ACI AGGREGATE TESTING TECHNICIAN
EXAM QUESTIONS AND ANSWERS 100
PERCENT PASS UPDATED REVIEW PAPER
QUESTIONS AND CORRECT ANSWERS
GRADED A+
⩥ The _____ or _____ should obtain samples related to the control of
production at the source or related to the control of the work at the site.
Answer: Manufacturers, contractors
⩥ Samples to be tested for quality should, when possible, be obtained
from the _____. Answer: Finished product
⩥ (D75) Sampling containers for aggregate samples should be made so
that the contents will not be lost, ____ or ___. Answer: Contaminated or
damaged
⩥ The reason it is difficult to obtain unbiased samples from stockpiles is
because coarse and fine particles become segregated. True or False?
Answer: True
⩥ ____ can help in obtaining accurate samples from stockpiles. Answer:
Power equipment
, ⩥ (D75)What are the four sources from which field samples can be
obtained? Answer: Conveyer belts
Transport units
Roadways
Stockpiles
⩥ Not using correct procedures for reducing samples to testing size can
result in a _____. Answer: Nonrepresentative sample
⩥ T or F
Generally, small samples are most representative of the total supply.
Answer: False
⩥ T or F
There are some instances in which differences between test samples
can't be avoided. Answer: True
⩥ What determines whether large-size particles are equally distributed
among test samples that have been reduced? Answer: Laws of chance
⩥ Which method of reducing a sample must be used with fine, dry
aggregate? (C702) Answer: Method A, mechanical splitter
EXAM QUESTIONS AND ANSWERS 100
PERCENT PASS UPDATED REVIEW PAPER
QUESTIONS AND CORRECT ANSWERS
GRADED A+
⩥ The _____ or _____ should obtain samples related to the control of
production at the source or related to the control of the work at the site.
Answer: Manufacturers, contractors
⩥ Samples to be tested for quality should, when possible, be obtained
from the _____. Answer: Finished product
⩥ (D75) Sampling containers for aggregate samples should be made so
that the contents will not be lost, ____ or ___. Answer: Contaminated or
damaged
⩥ The reason it is difficult to obtain unbiased samples from stockpiles is
because coarse and fine particles become segregated. True or False?
Answer: True
⩥ ____ can help in obtaining accurate samples from stockpiles. Answer:
Power equipment
, ⩥ (D75)What are the four sources from which field samples can be
obtained? Answer: Conveyer belts
Transport units
Roadways
Stockpiles
⩥ Not using correct procedures for reducing samples to testing size can
result in a _____. Answer: Nonrepresentative sample
⩥ T or F
Generally, small samples are most representative of the total supply.
Answer: False
⩥ T or F
There are some instances in which differences between test samples
can't be avoided. Answer: True
⩥ What determines whether large-size particles are equally distributed
among test samples that have been reduced? Answer: Laws of chance
⩥ Which method of reducing a sample must be used with fine, dry
aggregate? (C702) Answer: Method A, mechanical splitter
