ME 2023 REVIEWER

What is the cement-ratio by weight shall be proportioned for a 6-cube batch of mortar of fine aggregate sample?

0.5

2.75

3.2

1.5

A 2250 kg/m3 wet unit weight and 6.5% average actual moisture content were obtained from a laboratory data during the conduct of FDT on an aggregate base course materials, what is the dry unit weight of the soil?

2103

1993

2113

1983

What is the minimum distance between reinforcing steel bars?

40mm

35mm

25mm

45mm

How many grams of soil sample shall be taken on the ball shape plastic mass of soil during the conduct of plastic limits test?

What is the maximum water cement ratio for Class A concrete?

0.58

0.55

0.49

0.53

In the determination of specific gravity test of coarse aggregates, how many hours the sample of aggregates be immersed in water at room temperature?

15 to 19 hrs

10 to 24 hrs

17 to 22 hrs

12 to 16 hrs

As per specifications, what is the spacing of Reflectorized Thermoplastic Rubble strips?

50 - 100 mm

150 - 200 mm

250 -500 mm

200 - 500 mm

The dividing sieve between course and fine aggregates used in concreting in sieve No.:

No. 4

No. 8

No. 16

No. 10

What is the concrete class used for Item 515 - Mechanically -Stabilized Earth (MSE) Retaining Walls?

Class A

Class B

Class C

Class D

How many grams of soil sample for moisture content determination shall be taken on the compacted material from the mold during moisture density relation test?

300 min

500 min

300 max

500 max

Given: Asphalt content of bituminous mix=5.5%

weight of specimen in air=1200 grams

weight of specimen in water= 700 grams

weight of specimen in SSD= 1205 grams

calculate the bulk specific gravity of the asphalt specimen.

1.576

1.721

2.376

This is the rate of dilution for each laver for Item 206. (September 2019)

1:3 to 1:6

1:3 to 1:9

1:5 to 1:9

1:5 to 1:7

The ratio of the weight/mass of water in the soil to the weight/mass of the dry soil after it has been dried to a constant weight/mass is:

Hygroscopic moisture

Moisture content

Plastic limit

Liquid limit

The minimum weight of sample in grams for moisture content determination of soil sample is:

100

Depends on the max grain size

During a moisture relation test of soil materials, a 4.5 kg rammer was used. What is the required height of drop of the rammer?

457mm

380mm

305mm

250mm

In soil classification of test, how many kilos of sample to be submitted to the laboratory for testing?

5kg

50kg

10kg

20kg

How high above the ground should the chevron signs be installed in rural areas?

1.50 m

2.50 m

2.20 m

2.50 m

In a liquid limit test of soil, what sample of soil shall be taken?

Passing 0.425mm sieve

Passing 4.75mm sieve

Passing 0.075mm sieve

Passing 2.0mm sieve

The solvent used in extraction of bitumen

Gasoline

Water

Diesel Oil

Kerosene

What is tensile strength of Rubber Water Stops?

17MPa

15MPa

10MPa

9.6MPa

What is the Class if the stones are weighing from 60kg to 100kg?

Class A

Class B

Class C

Class D

What is minimum penetration of all piles for Bridge Construction?

10m

What is the ph Value of water allowed in concrete mix?

4.0 to 8.0

4.0 to 8.5

5.5 to 8.5

4.5 to 8.5

How much water in millimeters is to be initially added on the test sample during the preparation of soil sample for a liquid limit test?

10 to 20

15 to 20

10 to 15

15 to 25

The molded specimen of soil materials for CBR test shall be soaked in water at?

36hrs

96hrs

60hrs

48hrs

What reagent and how many percent shall be added on the sample of sand in the determination of organic impurities of fine aggregates?

2% of magnesium sulphate solution

2% of potassium iodide solution

3% of sodium hydroxide solution

3% of sodium sulphate solution

What is the required diameter in millimeters shall be observed prior to breaking of the thread of soil in the plastic limit test?

2.2

3.2

1.5

4.2

In a bituminous mix, there are three (3) kinds of aggregates. What kind of aggregate passes Sieve No. 200?

Mineral filler

Fine

Admixture

Coarse

It is a single test procedure to determine the suitability of an asphalt concrete mix

Marshall Stability

Penetration

Extraction

Immersion Compression

Soil classification is determined by

Atterberg Limit Test and Sieve analysis test

Sieve analysis test

Atterberg limit test

Hydrometer test

The upper limit of grain sizes used for determining the Atterberg limits soils is:

No. 10 sieve

No. 100 sieve

No. 40 sieve

No. 200 sieve

Penetration test for asphalt cement is a measure of

Ductility

Solubility

Consistency

Fluidity

What is the specification range for asphalt content in a bituminous concrete mix for surface paving?

4to 8 percent of the total dry aggregates mass weight

3.5 to 7.5 percent of the total dry aggregates mass weight

4 to 10 percent of the total dry aggregates mass weight

5 to 8 percent of the total dry aggregates mass weight

What is the curing temperature of a concrete sample?

16 to 27°C

10 to 15°C

18 to 24°C

15 to 18°C

The mortar proportion of stone masonry shall be:

One part cement, 1 part sand

One part cement, 4 parts sand

One part cement, 3 parts sand

One part cement, 2 parts sand

How can you determine the size of your deformed steel bars?

All of the choices

By getting the weight of one meter bar

By the use of a caliper

By the use of tape measure

Embankment materials are classified as unsuitable materials if

The plasticity index is 60

The natural density is 1200 klogram per cubic meter

The natural moisture content is 50%

The liquid limit is 40%

If concrete is continuously moist-cured, it will gain strength beyond 180 days.

True

It depends on the curing temperature

False

It depends on the cement used

The penetration test is an indication of the _______ of asphalt.

Softness

Flash point

Hardness

Consistency

What is the function of emulsifiers in liquid asphalt?

To retain water in asphalt for longer periods

To enable asphalt and water to mix

To increase mixing ability with aggregates

To prevent asphalt from hardening

In a design mix, the specific gravity of Portland cement must be:

3.10

3.05

6.10

3.15

The frequency of sampling and testing for compacting subbase material is:

1 per 500 cum

1 per 300 cum

1 per 2,500 cum

1 per 1,500 cum

ME 2023 REVIEWER

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