Exam (elaborations)
DENSITY NUCLEAR GAUGE QUESTIONS AND ANSWERS
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DENSITY NUCLEAR GAUGE QUESTIONS AND ANSWERS...
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DENSITY NUCLEAR GAUGE QUESTIONS ANDANSWERS
Before employing a nuclear density gauge on a job, a __________ __________
must be taken every day to ensure that the gauge is working properly. -
ANSWER Standard count
A normal count should be conducted on a ____________ surface, __________
feet away from big objects, and _________ feet away from other nuclear
gauges. - ANSWER asphalt, more than 10 feet, more over 60
The use of a nuclear density gauge to determine the density of an asphalt
pavement necessitates the calculation of a ____________ adjustment factor for
each gauge, mixture, and work. - ANSWER Job
Each job correction factor requires ____ core correction factors. - Answer: 5
Four density readings within _________ feet of the core site are used to
calculate each core correction factor. - ANSWER WD, 1.
When determining density with the backscatter method on a cold asphalt mat,
set the time to ________ minute(s) and the depth to _____________. -
ANSWER 1, Backscatter
To use a nuclear density gauge to determine the density of an asphalt pavement,
each sublot or lot of material must have ___ random test locations. - Answer
three.
Report percentage compaction to the closest __________%. - Answer: 0.1
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