ACI Aggregate Testing Technician - Level 1 -
Section 3 Questions And Answers.
During this test method, water-soluble materials, clay particles, and
incidental aggregate particles are removed from the aggregate. True
or False? - (Correct Answer) True
Of the two possible test procedures, Procedure A is to be used
unless otherwise specified. True or False? - (Correct Answer) True
In one of the methods only ____ is used for washing and in the other
method a ____ is used as well. - (Correct Answer) Water, wetting
agent
The purpose of using a wetting agent is to ____ finer than the 75 μm
sieve from the coarser material. - (Correct Answer) Loosen material
Dry sieving separates out the finer particles more effectively than
wet sieving. True or False? - (Correct Answer) False; wet sieving
works better
The kinds of materials that respond well to wetting agents include
____ coatings, coatings on aggregates that have been extracted from
mixtures. - (Correct Answer) Clay, bituminous
Complete the list of equipment needed to carry out the procedures:
a) a balance or scale
Section 3 Questions And Answers.
During this test method, water-soluble materials, clay particles, and
incidental aggregate particles are removed from the aggregate. True
or False? - (Correct Answer) True
Of the two possible test procedures, Procedure A is to be used
unless otherwise specified. True or False? - (Correct Answer) True
In one of the methods only ____ is used for washing and in the other
method a ____ is used as well. - (Correct Answer) Water, wetting
agent
The purpose of using a wetting agent is to ____ finer than the 75 μm
sieve from the coarser material. - (Correct Answer) Loosen material
Dry sieving separates out the finer particles more effectively than
wet sieving. True or False? - (Correct Answer) False; wet sieving
works better
The kinds of materials that respond well to wetting agents include
____ coatings, coatings on aggregates that have been extracted from
mixtures. - (Correct Answer) Clay, bituminous
Complete the list of equipment needed to carry out the procedures:
a) a balance or scale
