Under 18VAC50-22-30, which description matches the Virginia Asphalt Paving and Sealcoating (PAV) specialty?
License Scope
Question · Easy
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Short
Which other Virginia contractor classification also provides the asphalt paving and sealcoating function defined for PAV?
Which utility-related task is expressly included in the PAV specialty?
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Which recreational surfaces are named in the PAV specialty definition?
A property owner hires a contractor to mill and haul off a failed asphalt parking lot with no replacement paving in the same contract. Is that work inside the PAV specialty?
A Virginia contractor with only the PAV specialty is asked to place asphalt on a public-use airport runway. What is the correct scope conclusion?
Question · Medium
Which contract is outside PAV even though the crew will later pave over the trench?
A homeowner wants a new asphalt driveway on a single-family lot. Which statement is correct?
A firm holds only PAV and is invited to reconstruct two miles of a VDOT primary highway, including new drainage systems, pavement, and road marking. What is the correct licensing analysis?
Question · Hard
A parks department wants a new asphalt tennis court. The bidder holds only Recreational Facility Contracting (RFC). Why is that license not enough?
What is the primary purpose of proof-rolling a prepared subgrade or aggregate base before paving?
Subgrade And Base
Which subgrade condition is unacceptable immediately before placing hot-mix asphalt?
What is the main structural job of a compacted crushed-aggregate base under asphalt?
Why is soil or aggregate base placed and compacted in successive lifts rather than in one thick dump?
Virginia site and VDOT-style paving specifications commonly require compacted subgrade or aggregate base to reach about what percentage of the laboratory maximum dry density?
A nuclear gauge shows the aggregate base is at the specified dry density but is several points wetter than optimum moisture. What is the most likely field result?
A parking-lot subgrade is wet, silty, and fails a proof-roll after ordinary recompaction. Which improvement is a standard paving-contractor response when the engineer allows it?
What does undercutting a failed subgrade area mean on an asphalt paving project?
On a compacted aggregate base, a nuclear density gauge is used primarily to determine which pair of values?
A nuclear gauge reports a wet density of 132.0 lb/ft³ at 10.0 percent moisture. What is the dry density?
Unless the specification allows a thicker testable layer, a common maximum compacted thickness for a soil or dense-graded aggregate lift is about:
Why should the finished subgrade and aggregate base be crowned or sloped before asphalt is placed?
A parking-lot base is specified at 95 percent relative compaction. The laboratory maximum dry density is 128.0 lb/ft³. What minimum in-place dry density is required?
A compacted aggregate base is 60 feet long, 45 feet wide, and 6 inches thick. How many cubic yards of compacted base are in place (ignore waste)?
On many Virginia parking lots and subdivision streets, the untreated crushed-stone layer under asphalt is specified as which VDOT materials?
When is a prime coat used on an asphalt paving project?
Why is a tack coat applied before placing a new hot-mix lift on existing asphalt?
Hot Mix Asphalt
A thunderstorm starts while the paver is placing a surface mix. What is the correct action?
What is the standard roller sequence for a hot-mix asphalt mat?
What is the main reason a hot-mix asphalt mat must be compacted while it is still hot?
VDOT-style asphalt specifications commonly require compaction rolling to be completed before the mat cools below about what temperature?
In VDOT mix nomenclature, what is SM-9.5A?
A common VDOT-style tack-coat application rate on an existing asphalt surface, adjusted for texture, is on the order of:
What is the preferred way to build a longitudinal joint between two adjacent hot-mix passes?
Coarse, rock-rich streaks beside fine, binder-rich streaks in a fresh mat are a sign of which placement problem?
Field density of a Superpave asphalt mat is most often expressed as a percentage of which laboratory value?
What does the paver screed do?
A mix that shoves, checks, or moves sideways under the breakdown roller, then later firms up, is commonly called:
Superpave placement guidance commonly limits a compacted asphalt lift to about 4 times the nominal maximum aggregate size. For a 9.5 mm (3/8 inch) surface mix, that practical maximum is about:
The mat has cooled below the specified compaction temperature and the roller is leaving hairline transverse cracks (checking). What should the crew do?
How should a transverse (header) joint be prepared before the next paving shift?
For conventional dense-graded hot-mix (not warm mix), a typical plant-to-paver temperature window is about:
What is the primary purpose of an asphalt emulsion or similar pavement sealcoat on a parking lot?
Sealcoating And Crack Filling
What preparation should be completed before sealcoat is applied?
Which weather condition is acceptable for applying emulsion pavement sealer?
Why do sealcoat specifications usually call for two thin coats rather than one heavy coat?
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