ACI - Aggregate Base Testing Technician Test Questions & Answers (A+ Graded 100% Verified)

ACI - Aggregate Base Testing Technician Test Questions & Answers (A+ Graded 100% Verified) 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?