Asphalt Paving GC Exam UPDATED
ACTUAL Exam Questions and CORRECT
Answers
Base Course - CORRECT ANSWER - 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 - CORRECT ANSWER - Over a depression; longer than 20'
The subgrade is the top _______ of roadbed upon which the pavement structure and shoulders
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 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 - CORRECT
ANSWER - 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 - 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 stone
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
applied 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 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 - 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
surface 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 ______
impulses 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
than ______ days - CORRECT ANSWER - 14
Finish joints should not deviate more than ____ inch in the horizontal alignment from a straight
line - CORRECT ANSWER - 1/4"
Make transverse construction joints whenever placing of concrete is suspended longer than
_____ minutes - CORRECT ANSWER - 30 minutes
ACTUAL Exam Questions and CORRECT
Answers
Base Course - CORRECT ANSWER - 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 - CORRECT ANSWER - Over a depression; longer than 20'
The subgrade is the top _______ of roadbed upon which the pavement structure and shoulders
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 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 - CORRECT
ANSWER - 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 - 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 stone
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
applied 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 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 - 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
surface 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 ______
impulses 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
than ______ days - CORRECT ANSWER - 14
Finish joints should not deviate more than ____ inch in the horizontal alignment from a straight
line - CORRECT ANSWER - 1/4"
Make transverse construction joints whenever placing of concrete is suspended longer than
_____ minutes - CORRECT ANSWER - 30 minutes
