12–34.
Which of the following types of
surface cracks is caused by a lack
of bond between the surface layer
and the course beneath?
1.
Alligator
2.
Edge
3.
Reflection
4.
Slippage
12–35.
What type of surface defect
results from either compaction
or a movement of the subgrade
soil that weakens the subgrade?
1.
Cracking
2.
Distortion
3.
Disintegration
4.
Melting
12-36.
What type of surface defect
results from the localized
upward displacement of the
pavement caused by swelling
of the subgrade?
1.
Channeling
2.
Corrugation
3.
Depression
4.
Upheaval
12–37.
Which of the following types
of surface defects is usually
the result of a rich plant mix
or a prime or tack coat that
was placed too heavy?
1.
Polished aggregates
2.
Raveling aggregates
3.
Bleeding aggregates
4.
Rolling aggregates
12-38.
Repairs performed on flexible
pavements must start at the source
of the failure.
1.
True
2.
False
12–39.
When you are performing pavement-
cutting operations for patchwork,
the cut should extend to at least
what depth in the good pavement?
1.
1 foot
2.
2 foot
3.
3 foot
4.
4 foot
12–40.
When placing a hot mix in a patch,
you should overfill the area by
approximately what percentage over
the required pavement thickness?
1.
10%
2.
20%
3.
30%
4.
40%
Learning Objective:
Recognize the
principles of surface treatment.
12–41.
Of the following improvements,
which is gained by applying a
surface treatment?
1.
It waterproofs the surface
2.
It provides a wearing surface
3.
It prevents hydroplaning
4.
All of the above
12–42.
What is the liquid asphalt rate of
application (ROA) when performing
dust–laying operations?
1.
0.1 to 0.5 per square yard
2.
0.1 to 0.5 per square feet
3.
0.1 to 0.5 per cubic feet
4.
0.1 to 0.5 per cubic yards
12–43.
When performing single-surface
treatment operations, you should
push the aggregate into the
bituminous material using what
type of roller?
1.
A towed grid
2.
A vibratory steel drum
3.
A pneumatic–tired
4.
A vibratory sheepsfoot
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