FDOT ASPHALT PAVING LEVEL 1 EXAM | QUESTIONS AND
CORRECT ANSWERS | GRADED A+ | VERIFIED ANSWERS | JUST
RELEASED
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
1
, 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
Target specific height for pills - (CORRECT ANSWER)115.0mm +/- 5mm
How do you determine aggregate is dry? - (CORRECT ANSWER)Weigh the material every 15 minutes
when it has lost less than 0.5 grams is it considered dry
Bulk specific gravity (pill) water weight is determined after - (CORRECT ANSWER)4 +/- 1 minute
When the pill is removed from the water it should be blotted and weighed in what time and how -
(CORRECT ANSWER)5 seconds with a top and bot flip and then a roll roll
The towel should be damp
Formula for GMB (BSG) - (CORRECT ANSWER)Dry ÷ (SSD - Water Weight)
Round to 3 decimal places
Calculating air voids - (CORRECT ANSWER)(Gmm - Gmb ÷ Gmm) × 100
2
CORRECT ANSWERS | GRADED A+ | VERIFIED ANSWERS | JUST
RELEASED
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
1
, 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
Target specific height for pills - (CORRECT ANSWER)115.0mm +/- 5mm
How do you determine aggregate is dry? - (CORRECT ANSWER)Weigh the material every 15 minutes
when it has lost less than 0.5 grams is it considered dry
Bulk specific gravity (pill) water weight is determined after - (CORRECT ANSWER)4 +/- 1 minute
When the pill is removed from the water it should be blotted and weighed in what time and how -
(CORRECT ANSWER)5 seconds with a top and bot flip and then a roll roll
The towel should be damp
Formula for GMB (BSG) - (CORRECT ANSWER)Dry ÷ (SSD - Water Weight)
Round to 3 decimal places
Calculating air voids - (CORRECT ANSWER)(Gmm - Gmb ÷ Gmm) × 100
2
