Aci - Aggregate Base Testing Technician
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. 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
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- May 1, 2024
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- 2023/2024
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