Asphalt Binder Testing Certification
Exam (PG Grading Basics) Exam Practice
Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. What does PG stand for in asphalt binder grading?
A. Pavement Grade
B. Performance Grading
C. Performance Grade
D. Pavement Guarantee
Answer: C. Performance Grade
Rationale: PG refers to Performance Grade, a system that classifies asphalt
binders based on expected pavement temperatures.
2. The PG grading system was developed under which research program?
,A. SHRP
B. AASHTO
C. ASTM
D. OSHA
Answer: A. SHRP
Rationale: The Strategic Highway Research Program (SHRP) developed the
Superpave Performance Grading system.
3. A PG 64-22 binder is designed for a high pavement temperature of:
A. 22°C
B. 64°F
C. 64°C
D. -22°C
Answer: C. 64°C
Rationale: The first number in a PG grade represents the average seven-
day maximum pavement temperature in degrees Celsius.
4. In PG 64-22, the "-22" indicates:
A. Air temperature
B. Mixing temperature
,C. Storage temperature
D. Minimum pavement temperature
Answer: D. Minimum pavement temperature
Rationale: The second number represents the minimum pavement
temperature the binder can withstand without cracking.
5. Which test measures rutting resistance at high temperatures?
A. BBR
B. DTT
C. Rotational Viscometer
D. Dynamic Shear Rheometer (DSR)
Answer: D. Dynamic Shear Rheometer (DSR)
Rationale: DSR evaluates binder stiffness and elastic properties associated
with rutting resistance.
6. Which binder property is most related to rutting?
A. Fatigue cracking
B. Thermal cracking
C. Moisture damage
D. High-temperature stiffness
Answer: D. High-temperature stiffness
, Rationale: Increased stiffness at high temperatures helps resist permanent
deformation.
7. Which device measures asphalt binder viscosity at mixing
temperatures?
A. DSR
B. BBR
C. Rotational Viscometer
D. Penetrometer
Answer: C. Rotational Viscometer
Rationale: Rotational viscosity testing ensures proper mixing and
compaction temperatures.
8. Typical viscosity testing is conducted at:
A. 25°C
B. 0°C
C. 135°C
D. -12°C
Answer: C. 135°C
Rationale: Superpave specifications commonly require viscosity
measurements at 135°C.
Exam (PG Grading Basics) Exam Practice
Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. What does PG stand for in asphalt binder grading?
A. Pavement Grade
B. Performance Grading
C. Performance Grade
D. Pavement Guarantee
Answer: C. Performance Grade
Rationale: PG refers to Performance Grade, a system that classifies asphalt
binders based on expected pavement temperatures.
2. The PG grading system was developed under which research program?
,A. SHRP
B. AASHTO
C. ASTM
D. OSHA
Answer: A. SHRP
Rationale: The Strategic Highway Research Program (SHRP) developed the
Superpave Performance Grading system.
3. A PG 64-22 binder is designed for a high pavement temperature of:
A. 22°C
B. 64°F
C. 64°C
D. -22°C
Answer: C. 64°C
Rationale: The first number in a PG grade represents the average seven-
day maximum pavement temperature in degrees Celsius.
4. In PG 64-22, the "-22" indicates:
A. Air temperature
B. Mixing temperature
,C. Storage temperature
D. Minimum pavement temperature
Answer: D. Minimum pavement temperature
Rationale: The second number represents the minimum pavement
temperature the binder can withstand without cracking.
5. Which test measures rutting resistance at high temperatures?
A. BBR
B. DTT
C. Rotational Viscometer
D. Dynamic Shear Rheometer (DSR)
Answer: D. Dynamic Shear Rheometer (DSR)
Rationale: DSR evaluates binder stiffness and elastic properties associated
with rutting resistance.
6. Which binder property is most related to rutting?
A. Fatigue cracking
B. Thermal cracking
C. Moisture damage
D. High-temperature stiffness
Answer: D. High-temperature stiffness
, Rationale: Increased stiffness at high temperatures helps resist permanent
deformation.
7. Which device measures asphalt binder viscosity at mixing
temperatures?
A. DSR
B. BBR
C. Rotational Viscometer
D. Penetrometer
Answer: C. Rotational Viscometer
Rationale: Rotational viscosity testing ensures proper mixing and
compaction temperatures.
8. Typical viscosity testing is conducted at:
A. 25°C
B. 0°C
C. 135°C
D. -12°C
Answer: C. 135°C
Rationale: Superpave specifications commonly require viscosity
measurements at 135°C.
