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NICET CMT10 Asphalt Laboratory Technician Level
III Exam ACTUAL QUESTIONS AND ANSWERS
LATEST UPDATE THIS YEAR
NICET CMT10 Asphalt Laboratory Technician Level III Exam
Summarized Exam Coverage
The NICET CMT10 Asphalt Laboratory Technician Level III is an advanced certification for technicians
who perform laboratory testing of asphalt mixtures and oversee quality control in hot mix asphalt
(HMA) production . Level III indicates the highest level of competency, requiring the technician to
demonstrate proficiency in performing tests, analyzing results, troubleshooting mix problems, and
recommending adjustments .
Key Exam Domains:
Domain Key Topics
Superpave Mix Gyratory compaction (Nini, Ndes, Nmax), volumetric properties (VMA, VFA, air voids), optimum
Design binder content selection, gradation analysis
Los Angeles Abrasion, Fine Aggregate Angularity (FAA), Flat and Elongated particles, Sand Equiva
Aggregate Testing
specific gravity (bulk, apparent, SSD)
Performance Grade (PG) requirements, viscosity, penetration, softening point, rotational viscom
Binder Testing
DSR, BBR, RTFO, PAV
Gmm (Rice specific gravity), Gmb (bulk specific gravity), air voids calculation, effective asphalt
Mix Volumetrics
content, dust-to-binder ratio, binder film thickness
Flow Number (rutting potential), Dynamic Modulus (stiffness), Indirect Tensile Strength (IDT),
Performance Tests
Hamburg Wheel Tracking (moisture susceptibility)
Plant Operations Aggregate stockpile management, moisture content, baghouse fines, silo segregation, temperatu
& QC monitoring, mix sampling, HMA production control charts
1. The primary purpose of a Superpave gyratory compactor is to simulate:
A. Traffic loading and densification
B. Marshall impact compaction
C. Field rolling temperature
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D. Aggregate crushing resistance
Answer: A
The gyratory compactor applies kneading action to simulate the densification effect of traffic loading
during mix design, distinguishing it from Marshall impact compaction .
2. In Superpave mix design, Ndesign represents:
A. Minimum compaction effort
B. Construction compaction level
C. Expected traffic loading level
D. Laboratory aging period
Answer: C
Ndesign corresponds to the number of gyrations representing the density expected under design traffic
loading, typically 96% of Gmm at that point .
3. The Voids in Mineral Aggregate (VMA) is defined as:
A. Air voids in compacted mixture
B. Volume of binder in the mix
C. Volume of voids between aggregate particles
D. Percent moisture absorbed by aggregate
Answer: C
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VMA is the total intergranular void space between aggregate particles, including both air voids and
effective binder volume .
4. Which test determines the resistance of asphalt mixtures to permanent deformation?
A. Marshall Stability
B. Indirect Tensile Strength
C. Flow Number Test
D. Rice Specific Gravity
Answer: C
The Flow Number test evaluates rutting resistance by applying repeated loading cycles and measuring
accumulated strain .
5. The maximum specific gravity (Gmm) is determined using:
A. AASHTO T 84
B. AASHTO T 85
C. AASHTO T 209
D. AASHTO T 166
Answer: C
AASHTO T 209 (Rice test) measures the theoretical maximum specific gravity by determining the volume
of uncompacted loose mix .
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6. Effective asphalt content refers to:
A. Total asphalt in the mix
B. The portion absorbed by aggregate
C. Total asphalt minus absorbed asphalt
D. Asphalt that oxidizes during mixing
Answer: C
Effective asphalt content is the portion of total binder that remains available to coat aggregate particles
and is calculated as total binder minus absorbed binder .
7. Which volumetric requirement is most critical for ensuring adequate durability of asphalt mixtures?
A. Low air voids
B. Adequate VMA
C. High stability
D. Low flow
Answer: B
Adequate VMA ensures sufficient space for effective binder, providing a thick binder film around
aggregates essential for durability and aging resistance .
8. Short-term aging (STOA) of asphalt binder is performed using:
A. Rolling Thin Film Oven (RTFO)
NICET CMT10 Asphalt Laboratory Technician Level
III Exam ACTUAL QUESTIONS AND ANSWERS
LATEST UPDATE THIS YEAR
NICET CMT10 Asphalt Laboratory Technician Level III Exam
Summarized Exam Coverage
The NICET CMT10 Asphalt Laboratory Technician Level III is an advanced certification for technicians
who perform laboratory testing of asphalt mixtures and oversee quality control in hot mix asphalt
(HMA) production . Level III indicates the highest level of competency, requiring the technician to
demonstrate proficiency in performing tests, analyzing results, troubleshooting mix problems, and
recommending adjustments .
Key Exam Domains:
Domain Key Topics
Superpave Mix Gyratory compaction (Nini, Ndes, Nmax), volumetric properties (VMA, VFA, air voids), optimum
Design binder content selection, gradation analysis
Los Angeles Abrasion, Fine Aggregate Angularity (FAA), Flat and Elongated particles, Sand Equiva
Aggregate Testing
specific gravity (bulk, apparent, SSD)
Performance Grade (PG) requirements, viscosity, penetration, softening point, rotational viscom
Binder Testing
DSR, BBR, RTFO, PAV
Gmm (Rice specific gravity), Gmb (bulk specific gravity), air voids calculation, effective asphalt
Mix Volumetrics
content, dust-to-binder ratio, binder film thickness
Flow Number (rutting potential), Dynamic Modulus (stiffness), Indirect Tensile Strength (IDT),
Performance Tests
Hamburg Wheel Tracking (moisture susceptibility)
Plant Operations Aggregate stockpile management, moisture content, baghouse fines, silo segregation, temperatu
& QC monitoring, mix sampling, HMA production control charts
1. The primary purpose of a Superpave gyratory compactor is to simulate:
A. Traffic loading and densification
B. Marshall impact compaction
C. Field rolling temperature
, Page 2 of 112
D. Aggregate crushing resistance
Answer: A
The gyratory compactor applies kneading action to simulate the densification effect of traffic loading
during mix design, distinguishing it from Marshall impact compaction .
2. In Superpave mix design, Ndesign represents:
A. Minimum compaction effort
B. Construction compaction level
C. Expected traffic loading level
D. Laboratory aging period
Answer: C
Ndesign corresponds to the number of gyrations representing the density expected under design traffic
loading, typically 96% of Gmm at that point .
3. The Voids in Mineral Aggregate (VMA) is defined as:
A. Air voids in compacted mixture
B. Volume of binder in the mix
C. Volume of voids between aggregate particles
D. Percent moisture absorbed by aggregate
Answer: C
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VMA is the total intergranular void space between aggregate particles, including both air voids and
effective binder volume .
4. Which test determines the resistance of asphalt mixtures to permanent deformation?
A. Marshall Stability
B. Indirect Tensile Strength
C. Flow Number Test
D. Rice Specific Gravity
Answer: C
The Flow Number test evaluates rutting resistance by applying repeated loading cycles and measuring
accumulated strain .
5. The maximum specific gravity (Gmm) is determined using:
A. AASHTO T 84
B. AASHTO T 85
C. AASHTO T 209
D. AASHTO T 166
Answer: C
AASHTO T 209 (Rice test) measures the theoretical maximum specific gravity by determining the volume
of uncompacted loose mix .
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6. Effective asphalt content refers to:
A. Total asphalt in the mix
B. The portion absorbed by aggregate
C. Total asphalt minus absorbed asphalt
D. Asphalt that oxidizes during mixing
Answer: C
Effective asphalt content is the portion of total binder that remains available to coat aggregate particles
and is calculated as total binder minus absorbed binder .
7. Which volumetric requirement is most critical for ensuring adequate durability of asphalt mixtures?
A. Low air voids
B. Adequate VMA
C. High stability
D. Low flow
Answer: B
Adequate VMA ensures sufficient space for effective binder, providing a thick binder film around
aggregates essential for durability and aging resistance .
8. Short-term aging (STOA) of asphalt binder is performed using:
A. Rolling Thin Film Oven (RTFO)
