Page |1
FDOT Asphalt Plant Level 1 Questions and
Correct Answers/ Latest Update / Already
Graded
Proper weight of mix for gyratory compactor
Ans: Around 4500 - 5000g. Determined through the mix design
process to achieve the height of 115 +/- 5mm
Required amount of mix for Gmm (rice) samples?
Ans: 2000-2200g total or 1000-1100 grams individually for two
flasks
Required amount of mix for ignition samples?
Ans: Depends on the mix. SP & FC 5, 9.5, 12.5 are 1500g. SP 19
is 2000g
Asphalt burns off at what temp
Ans: 538°C (1000°F)
The furnace must be capable of what temperature
Ans: 650°C (1200°F)
All rights reserved © 2025/ 2026 |
, Page |2
Flasks should be calibrated at what temperature and how often?
Ans: 77 +/ 2°F of water and once a month or >0.4 grams of dry
weight
How many parts of wetting agent to water
Ans: 1ml wetting agent to 1000ml water
The vacuum applied to flasks for GMM
Ans: 30 +/- 2mm
Vacuum pressure for GMM must be reached within
Ans: 2 minutes
The Orbital Shaker must oscillate at
Ans: 270 +/- 10 rpms
The vacuum and oscillating test for GMM then continues for how long
when it reaches target pressure
Ans: 15 +/- 2minutes
All rights reserved © 2025/ 2026 |
FDOT Asphalt Plant Level 1 Questions and
Correct Answers/ Latest Update / Already
Graded
Proper weight of mix for gyratory compactor
Ans: Around 4500 - 5000g. Determined through the mix design
process to achieve the height of 115 +/- 5mm
Required amount of mix for Gmm (rice) samples?
Ans: 2000-2200g total or 1000-1100 grams individually for two
flasks
Required amount of mix for ignition samples?
Ans: Depends on the mix. SP & FC 5, 9.5, 12.5 are 1500g. SP 19
is 2000g
Asphalt burns off at what temp
Ans: 538°C (1000°F)
The furnace must be capable of what temperature
Ans: 650°C (1200°F)
All rights reserved © 2025/ 2026 |
, Page |2
Flasks should be calibrated at what temperature and how often?
Ans: 77 +/ 2°F of water and once a month or >0.4 grams of dry
weight
How many parts of wetting agent to water
Ans: 1ml wetting agent to 1000ml water
The vacuum applied to flasks for GMM
Ans: 30 +/- 2mm
Vacuum pressure for GMM must be reached within
Ans: 2 minutes
The Orbital Shaker must oscillate at
Ans: 270 +/- 10 rpms
The vacuum and oscillating test for GMM then continues for how long
when it reaches target pressure
Ans: 15 +/- 2minutes
All rights reserved © 2025/ 2026 |
