ACI AGGREGATE TESTING TECHNICIAN
FINAL EXAM PAPER QUESTIONS WITH
ANSWERS GRADED A+
●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 or straight-edged pans?
●8. Answer: Sample splitters must have how many equal width
chutes for coarse aggregate?
●12. Answer: Sample splitters must have how many equal width
chutes for fine aggregate?
●conical pile. Answer: In Methods B and C the sample is
shoveled into a ____ before it is flattened and divided.
●Canvas blanket or tear resistant tarp. Answer: When using
Method B, what is an alternate surface that can be used when
reducing the sample?
●diagonally opposite. Answer: When quartering a sample, retain
two _________ quarters and reject the other two.
●5, random. Answer: In miniature stockpile sampling, obtain
the sample by selecting at least ____ increments of material
from ____ locations in the stockpile.
●60*C/140*F. Answer: The drying apparatus used for dry
preparation of a sample is any suitable device capable of drying
samples at a temperature not exceeding _____.
FINAL EXAM PAPER QUESTIONS WITH
ANSWERS GRADED A+
●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 or straight-edged pans?
●8. Answer: Sample splitters must have how many equal width
chutes for coarse aggregate?
●12. Answer: Sample splitters must have how many equal width
chutes for fine aggregate?
●conical pile. Answer: In Methods B and C the sample is
shoveled into a ____ before it is flattened and divided.
●Canvas blanket or tear resistant tarp. Answer: When using
Method B, what is an alternate surface that can be used when
reducing the sample?
●diagonally opposite. Answer: When quartering a sample, retain
two _________ quarters and reject the other two.
●5, random. Answer: In miniature stockpile sampling, obtain
the sample by selecting at least ____ increments of material
from ____ locations in the stockpile.
●60*C/140*F. Answer: The drying apparatus used for dry
preparation of a sample is any suitable device capable of drying
samples at a temperature not exceeding _____.
