DPWH Materials Engineer Exam
ACTUAL QUESTIONS AND CORRECT
ANSWERS
The fine-grained soils in the field can be identified through the use of simple visual and
manual tests except
a. Water mobility
b. Dry strength
c. Plasticity
d. Dry weight - CORRECT ANSWERS✅✅
The minimum testing requirement for one quality test of concrete hollow block is ________
units for every 10,000 units.
a. 3
b. 6
c. 10
d. 12 - CORRECT ANSWERS✅✅
The most basic criterion that can be applied for rejection of asphalt mixture delivered to the
site is:
a. asphalt content
b. grading of mixture
c. temperature of mixture
d. all of the above - CORRECT ANSWERS✅✅
This is driven in order to determine the casting length of the piles.
a. test pile
,b. bored pile
c. sheet pile
d. batter pile - CORRECT ANSWERS✅✅
The aggregate component contributes internal friction to shear strength and stability of the
bituminous mixture. The desirable shape and surface texture of aggregate particles are:
a. round and smooth aggregate particles
b. angular and smooth aggregate particles
c. round and rough-textured particles
d. angular and rough-textured particles - CORRECT ANSWERS✅✅
Stone Mastic Asphalt shall be placed at a temperature not less than:
a. 135°C
b. 107°C
c. 115°C
d. 125°C - CORRECT ANSWERS✅✅
What is the plasticity index of the soil having a liquid limit of 40 and plastic limit of 10?
a. 50
b. 42
c. 6
d. 30 - CORRECT ANSWERS✅✅
In subbase construction, a trial section of about ________ sq. meters shall be made for every
type of material/equipment/procedure proposed for use.
a. 2000
b. 1500
, c. 1000
d. 500 - CORRECT ANSWERS✅✅
What is the allowable mass percent air voids of bituminous mixture for Item 310?
a. 6 to 10 percent
b. 3 to 5 percent
c. 2 to 6 percent
d. 5 to 8 percent - CORRECT ANSWERS✅✅
This is a test criterion for reinforced concrete pipe tested in a three-edge bearing test.
a. 0.3 mm crack
b. 0.4 mm crack
c. 0.5 mm crack
d. 0.6 mm crack - CORRECT ANSWERS✅✅
What should be done on the subbase course with existing moisture content of 10% higher
than the optimum moisture of the AASHTO T180 Method D?
a. Spread to the required loose thickness and compact
b. Add water, spread to the required loose thickness and compact
c. Dry out to reduce moisture, spread to the required loose thickness and compact
d. Spread to the required loose thickness - CORRECT ANSWERS✅✅
The proper and accurate measurement of all the materials used in the production of concrete
to ensure uniformity of proportions and aggregate grading is called:
a. quality control
b. batching
c. pumping
ACTUAL QUESTIONS AND CORRECT
ANSWERS
The fine-grained soils in the field can be identified through the use of simple visual and
manual tests except
a. Water mobility
b. Dry strength
c. Plasticity
d. Dry weight - CORRECT ANSWERS✅✅
The minimum testing requirement for one quality test of concrete hollow block is ________
units for every 10,000 units.
a. 3
b. 6
c. 10
d. 12 - CORRECT ANSWERS✅✅
The most basic criterion that can be applied for rejection of asphalt mixture delivered to the
site is:
a. asphalt content
b. grading of mixture
c. temperature of mixture
d. all of the above - CORRECT ANSWERS✅✅
This is driven in order to determine the casting length of the piles.
a. test pile
,b. bored pile
c. sheet pile
d. batter pile - CORRECT ANSWERS✅✅
The aggregate component contributes internal friction to shear strength and stability of the
bituminous mixture. The desirable shape and surface texture of aggregate particles are:
a. round and smooth aggregate particles
b. angular and smooth aggregate particles
c. round and rough-textured particles
d. angular and rough-textured particles - CORRECT ANSWERS✅✅
Stone Mastic Asphalt shall be placed at a temperature not less than:
a. 135°C
b. 107°C
c. 115°C
d. 125°C - CORRECT ANSWERS✅✅
What is the plasticity index of the soil having a liquid limit of 40 and plastic limit of 10?
a. 50
b. 42
c. 6
d. 30 - CORRECT ANSWERS✅✅
In subbase construction, a trial section of about ________ sq. meters shall be made for every
type of material/equipment/procedure proposed for use.
a. 2000
b. 1500
, c. 1000
d. 500 - CORRECT ANSWERS✅✅
What is the allowable mass percent air voids of bituminous mixture for Item 310?
a. 6 to 10 percent
b. 3 to 5 percent
c. 2 to 6 percent
d. 5 to 8 percent - CORRECT ANSWERS✅✅
This is a test criterion for reinforced concrete pipe tested in a three-edge bearing test.
a. 0.3 mm crack
b. 0.4 mm crack
c. 0.5 mm crack
d. 0.6 mm crack - CORRECT ANSWERS✅✅
What should be done on the subbase course with existing moisture content of 10% higher
than the optimum moisture of the AASHTO T180 Method D?
a. Spread to the required loose thickness and compact
b. Add water, spread to the required loose thickness and compact
c. Dry out to reduce moisture, spread to the required loose thickness and compact
d. Spread to the required loose thickness - CORRECT ANSWERS✅✅
The proper and accurate measurement of all the materials used in the production of concrete
to ensure uniformity of proportions and aggregate grading is called:
a. quality control
b. batching
c. pumping
