ASPHALT PAVING GC EXAM QUESTIONS
WITH CORRECT ANSWERS 2026
Base Course - CORRECT ANSWER -
Layer or layers of specified material of designated thickness or rate of application based on a s
ubbase or subgrade to support the subsequent layers
Bridge - CORRECT ANSWER -Over a depression; longer than 20'
The subgrade is the top of roadbed upon which the pavement structure and shoulder
s are constructed - CORRECT ANSWER -18"
Do not use glass in the top of the embankment - CORRECT ANSWER -18"
Clear and grub minimum of from each edge of proposed pavement along both lanes and
legs of interchange - CORRECT ANSWER -30'
Where clearing and grubbing within the roadway is indicated at a bridge site, clear by cutting a
ll trees, stumps, etc. to within of the ground or to low water in the full width of the RO
W for a distance of 75' beyond the beginning and end of the proposed bridge -
CORRECT ANSWER -8"
Compact the subgrade between the lines inches outside the area occupied by the pavem
ent structure, including C&G & SW to not less than 95% of max density - CORRECT ANSWER -
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 sto
ne retained on the sieve - CORRECT ANSWER -80%
,#4 sieve - CORRECT ANSWER -4.75 mm
Ensure finished surface of base varies neither than 3/8" from a straight edge 10' long when ap
plied parallel to the CL of the rd, no more than inch from the typical cross-
section on the plans - CORRECT ANSWER -1/2"
Thickness of completed modified base is measured at staggered intervals not to exceed
feet in length for two-lane roads - CORRECT ANSWER -250'
Use in all base courses as an anti-stripping additive - CORRECT ANSWER -
hydrated lime
Where plans required uniform thickness of base course and the contract provides for pavemen
t on sq yd bases, thickness of base course is determined from measurements taken of the com
pleted base course at intervals not exceeding feet for two-lane roads -
CORRECT ANSWER -500'
For HMA, use aggregates with a combined specific gravity of or less -
CORRECT ANSWER -2.90
ON HMA use pneumo-
rollers that are self propelled and have an effective rolling width of not less than -
CORRECT ANSWER -60"
Ensure intermediate rolling of HMA is completed before mat temp drops below -
CORRECT ANSWER -175 degrees
First step in applying asphalt surface treatment (single) - CORRECT ANSWER -Clean surface
, Last step in applying asphalt surface treatment (single) - CORRECT ANSWER -
Remove excess aggregate
Spread aggregate for HMA within feet of the application of the emulsion -
CORRECT ANSWER -200'
Place asphalt surface treatment (double) within days of the base course being primed -
CORRECT ANSWER -7
When rolling aggregate applications for asphalt surface treatment (double) on each trip of the
roller, overlap prior by _____ the width of the roller - CORRECT ANSWER -1/2
On portland cement pavement, position lower surface of preformed joint filler on or below sur
face of base while upper surface is inches below surface of the slab -
CORRECT ANSWER -1/2"
When using surface vibrators on portland concrete, ensure frequency is not less than i
mpulses per minute - CORRECT ANSWER -3500
Construct subbase and base beneath concrete pavement to include area inches in width
extending beyond edges to provide stability for paver tracks - CORRECT ANSWER -18"
Min. width of any reinforced concrete slab is feet - CORRECT ANSWER -16'
Max. length of any reinforced concrete slab is feet - CORRECT ANSWER -20'
Exclude all vehicle traffic from newly constructed concrete pavement for a period of not less th
an days - CORRECT ANSWER -14
WITH CORRECT ANSWERS 2026
Base Course - CORRECT ANSWER -
Layer or layers of specified material of designated thickness or rate of application based on a s
ubbase or subgrade to support the subsequent layers
Bridge - CORRECT ANSWER -Over a depression; longer than 20'
The subgrade is the top of roadbed upon which the pavement structure and shoulder
s are constructed - CORRECT ANSWER -18"
Do not use glass in the top of the embankment - CORRECT ANSWER -18"
Clear and grub minimum of from each edge of proposed pavement along both lanes and
legs of interchange - CORRECT ANSWER -30'
Where clearing and grubbing within the roadway is indicated at a bridge site, clear by cutting a
ll trees, stumps, etc. to within of the ground or to low water in the full width of the RO
W for a distance of 75' beyond the beginning and end of the proposed bridge -
CORRECT ANSWER -8"
Compact the subgrade between the lines inches outside the area occupied by the pavem
ent structure, including C&G & SW to not less than 95% of max density - CORRECT ANSWER -
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 sto
ne retained on the sieve - CORRECT ANSWER -80%
,#4 sieve - CORRECT ANSWER -4.75 mm
Ensure finished surface of base varies neither than 3/8" from a straight edge 10' long when ap
plied parallel to the CL of the rd, no more than inch from the typical cross-
section on the plans - CORRECT ANSWER -1/2"
Thickness of completed modified base is measured at staggered intervals not to exceed
feet in length for two-lane roads - CORRECT ANSWER -250'
Use in all base courses as an anti-stripping additive - CORRECT ANSWER -
hydrated lime
Where plans required uniform thickness of base course and the contract provides for pavemen
t on sq yd bases, thickness of base course is determined from measurements taken of the com
pleted base course at intervals not exceeding feet for two-lane roads -
CORRECT ANSWER -500'
For HMA, use aggregates with a combined specific gravity of or less -
CORRECT ANSWER -2.90
ON HMA use pneumo-
rollers that are self propelled and have an effective rolling width of not less than -
CORRECT ANSWER -60"
Ensure intermediate rolling of HMA is completed before mat temp drops below -
CORRECT ANSWER -175 degrees
First step in applying asphalt surface treatment (single) - CORRECT ANSWER -Clean surface
, Last step in applying asphalt surface treatment (single) - CORRECT ANSWER -
Remove excess aggregate
Spread aggregate for HMA within feet of the application of the emulsion -
CORRECT ANSWER -200'
Place asphalt surface treatment (double) within days of the base course being primed -
CORRECT ANSWER -7
When rolling aggregate applications for asphalt surface treatment (double) on each trip of the
roller, overlap prior by _____ the width of the roller - CORRECT ANSWER -1/2
On portland cement pavement, position lower surface of preformed joint filler on or below sur
face of base while upper surface is inches below surface of the slab -
CORRECT ANSWER -1/2"
When using surface vibrators on portland concrete, ensure frequency is not less than i
mpulses per minute - CORRECT ANSWER -3500
Construct subbase and base beneath concrete pavement to include area inches in width
extending beyond edges to provide stability for paver tracks - CORRECT ANSWER -18"
Min. width of any reinforced concrete slab is feet - CORRECT ANSWER -16'
Max. length of any reinforced concrete slab is feet - CORRECT ANSWER -20'
Exclude all vehicle traffic from newly constructed concrete pavement for a period of not less th
an days - CORRECT ANSWER -14
