ACI - Aggregate Base Testing Technician
Exam 2026 Questions and Answers
Testing - Answer -Sampling should be done very carefully because it is as
important as ____________.
Conveyer belts
Transport units
Roadways
Stockpiles - Answer -What are the four sources from which field samples can be
obtained?
contaminated, damaged - Answer -Sampling containers for aggregate samples
should be made so that the contents will not be lost, _____ or _____.
Nonrepresentative sample - Answer -Not using correct procedures for reducing
samples to testing size can result in a _____.
False - Answer -T or F
Generally, small samples are most representative of the total supply.
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, True - Answer -T or F
There are some instances in which differences between test samples can't be
avoided.
Laws of chance - Answer -What determines whether large-size particles are
equally distributed among test samples that have been reduced?
Method A, mechanical splitter - Answer -Which method of reducing a sample must
be used with fine, dry aggregate?
Moisten the sample - Answer -What must be done to the sample if method B or C
is used?
Dry the sample - Answer -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 - Answer -Method C,
miniature stockpiling, cannot be used for which type of aggregate?
Method A - Answer -Which method involves the use of chutes, holding
receptacles, and hoppers or straight-edged pans?
8 - Answer -Sample splitters must have how many equal width chutes for coarse
aggregate?
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
Exam 2026 Questions and Answers
Testing - Answer -Sampling should be done very carefully because it is as
important as ____________.
Conveyer belts
Transport units
Roadways
Stockpiles - Answer -What are the four sources from which field samples can be
obtained?
contaminated, damaged - Answer -Sampling containers for aggregate samples
should be made so that the contents will not be lost, _____ or _____.
Nonrepresentative sample - Answer -Not using correct procedures for reducing
samples to testing size can result in a _____.
False - Answer -T or F
Generally, small samples are most representative of the total supply.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, True - Answer -T or F
There are some instances in which differences between test samples can't be
avoided.
Laws of chance - Answer -What determines whether large-size particles are
equally distributed among test samples that have been reduced?
Method A, mechanical splitter - Answer -Which method of reducing a sample must
be used with fine, dry aggregate?
Moisten the sample - Answer -What must be done to the sample if method B or C
is used?
Dry the sample - Answer -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 - Answer -Method C,
miniature stockpiling, cannot be used for which type of aggregate?
Method A - Answer -Which method involves the use of chutes, holding
receptacles, and hoppers or straight-edged pans?
8 - Answer -Sample splitters must have how many equal width chutes for coarse
aggregate?
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
