ACI Aggregate Testing Technician - Level 1 - Section 2 All Possible Questions and Answers with complete solution

ACI Aggregate Testing Technician -
Level 1 - Section 2

If Method B or C is to be used, ____ the sample. - CORRECT ANSWER-Moisten

If Method A is to be used and the sample is wet, ____ the sample. - CORRECT
ANSWER-Dry

Method C, miniature stockpiling, cannot be used for ____ or mixtures of coarse and fine
aggregate. - CORRECT ANSWER-Coarse aggregates

Method ____ involves the use of chutes, holding receptacles, and hoppers or
straightedge pans. - CORRECT ANSWER-A

Sample splitters must have ____ equal width chutes for coarse aggregate and ____ for
fine aggregate. - CORRECT ANSWER-8, 12

The differences or variations in the procedures of Method B are based on the ____ of
the floor surface. - CORRECT ANSWER-Evenness

Unless the procedures recommended here are carried out precisely, a ____ sample can
result. - CORRECT ANSWER-Nonrepresentative

Generally speaking, small samples are most representative of the total supply. True or
False? - CORRECT ANSWER-False; large samples are more representative

There are some instances in which ____ between the test samples can't be avoided. -
CORRECT ANSWER-Differences

When reduction of the field sample before testing isn't recommended, the ____ field
sample should be tested. - CORRECT ANSWER-Entire

What determines whether large-size particles are equally distributed among test
samples that have been reduced? - CORRECT ANSWER-Laws of chance

Method A, the ____ method, must be used with fine, dry aggregate. - CORRECT
ANSWER-Mechancal·splltter