements of deformed reinforcing steel bar is

no cracking on the outside bent portion

no cracking on the inside bent portion

no cracking at 45 degrees

Correct! Wrong!

The percent of asphalt used in bituminous mix ranges from

4 - 8 %

6 - 8 %

5 - 8 %

3 - 8 %

Correct! Wrong!

In Bituminous mixture composition, percent of aggregates ranges from

90% - 95%

95% - 97%

92% - 95%

93% - 96%

Correct! Wrong!

The minimum test requirement for boulders

Inspection report

Grading

Abrasion Test

Correct! Wrong!

For pipe culverts and storm drains, the minimum test is 1 - pipe for every 50 pcs. What is the alternative requirement?

Inspection report is enough

Mill Certificate

1-set consisting of 3 concrete cylinders for not more than 25 pipes cast in the field and I - Inspection report for each size for not more than 25 cast in the field

Correct! Wrong!

Who is to recommend to the acceptance on rejection of construction materials intended for use in the project based on test results?

Materials Engineer of the Contractor

Project Engineer of the Contractor

Materials Engineer of DPWH

Correct! Wrong!

Cold mix asphalt is used on

Pothole patching

Additive

Paving

Correct! Wrong!

The minimum quantity of steel pipe (galvanized) samples for testing

2 pieces of 100mm long taken from both ends without thread

one-piece of 100mm long from one end with thread

2 pieces of 50mm long taken from both ends

Correct! Wrong!

Which of the following is not the work of the materials engineer.

To check the required equipment needed for the project

To ensure that samples are properly cured by standard procedures

To prepare design mixes for concrete and bituminous mixtures.

Correct! Wrong!

Laboratory compaction test of a soil is also known as

Moisture-density relation test

Triaxial test

Consolidation test

Correct! Wrong!

The allowable percent variation in mass of deformed reinforcing steel bar is

7.0 % max. under nominal mass

5.0 % max. under nominal mass

6.0 % max. under nominal mass

Correct! Wrong!

The minimum test requirement for water used in concrete for a questionable source is

1-Quality Test

P.E. Certificate

Inspection report

Correct! Wrong!

How do you compute for the plasticity index of the soil?

LL - PL

PL - LL

LL - GI

Correct! Wrong!

In a completed pavement, what are the minimum core samples required before payment is affected? (Assuming that the thickness is 23 cm)

5 holes/km/lane

P.E. Certificate

1 hole/500m

Correct! Wrong!

CQCA means

Certificate of Quality Control Aspect

Control of Quality Center Assurance

Certificate of Quality Control Assurance

Correct! Wrong!

The maximum moisture content of CHB

45%

40%

43%

Correct! Wrong!

The condition of soil sample to be tested in the laboratory compaction test is

Air-dried condition

Oven-dried condition

Wet condition

Correct! Wrong!

Determines the effect of water on the cohesion of the bituminous mixture

Marshall Test

Immersion - Compression Test

Extraction Test

Correct! Wrong!

The weight of hammer to be used in the laboratory compaction of soil for embankment is

4.64 kg

4.54 kg

4.0 kg

Correct! Wrong!

The test that determines the resistance of aggregates to its disintegration by saturated solutions of sodium sulfate or magnesium sulfate;

Autoclave

Soundness test

Abrasion test

Correct! Wrong!

How many group of 3 in situ densities are required if the compacted volume of embankment laid were estimated to be 1,500 cu.m. with a thickness of 0.20 m/layer?

10

20

15

Correct! Wrong!

One of the duties of the material engineer is to _______

Recommend to the project engineer remedial measures for the correction of satisfactory conditions of materials

Check the geometric control of the project

Prepare as-built plans

Correct! Wrong!

A control test in embankment construction to ensure adequate compaction

Field density test

Hydrometer test

Soundness test

Correct! Wrong!

The minimum quantity of cement for testing

1 sack

5 kg

10 kg

Correct! Wrong!

The quantity for soil aggregate for Moisture-Density Test

20 kg

50 kg

30 kg

Correct! Wrong!

Plasticty is an indication of percent

sand content

impurities content

clay content

Correct! Wrong!

Used in sealing undisturbed sample

Masking Tape

Asphalt

Wax

Correct! Wrong!

The length of wire (strand with strap) sample for testing

2 cm

2 meters

2 feet

Correct! Wrong!

Right after sampling, concrete cylindrical specimen samples shall be removed from its mold after

42 +/- 8 hrs

20 +/- 8 hrs

24 +/- 8 hrs

Correct! Wrong!

The requisite of transporting samples to the laboratory is

Well packed in durable containers to avoid damages in transit, accompanied by a sample card filled up in detail and duly signed by the Materials Engineer.

Well packed in durable containers to avoid damage while in transit.

Transported in any vehicle without cushions, accompanied by a sample card duly signed by anybody in the project.

Correct! Wrong!

What is the percent permissible error in the calibration of the universal testing machine/portable flexural/ compression machine?

+/- 0.5%

+/- 0.1%

+/- 1.0%

Correct! Wrong!

The liquid limit is expressed as the moisture content corresponding to

35 blows

25 blows

15 blows

Correct! Wrong!

The minimum quantity of sample for asphalt mix for a complete set

20 kg

10 kg

15 kg

Correct! Wrong!

The maximum size of item 200 - Aggregate Subbase Course

2 inches

1 inch

3 inches

Correct! Wrong!

The mineral filler which is used in the bituminous mix passes seive number

100

40

60

200

Correct! Wrong!

Which of the following is not a manufactured asphalt?

Rock Asphalt

Liquid Asphalt

Blown Asphalt

Asphalt Cement

Correct! Wrong!

A type of coring bit used in rock coring

Gold bit

Brass bit

Diamond bit

Correct! Wrong!

The type of electron present in rapid setting emulsified asphalt

Cationic

Anionic

Protons

Correct! Wrong!

There is 1-Q of steel bars required for every

20,000 kg or fraction thereof

10,000 kg or fraction thereof

15,000 kg or fraction thereof

Correct! Wrong!

SPT means

Sampling Procedure Time

Standard Penetration Time

Standard Penetration Test

Correct! Wrong!

The minimum number of core in asphalt pavement

1-core for every 100 meters

1-core for every km

none

Correct! Wrong!

The allowable air voids in compacted asphalt mix is

3%

5%

8%

Correct! Wrong!

Percentage of wear represents the value of

Abrasion loss

Absorption loss

Weight loss

Correct! Wrong!

The size of steel bar sample for testing

2 meters

1 meter

3 meters

Correct! Wrong!

Which of the following is a duty of a Materials Engineer?

To evaluate the work accomplishment of the contractor

To see that all laboratory equipment are protected from dust and other foreign matters that tend to destroy their sensitivity.

To supervise corrections of physical defects in the project

Correct! Wrong!

The selvage wire of a gabion per specification has a minimum diameter of

3.4 cm

3.4 mm

3.4 in

Correct! Wrong!

A tube sampler used in sampling undisturbed sample

Shelby tube

Piston tube

Split tube

Correct! Wrong!

The quantity of soil aggregate for classification test

10 kg

30 kg

20 kg

Correct! Wrong!

Which of the following items does not need a CBR?

Subbase material

Surfacing Material

base course material

Correct! Wrong!

The average minimum strength requirement of non-load bearing concrete masonry is 4.14 Mpa (600psi). What is its minimum individual strength requirement?

5.5 Mpa (800 psi)

6.9 Mpa (1000 psi)

3.45 Mpa (500 psi)

Correct! Wrong!

The maximum size of Item 300 - Aggregate Surface Course

1 1/2 inches

1 inch

2 inches

Correct! Wrong!

Embankment materials delivered at the job site was about 12,000 cu.m.. The minimum test requirement calls for 1-GPC, for every 1500 cu.m. What is the number of minimum test?

10 - G,P,C

6 - G,P,C

8 - G,P,C

Correct! Wrong!

The materials engineer of the contractor is directly under the supervision of the

Materials Engineer of the DPWH

Project Engineer of the Consultant

Project Engineer of the Contractor

Correct! Wrong!

A tube sampler used in sampling disturbed sample

Auger

Split Spoon Sampler

Shelby tube

Correct! Wrong!

Materials Engineer Mock Exam – CONSTRUIRE

Materials Engineer Quiz Number 1

Materials Engineer Quiz Number 1

The maximum allowable percent phosphorous content of a deformed and plain billet steel bar is

The following are physical properties of asphalt except

It is a document in the field that narrates the quality control activities and is mandated in memorandum circular no. 80 dated June 30, 1978.

The dimension of gabion sample for testing

The rate of loading in the determination of compressive strength of cylindrical concrete specimen is at a constant rate within the range of

In abrasion test, the abrasive charge shall consist of cast-iron spheres or steel spheres. Using grading A, how many are the number of spheres?

The quantity of joint filler (pre-molded) sample for testing

In items 311 and 405, 1 - grading is performed

The selvage wire of a mattress per specification has a minimum diameter of

The total weight of sample in abrasion test using grading A, B, C, and D is

It is a chemical composition of asphalt that gives color and hardness

The minimum quantity of CHB samples for complete test

The curve in logarithmic scale where the 25th blow is projected in order to determine the liquid limit of the soil

The Materials Engineer must base his/her recommendation for the acceptance and rejection of construction materials on

The calibration of the universal testing machine is conducted

In Marshal test, the specimens are tested for stability and flow at

The type of cement to be used in the DPWH infrastructure projects as indicated in the Blue Book

It is prescribed in each project based on estimated quantities and specifies the kind and number of test or each item of work.

Mass percent of wear of coarse aggregates for item 311 when tested by AASHTO T-96 is not greater than

CQCA is submitted every

The specific gravity of asphalt cement ranges from

The minimum quantity of conrete cylinder samples for testing

It is dynamic test usewd in the field to obtain rapid empirical results which can be used to estimate shear strength and bearing capacity

Which of the following is not a property of aggregates for bituminous mix composition?

The minimum test for paint is

Which of the following is a physical test of asphalt?

In the field density test conducted in embankment, result showed that the computed dry unit weight was 1,650 kg/cu.m.. Laboratory compaction data showed that maximum dry density was 1,721 kg./cu.m. and the optimum moisture content was 12%. What is the degree of compaction?

The minimum tensile strength of grade 40 steel bar per specification is 483 Mpa. What is the minimum yield strength?

The minimum flexural strength requirement of beam sample when tested by third-point loading method.

The type of sample to be tested for structural steel/sheet

The ratio of weight/mass of water in the soil to the weight/mass of dry soil after it has been dried to constant weight/mass temperature of 100 degrees +/- 5 degrees Celsius

The temperature in standard curing of concrete sample is

How many sets of beam samples are taken for every 75 cu.m. of concrete poured

It is a test required prior to final payment of Portland Cement Concrete Pavement and Asphalt Pavements

If the coarse aggregate is subjected to five cycles of sodium sulfate soundness test, the weighted loss shall not exceed

VMA means

The significance of laboratory compaction test is to

The minimum volume of curing compound for testing

If the fine aggregates is subjected to five cycles of sodium sulfate soundness test, the weighted loss shall not exceed

Asphalt cement, liquid asphalt and blown asphalt are

The minimum volume of water sample for analysis

The design of concrete mix specified by the Blue Book is based on

There is 1-Q of cement in every

The average individual strength requirement of load bearing concrete masonry units is 5.5 Mpa (800 psi). What is its average strength requirement?

The maximum absorption content of CHB

The method in the determination of density of soil in-place

The bending requirements of deformed reinforcing steel bar is

The percent of asphalt used in bituminous mix ranges from

In Bituminous mixture composition, percent of aggregates ranges from

The minimum test requirement for boulders

For pipe culverts and storm drains, the minimum test is 1 - pipe for every 50 pcs. What is the alternative requirement?

Who is to recommend to the acceptance on rejection of construction materials intended for use in the project based on test results?

Cold mix asphalt is used on

The minimum quantity of steel pipe (galvanized) samples for testing

Which of the following is not the work of the materials engineer.

Laboratory compaction test of a soil is also known as

The allowable percent variation in mass of deformed reinforcing steel bar is

The minimum test requirement for water used in concrete for a questionable source is

How do you compute for the plasticity index of the soil?

In a completed pavement, what are the minimum core samples required before payment is affected? (Assuming that the thickness is 23 cm)

CQCA means

The maximum moisture content of CHB

The condition of soil sample to be tested in the laboratory compaction test is

Determines the effect of water on the cohesion of the bituminous mixture

The weight of hammer to be used in the laboratory compaction of soil for embankment is

The test that determines the resistance of aggregates to its disintegration by saturated solutions of sodium sulfate or magnesium sulfate;

How many group of 3 in situ densities are required if the compacted volume of embankment laid were estimated to be 1,500 cu.m. with a thickness of 0.20 m/layer?

One of the duties of the material engineer is to _______

A control test in embankment construction to ensure adequate compaction

The minimum quantity of cement for testing

The quantity for soil aggregate for Moisture-Density Test

Plasticty is an indication of percent

Used in sealing undisturbed sample

The length of wire (strand with strap) sample for testing

Right after sampling, concrete cylindrical specimen samples shall be removed from its mold after

The requisite of transporting samples to the laboratory is

What is the percent permissible error in the calibration of the universal testing machine/portable flexural/ compression machine?