FDOT ASPHALT PAVING LEVEL 2
EXAM ACTUAL EXAM QUESTIONS
WITH DETAILED VERIFIED
ANSWERS (100% CORRECT
ANSWERS) /ALREADY GRADED A+
Determining a Target asphalt spread rate for non
FC-5 mixes - ....ANSWER...target spread rate =
thickness x gmm (from mix design) x 43.3
(round to the nearest whole number)
What is the tolerance for the asphalt spread rate
target? - ....ANSWER...+- 5%
How do you calculate the tolerance for the asphalt
spread rate target? - ....ANSWER...Ex: Target Spread
Rate = 165 lb/syds
165 x 0.05 (%5) = 8 lb/syd
Then you use the 8 as a + or - from 165 so the range
is from 157 to 173 lbs/syd
,Formula for determining the asphalt spread rate for
an FC-5 mix? - ....ANSWER...target spread rate =
thickness x gsb (from mix design) x 40.5
(round to the nearest whole number)
A prime coat being used on lime rock, sand-clay,
shell, and shell stabilized based have an application
rate of what? - ....ANSWER...Limerock: greater than
or equal to 0.10 gal/syd
Sand-Clay, Shell, Shell Base: greater than or equal
to 0.15 gal/syd
You do not test overbuild for density unless it is? -
....ANSWER...Greater than one inch
Where do you find approved tack products? -
....ANSWER...On the FDOT Approved products list
(APL)
During night what is the tack you usually use? -
....ANSWER...PG 52-28 or an approved emulsion
, What tack an you use during the day? -
....ANSWER...Any kind of tack
When determining the specification rate for 52-28
tack you do what? - ....ANSWER...Multiply the rate by
0.6
What is the tack application rate tolerance? -
....ANSWER...+/- 0.01 gal/syd
Step 1 for figuring the tack spread rate -
....ANSWER...Find the length of the tack shot
Station - station = ft
Step 2 for figuring the tack spread rate -
....ANSWER...Find the square yards
feet x width / 9 = syds
Step 3 for figuring the tack spread rate -
....ANSWER...Use the distributor chart to find the
gallons used
start 11/13 - 1319 gal
end 18/14 - 1140 gal
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