FDOT EARTHWORK LEVEL 1
How often must the gauge be calibrated per FDOT - CORRECT
ANSWER-Annually (FDOT) or when needed
Take standard counts daily to - CORRECT ANSWER-detect
inconsistencies early
Standard counts are taken - CORRECT 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? - CORRECT ANSWER-Idle
During a standard count the gauge must be how far from large
objects - CORRECT ANSWER-10ft
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During a standard count the gauge must be how far from any
nuclear source - CORRECT ANSWER-30ft
The standard count must be performed on what time of ground -
CORRECT ANSWER-Aspahlt, concrete, or >100pcf material
(greater than)
Keep the standard block and gauge - CORRECT ANSWER-
level and stable
For turning on the gauge how must it be handled - CORRECT
ANSWER-Warm up per manufacturer's instructions
How do you determine the day to day shift - CORRECT
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 - CORRECT
ANSWER-a shift of 1% or less
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