Asphalt Level I certification Exam Questions And
Answers Plus Rationales | Qs & Ans 2026 | Instant Pdf
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This exam covers basic knowledge of asphalt materials, sampling,
testing, quality control, safety, and relevant standards (ASTM,
AASHTO, NICET). Each question includes the correct answer and a
verified rationale.
Questions 1–50
1. What does the term “asphalt cement” refer to?
A) A mixture of asphalt and water
B) A refined, semisolid or liquid binder derived from crude oil used in
paving
C) A type of concrete
D) A cold mix patching material
Answer: B
Rationale: Asphalt cement is the refined binder that holds aggregates
together in hot mix asphalt (HMA).
,2. Which AASHTO standard covers sampling of hot mix asphalt
(HMA)?
A) AASHTO T 2
B) AASHTO T 168
C) AASHTO T 209
D) AASHTO T 283
Answer: B
Rationale: AASHTO T 168 is the standard method for sampling
bituminous paving mixtures.
3. The maximum temperature for compacting HMA specimens in
the laboratory is typically based on the viscosity of the asphalt
binder. Which viscosity range is targeted for compaction?
A) 50 ± 10 cP
B) 170 ± 20 cP
C) 280 ± 30 cP
D) 1000 ± 100 cP
Answer: C
Rationale: Compaction temperature is selected to achieve an asphalt
binder viscosity of 280 ± 30 cP (centipoise) for unaged binder.
,4. AASHTO T 209 (Rice test) measures:
A) The maximum specific gravity (Gmm) of loose HMA
B) The bulk specific gravity of compacted specimens
C) The asphalt content
D) The Marshall stability
Answer: A
Rationale: The Rice test determines the theoretical maximum specific
gravity (Gmm) of loose, uncompacted HMA, used to calculate air voids.
5. What is the purpose of AASHTO T 166?
A) Bulk specific gravity of compacted asphalt specimens (saturated
surface-dry method)
B) Asphalt content by ignition
C) Marshall stability
D) Extraction of asphalt
Answer: A
Rationale: AASHTO T 166 measures the bulk specific gravity (Gmb) of
compacted asphalt specimens using the saturated surface-dry (SSD)
method.
, 6. In the Marshall mix design method, stability is a measure of:
A) Resistance to plastic flow
B) Maximum load resistance at 60°C (140°F)
C) Air void content
D) Asphalt film thickness
Answer: B
Rationale: Marshall stability is the maximum load (in pounds or kN)
resisted by a compacted specimen at 60°C (140°F).
7. What does the flow value in the Marshall test represent?
A) Deformation at maximum load (in 0.01 inches or mm)
B) Time to failure
C) Air flow through the specimen
D) Moisture susceptibility
Answer: A
Rationale: Flow is the total deformation (plastic flow) measured from
initial loading to maximum load, usually in 0.01 inches.
8. Which AASHTO standard covers ignition method for asphalt
content?
A) AASHTO T 164