FDOT Asphalt Plant Level 1 questions n
answers graded A+
Proper weight of mix for gyratory compactor - correct answer ✔✔Around 4500 -
5000g. Determined through the mix design process to achieve the height of 115
+/- 5mm
Required amount of mix for Gmm (rice) samples? - correct answer ✔✔2000-
2200g total or 1000-1100 grams individually for two flasks
Required amount of mix for ignition samples? - correct answer ✔✔Depends on
the mix. SP & FC 5, 9.5, 12.5 are 1500g. SP 19 is 2000g
Asphalt burns off at what temp - correct answer ✔✔538°C (1000°F)
The furnace must be capable of what temperature - correct answer ✔✔650°C
(1200°F)
Flasks should be calibrated at what temperature and how often? - correct answer
✔✔77 +/ 2°F of water and once a month or >0.4 grams of dry weight
How many parts of wetting agent to water - correct answer ✔✔1ml wetting agent
to 1000ml water
, The vacuum applied to flasks for GMM - correct answer ✔✔30 +/- 2mm
Vacuum pressure for GMM must be reached within - correct answer ✔✔2
minutes
The Orbital Shaker must oscillate at - correct answer ✔✔270 +/- 10 rpms
The vacuum and oscillating test for GMM then continues for how long when it
reaches target pressure - correct answer ✔✔15 +/- 2minutes
Gyratory compaction angle is - correct answer ✔✔an internal angle of 1.16 +/- .02
degrees
Ram pressure for gyratory compaction is - correct answer ✔✔600 +/- 18 kpA
perpendicular to the axis
RPM the gyratory compactor operates at - correct answer ✔✔30 +/- .5 gyrations a
minute
Gyratory (GMB) and Rice (GMM) samples must be conditioned at what temp and
for how long - correct answer ✔✔compaction temp +/- 9 for 1 hour +/- 5minutes
and mix should be within +/-20° of compaction temp
The mold and base plate for the gyratory compactor should be in the oven for
how long - correct answer ✔✔30 to 60 minutes
answers graded A+
Proper weight of mix for gyratory compactor - correct answer ✔✔Around 4500 -
5000g. Determined through the mix design process to achieve the height of 115
+/- 5mm
Required amount of mix for Gmm (rice) samples? - correct answer ✔✔2000-
2200g total or 1000-1100 grams individually for two flasks
Required amount of mix for ignition samples? - correct answer ✔✔Depends on
the mix. SP & FC 5, 9.5, 12.5 are 1500g. SP 19 is 2000g
Asphalt burns off at what temp - correct answer ✔✔538°C (1000°F)
The furnace must be capable of what temperature - correct answer ✔✔650°C
(1200°F)
Flasks should be calibrated at what temperature and how often? - correct answer
✔✔77 +/ 2°F of water and once a month or >0.4 grams of dry weight
How many parts of wetting agent to water - correct answer ✔✔1ml wetting agent
to 1000ml water
, The vacuum applied to flasks for GMM - correct answer ✔✔30 +/- 2mm
Vacuum pressure for GMM must be reached within - correct answer ✔✔2
minutes
The Orbital Shaker must oscillate at - correct answer ✔✔270 +/- 10 rpms
The vacuum and oscillating test for GMM then continues for how long when it
reaches target pressure - correct answer ✔✔15 +/- 2minutes
Gyratory compaction angle is - correct answer ✔✔an internal angle of 1.16 +/- .02
degrees
Ram pressure for gyratory compaction is - correct answer ✔✔600 +/- 18 kpA
perpendicular to the axis
RPM the gyratory compactor operates at - correct answer ✔✔30 +/- .5 gyrations a
minute
Gyratory (GMB) and Rice (GMM) samples must be conditioned at what temp and
for how long - correct answer ✔✔compaction temp +/- 9 for 1 hour +/- 5minutes
and mix should be within +/-20° of compaction temp
The mold and base plate for the gyratory compactor should be in the oven for
how long - correct answer ✔✔30 to 60 minutes
