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ACI - AGGREGATE BASE TESTING TECHNICIAN EXAM QUESTIONS WITH COMPLETE SOLUTIONS
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ACI - AGGREGATE BASE TESTING TECHNICIAN EXAM QUESTIONS WITH COMPLETE SOLUTIONS Testing Sampling should be done very carefully because it is as important as ____________. Conveyer belts Transport units Roadways Stockpiles What are the four sources from which field samples can be obtained? ...

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  • May 1, 2024
  • 7
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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  • aci aggregate base testing technician exam ques

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ACI - AGGREGATE BASE TESTING TECHNICIAN EXAM
QUESTIONS WITH COMPLETE SOLUTIONS

Testing
Sampling should be done very carefully because it is as important as ____________.
Conveyer belts
Transport units
Roadways
Stockpiles
What are the four sources from which field samples can be obtained?
contaminated, damaged
Sampling containers for aggregate samples should be made so that the contents will
not be lost, _____ or _____.
Nonrepresentative sample
Not using correct procedures for reducing samples to testing size can result in a _____.
False
T or F
Generally, small samples are most representative of the total supply.
True
T or F
There are some instances in which differences between test samples can't be avoided.
Laws of chance
What determines whether large-size particles are equally distributed among test
samples that have been reduced?
Method A, mechanical splitter
Which method of reducing a sample must be used with fine, dry aggregate?
Moisten the sample
What must be done to the sample if method B or C is used?

, Dry the sample
What do you do if the sample is wet and Method A is to be used?
Coarse aggregate, or mixtures of coarse and fine aggregate
Method C, miniature stockpiling, cannot be used for which type of aggregate?
Method A
Which method involves the use of chutes, holding receptacles, and hoppers or straight-
edged pans?
8
Sample splitters must have how many equal width chutes for coarse aggregate?
12
Sample splitters must have how many equal width chutes for fine aggregate?
conical pile
In Methods B and C the sample is shoveled into a ____ before it is flattened and
divided.
Canvas blanket or tear resistant tarp
When using Method B, what is an alternate surface that can be used when reducing the
sample?
diagonally opposite
When quartering a sample, retain two _________ quarters and reject the other two.
5, random
In miniature stockpile sampling, obtain the sample by selecting at least ____ increments
of material from ____ locations in the stockpile.
60C/140F
The drying apparatus used for dry preparation of a sample is any suitable device
capable of drying samples at a temperature not exceeding _____.
representative, fines
A suitable sample splitter is one capable of obtaining ____ portions of the sample
without appreciable loss of ____.
110, 60

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