WAQTC: Asphalt 2 UPDATED ACTUAL
Exam Questions and CORRECT Answers
What are the two primary ingredients in asphalt mixtures? - CORRECT ANSWER -
Aggregate & asphalt binder
HMA - CORRECT ANSWER - Hot Mix Asphalt
WMA - CORRECT ANSWER - Warm Mix Asphalt
3 Types of Asphalt Mixtures? - CORRECT ANSWER - Dense-graded
Open-graded
Gap-graded
What's included in the total volume of an asphalt mix? - CORRECT ANSWER -
Entrapped air voids
Moisture
Effective & absorbed binder
Mineral aggregate
Air Voids (Va) - CORRECT ANSWER - Total volume of small air pockets between coated
aggregate
SMA - CORRECT ANSWER - Stone matrix asphalt
Cutback Asphalt - CORRECT ANSWER - Binder that's been modified by blending w/a
chemical solvent
Gmm - CORRECT ANSWER - Theoretical maximum specific gravity
, Gmb - CORRECT ANSWER - Measured bulk specific gravity
Gsb - CORRECT ANSWER - Oven-dry bulk specific gravity of aggregate
Gsa - CORRECT ANSWER - Apparent specific gravity of aggregate
Gse - CORRECT ANSWER - Effective specific gravity
Gb - CORRECT ANSWER - Specific gravity of the asphalt binder
Containers used for sampling - CORRECT ANSWER - Cardboard boxes, metal cans,
stainless steel bowls, or other agency approved containers
Specs for sampling plate - CORRECT ANSWER - Thick metal, minimum 8 gauge, wire
attached to corner long enough to reach from the center of the paver to the farthest auger
extension. Min one 0.25 in. hole in the corner of the plate
What is a Mechanical Sampling Device - CORRECT ANSWER - Permanently attached
device that allows sampling receptacle to pass through the entire stream of material or diverts
material into the container by manual, hydraulic, or pneumatic operation
Release agent - CORRECT ANSWER - Non-stick product that prevents mix from sticking
to the apparatus (no solvents or petroleum based products)
How do you determine sample size - CORRECT ANSWER - Depends on test methods
specified. Check agency requirement for size required.
Explain the procedure for attached sampling devices - CORRECT ANSWER - -Coat or
pre-heat it
Exam Questions and CORRECT Answers
What are the two primary ingredients in asphalt mixtures? - CORRECT ANSWER -
Aggregate & asphalt binder
HMA - CORRECT ANSWER - Hot Mix Asphalt
WMA - CORRECT ANSWER - Warm Mix Asphalt
3 Types of Asphalt Mixtures? - CORRECT ANSWER - Dense-graded
Open-graded
Gap-graded
What's included in the total volume of an asphalt mix? - CORRECT ANSWER -
Entrapped air voids
Moisture
Effective & absorbed binder
Mineral aggregate
Air Voids (Va) - CORRECT ANSWER - Total volume of small air pockets between coated
aggregate
SMA - CORRECT ANSWER - Stone matrix asphalt
Cutback Asphalt - CORRECT ANSWER - Binder that's been modified by blending w/a
chemical solvent
Gmm - CORRECT ANSWER - Theoretical maximum specific gravity
, Gmb - CORRECT ANSWER - Measured bulk specific gravity
Gsb - CORRECT ANSWER - Oven-dry bulk specific gravity of aggregate
Gsa - CORRECT ANSWER - Apparent specific gravity of aggregate
Gse - CORRECT ANSWER - Effective specific gravity
Gb - CORRECT ANSWER - Specific gravity of the asphalt binder
Containers used for sampling - CORRECT ANSWER - Cardboard boxes, metal cans,
stainless steel bowls, or other agency approved containers
Specs for sampling plate - CORRECT ANSWER - Thick metal, minimum 8 gauge, wire
attached to corner long enough to reach from the center of the paver to the farthest auger
extension. Min one 0.25 in. hole in the corner of the plate
What is a Mechanical Sampling Device - CORRECT ANSWER - Permanently attached
device that allows sampling receptacle to pass through the entire stream of material or diverts
material into the container by manual, hydraulic, or pneumatic operation
Release agent - CORRECT ANSWER - Non-stick product that prevents mix from sticking
to the apparatus (no solvents or petroleum based products)
How do you determine sample size - CORRECT ANSWER - Depends on test methods
specified. Check agency requirement for size required.
Explain the procedure for attached sampling devices - CORRECT ANSWER - -Coat or
pre-heat it
