FDOT Earthwork Level 1 Exam Questions
and Answers All Correct
The standard block and gauge must have matching - Answer-serial numbers
If daily standard counts are out of tolerance even after being re-run what do you do? -
Answer-Replace gauge
Gauge calibration must be performed by - Answer-qualified personnel
How often must the gauge be calibrated per FDOT - Answer-Annually (FDOT) or when
needed
Take standard counts daily to - Answer-detect inconsistencies early
Standard counts are taken - Answer-every day its used and to measure equipment
aging and drift
In the gauge diary (for standard counts) when it is not used what do you put down? -
Answer-Idle
During a standard count the gauge must be how far from large objects - Answer-10ft
During a standard count the gauge must be how far from any nuclear source - Answer-
30ft
The standard count must be performed on what time of ground - Answer-Aspahlt,
concrete, or >100pcf material (greater than)
Keep the standard block and gauge - Answer-level and stable
For turning on the gauge how must it be handled - Answer-Warm up per manufacturer's
instructions
How do you determine the day to day shift - Answer-Find the Average of the previous 4
counts.
Find the difference between the avg and that days count.
Take the difference and divide it by the average.
Multiply the result by 100.
, Do this for for both density and moisture counts separately.
The shift tolerance for density counts is - Answer-a shift of 1% or less
The shift tolerance for moisture counts is - Answer-a shift of 2% or less
A gauge must be how far from all vertical projections - Answer-6 inches
When smoothing a test site remove all what? - Answer-Loose and disturbed material
When smoothing a test site and it has voids how big what do you do? - Answer-1/8 of
an inch. Use native fines to fill the voids
Always drive the drill rod to testing depth length and - Answer-another 2 more inches
Remove the drill rod by - Answer-rotating and pulling straight up
After placing the gauge in the test hole be sure to do what with the gauge and rod -
Answer-Pull it gently to the side so the rod comes in contact with the hole
What is the scaler on the gauge? - Answer-The digital readout
What do you obtain from a density reading? - Answer-Wet density
Soil Dry Density Count
Soil Moisture Count
Basics covered in Level 1 - Answer-Nuclear Testing
Speedy Moisture
Report Forms
Earthwork has to do with the roadway in what way? - Answer-Earthwork is the
excavation and placement of soils and materials supporting the proposed roadway.
In Earthwork what is a lift? - Answer-6" of compacted depth at full width
In Earthwork what is a Lot? - Answer-A lot is 1 lift at 500 ft or within compacted area.
Isolated compaction operations are separate lots.
Sampling at the roadway is done for - Answer-Done for base, sub grade, and
embankment.
Sampling is determined how - Answer-generated with random numbers usually by a
Verification Inspector
and Answers All Correct
The standard block and gauge must have matching - Answer-serial numbers
If daily standard counts are out of tolerance even after being re-run what do you do? -
Answer-Replace gauge
Gauge calibration must be performed by - Answer-qualified personnel
How often must the gauge be calibrated per FDOT - Answer-Annually (FDOT) or when
needed
Take standard counts daily to - Answer-detect inconsistencies early
Standard counts are taken - Answer-every day its used and to measure equipment
aging and drift
In the gauge diary (for standard counts) when it is not used what do you put down? -
Answer-Idle
During a standard count the gauge must be how far from large objects - Answer-10ft
During a standard count the gauge must be how far from any nuclear source - Answer-
30ft
The standard count must be performed on what time of ground - Answer-Aspahlt,
concrete, or >100pcf material (greater than)
Keep the standard block and gauge - Answer-level and stable
For turning on the gauge how must it be handled - Answer-Warm up per manufacturer's
instructions
How do you determine the day to day shift - Answer-Find the Average of the previous 4
counts.
Find the difference between the avg and that days count.
Take the difference and divide it by the average.
Multiply the result by 100.
, Do this for for both density and moisture counts separately.
The shift tolerance for density counts is - Answer-a shift of 1% or less
The shift tolerance for moisture counts is - Answer-a shift of 2% or less
A gauge must be how far from all vertical projections - Answer-6 inches
When smoothing a test site remove all what? - Answer-Loose and disturbed material
When smoothing a test site and it has voids how big what do you do? - Answer-1/8 of
an inch. Use native fines to fill the voids
Always drive the drill rod to testing depth length and - Answer-another 2 more inches
Remove the drill rod by - Answer-rotating and pulling straight up
After placing the gauge in the test hole be sure to do what with the gauge and rod -
Answer-Pull it gently to the side so the rod comes in contact with the hole
What is the scaler on the gauge? - Answer-The digital readout
What do you obtain from a density reading? - Answer-Wet density
Soil Dry Density Count
Soil Moisture Count
Basics covered in Level 1 - Answer-Nuclear Testing
Speedy Moisture
Report Forms
Earthwork has to do with the roadway in what way? - Answer-Earthwork is the
excavation and placement of soils and materials supporting the proposed roadway.
In Earthwork what is a lift? - Answer-6" of compacted depth at full width
In Earthwork what is a Lot? - Answer-A lot is 1 lift at 500 ft or within compacted area.
Isolated compaction operations are separate lots.
Sampling at the roadway is done for - Answer-Done for base, sub grade, and
embankment.
Sampling is determined how - Answer-generated with random numbers usually by a
Verification Inspector
