Asphalt Paving GC Exam questions with verified
answers
Base Course Ans✔✔✔-Layer or layers of specified material of designated
thickness or rate of application based on a subbase or subgrade to support the
subsequent layers
Bridge Ans✔✔✔-Over a depression; longer than 20'
The subgrade is the top _______ of roadbed upon which the pavement structure
and shoulders are constructed Ans✔✔✔-18"
Do not use glass in the top _____ of the embankment Ans✔✔✔-18"
Clear and grub minimum of ____ from each edge of proposed pavement along
both lanes and legs of interchange Ans✔✔✔-30'
Where clearing and grubbing within the roadway is indicated at a bridge site,
clear by cutting all trees, stumps, etc. to within ______ of the ground or to low
water in the full width of the ROW for a distance of 75' beyond the beginning and
end of the proposed bridge Ans✔✔✔-8"
Compact the subgrade between the lines ____ inches outside the area occupied
by the pavement structure, including C&G & SW to not less than 95% of max
density Ans✔✔✔-18"
,Pulverize base course material so that the completion of the moist mixing 100%
(by dry weight) passes the 1.5" sieve and a minimum of _____ passes the #4
sieve, exclusive of gravel and stone retained on the sieve Ans✔✔✔-80%
#4 sieve Ans✔✔✔-4.75 mm
Ensure finished surface of base varies neither than 3/8" from a straight edge 10'
long when applied parallel to the CL of the rd, no more than ______ inch from the
typical cross-section on the plans Ans✔✔✔-1/2"
Thickness of completed modified base is measured at staggered intervals not to
exceed _____ feet in length for two-lane roads Ans✔✔✔-250'
Use _______ in all base courses as an anti-stripping additive Ans✔✔✔-hydrated
lime
Where plans required uniform thickness of base course and the contract provides
for pavement on sq yd bases, thickness of base course is determined from
measurements taken of the completed base course at intervals not exceeding
_____ feet for two-lane roads Ans✔✔✔-500'
For HMA, use aggregates with a combined specific gravity of _____ or less
Ans✔✔✔-2.90
ON HMA use pneumo-rollers that are self propelled and have an effective rolling
width of not less than _______ Ans✔✔✔-60"
, Ensure intermediate rolling of HMA is completed before mat temp drops below
_____ Ans✔✔✔-175 degrees
First step in applying asphalt surface treatment (single) Ans✔✔✔-Clean surface
Last step in applying asphalt surface treatment (single) Ans✔✔✔-Remove excess
aggregate
Spread aggregate for HMA within _____ feet of the application of the emulsion
Ans✔✔✔-200'
Place asphalt surface treatment (double) within ____ days of the base course
being primed Ans✔✔✔-7
When rolling aggregate applications for asphalt surface treatment (double) on
each trip of the roller, overlap prior by _____ the width of the roller Ans✔✔✔-
1/2
On portland cement pavement, position lower surface of preformed joint filler on
or below surface of base while upper surface is _____ inches below surface of the
slab Ans✔✔✔-1/2"
When using surface vibrators on portland concrete, ensure frequency is not less
than ______ impulses per minute Ans✔✔✔-3500
Construct subbase and base beneath concrete pavement to include area _____
inches in width extending beyond edges to provide stability for paver tracks
Ans✔✔✔-18"
answers
Base Course Ans✔✔✔-Layer or layers of specified material of designated
thickness or rate of application based on a subbase or subgrade to support the
subsequent layers
Bridge Ans✔✔✔-Over a depression; longer than 20'
The subgrade is the top _______ of roadbed upon which the pavement structure
and shoulders are constructed Ans✔✔✔-18"
Do not use glass in the top _____ of the embankment Ans✔✔✔-18"
Clear and grub minimum of ____ from each edge of proposed pavement along
both lanes and legs of interchange Ans✔✔✔-30'
Where clearing and grubbing within the roadway is indicated at a bridge site,
clear by cutting all trees, stumps, etc. to within ______ of the ground or to low
water in the full width of the ROW for a distance of 75' beyond the beginning and
end of the proposed bridge Ans✔✔✔-8"
Compact the subgrade between the lines ____ inches outside the area occupied
by the pavement structure, including C&G & SW to not less than 95% of max
density Ans✔✔✔-18"
,Pulverize base course material so that the completion of the moist mixing 100%
(by dry weight) passes the 1.5" sieve and a minimum of _____ passes the #4
sieve, exclusive of gravel and stone retained on the sieve Ans✔✔✔-80%
#4 sieve Ans✔✔✔-4.75 mm
Ensure finished surface of base varies neither than 3/8" from a straight edge 10'
long when applied parallel to the CL of the rd, no more than ______ inch from the
typical cross-section on the plans Ans✔✔✔-1/2"
Thickness of completed modified base is measured at staggered intervals not to
exceed _____ feet in length for two-lane roads Ans✔✔✔-250'
Use _______ in all base courses as an anti-stripping additive Ans✔✔✔-hydrated
lime
Where plans required uniform thickness of base course and the contract provides
for pavement on sq yd bases, thickness of base course is determined from
measurements taken of the completed base course at intervals not exceeding
_____ feet for two-lane roads Ans✔✔✔-500'
For HMA, use aggregates with a combined specific gravity of _____ or less
Ans✔✔✔-2.90
ON HMA use pneumo-rollers that are self propelled and have an effective rolling
width of not less than _______ Ans✔✔✔-60"
, Ensure intermediate rolling of HMA is completed before mat temp drops below
_____ Ans✔✔✔-175 degrees
First step in applying asphalt surface treatment (single) Ans✔✔✔-Clean surface
Last step in applying asphalt surface treatment (single) Ans✔✔✔-Remove excess
aggregate
Spread aggregate for HMA within _____ feet of the application of the emulsion
Ans✔✔✔-200'
Place asphalt surface treatment (double) within ____ days of the base course
being primed Ans✔✔✔-7
When rolling aggregate applications for asphalt surface treatment (double) on
each trip of the roller, overlap prior by _____ the width of the roller Ans✔✔✔-
1/2
On portland cement pavement, position lower surface of preformed joint filler on
or below surface of base while upper surface is _____ inches below surface of the
slab Ans✔✔✔-1/2"
When using surface vibrators on portland concrete, ensure frequency is not less
than ______ impulses per minute Ans✔✔✔-3500
Construct subbase and base beneath concrete pavement to include area _____
inches in width extending beyond edges to provide stability for paver tracks
Ans✔✔✔-18"
