ACI AGGREGATE TESTING TECHNICIAN
EXAM QUESTIONS AND ANSWERS 100
PERCENT PASS CERTIFICATION TEST
SCRIPT FULL QUESTIONS AND
SOLUTIONS GRADED A+
⩥ AASHTO T 19 Bulk Density and Voids in Aggregate21. A procedure
for computing the void content is not included in this test procedure.
True or False? Answer: False; % Voids = 100[(SxW)-M]/(SxW)
⩥ AASHTO T 19 Bulk Density and Voids in Aggregate22. The bulk
density of aggregate includes the volume of the voids between the
particles. True or False. Answer: True
⩥ AASHTO T 19 Bulk Density and Voids in Aggregate23. This test
procedure can be used with compacted and loose, wet and dry, fine,
coarse, and mixed aggregates. True or False. Answer: True
⩥ AASHTO T 19 Bulk Density and Voids in Aggregate24. The measure
used to hold the aggregates must be ________ in order to retain its shape
under rough use. Answer: Rigid
,⩥ AASHTO T 104 Soundness of Aggregate1. The purpose of this test is
to estimate the __________ of aggregates when exposed to _________
actions.. Answer: Soundness; weathering
⩥ AASHTO T 104 Soundness of Aggregate
2. The test can be used when data isn't available from exposure to actual
conditions. True or False?. Answer: True
⩥ AASHTO T 104 Soundness of Aggregate
3. The process involved simulates the expansion of ________ when it
_________.. Answer: Water; freezes
⩥ AASHTO T 104 Soundness of Aggregate
4. Results using the two salts (sodium and magnesium sulfate) are
usually quite similar. True or False?. Answer: False; they differ
considerably
⩥ AASHTO T 104 Soundness of Aggregate
5. The solid volume of the samples that are immersed in the salt solution
should be five times the volume of the solution. True or False?. Answer:
, False; the volume of the solution should be 5 times the volume of the
samples.
⩥ AASHTO T 104 Soundness of Aggregate
6. For a sodium sulfate solution, 215 g of anhydrous salt or per liter of
water is recommended. True or False?. Answer: False; this is sufficient
for saturation, but the use of not less than 225g is recommended.
⩥ AASHTO T 104 Soundness of Aggregate
7. To prevent contamination and to reduce evaporation of the solution,
keep it _________ as much as possible.. Answer: Covered
⩥ AASHTO T 104 Soundness of Aggregate
8. Fine aggregate is aggregate which can pass through a 9.5 mm (3/8 in.)
sieve. True or False?. Answer: True
⩥ AASHTO T 104 Soundness of Aggregate
9. Coarse aggregate is aggregate __________ that which passes through
a No. 4 sieve.. Answer: Coarser than
EXAM QUESTIONS AND ANSWERS 100
PERCENT PASS CERTIFICATION TEST
SCRIPT FULL QUESTIONS AND
SOLUTIONS GRADED A+
⩥ AASHTO T 19 Bulk Density and Voids in Aggregate21. A procedure
for computing the void content is not included in this test procedure.
True or False? Answer: False; % Voids = 100[(SxW)-M]/(SxW)
⩥ AASHTO T 19 Bulk Density and Voids in Aggregate22. The bulk
density of aggregate includes the volume of the voids between the
particles. True or False. Answer: True
⩥ AASHTO T 19 Bulk Density and Voids in Aggregate23. This test
procedure can be used with compacted and loose, wet and dry, fine,
coarse, and mixed aggregates. True or False. Answer: True
⩥ AASHTO T 19 Bulk Density and Voids in Aggregate24. The measure
used to hold the aggregates must be ________ in order to retain its shape
under rough use. Answer: Rigid
,⩥ AASHTO T 104 Soundness of Aggregate1. The purpose of this test is
to estimate the __________ of aggregates when exposed to _________
actions.. Answer: Soundness; weathering
⩥ AASHTO T 104 Soundness of Aggregate
2. The test can be used when data isn't available from exposure to actual
conditions. True or False?. Answer: True
⩥ AASHTO T 104 Soundness of Aggregate
3. The process involved simulates the expansion of ________ when it
_________.. Answer: Water; freezes
⩥ AASHTO T 104 Soundness of Aggregate
4. Results using the two salts (sodium and magnesium sulfate) are
usually quite similar. True or False?. Answer: False; they differ
considerably
⩥ AASHTO T 104 Soundness of Aggregate
5. The solid volume of the samples that are immersed in the salt solution
should be five times the volume of the solution. True or False?. Answer:
, False; the volume of the solution should be 5 times the volume of the
samples.
⩥ AASHTO T 104 Soundness of Aggregate
6. For a sodium sulfate solution, 215 g of anhydrous salt or per liter of
water is recommended. True or False?. Answer: False; this is sufficient
for saturation, but the use of not less than 225g is recommended.
⩥ AASHTO T 104 Soundness of Aggregate
7. To prevent contamination and to reduce evaporation of the solution,
keep it _________ as much as possible.. Answer: Covered
⩥ AASHTO T 104 Soundness of Aggregate
8. Fine aggregate is aggregate which can pass through a 9.5 mm (3/8 in.)
sieve. True or False?. Answer: True
⩥ AASHTO T 104 Soundness of Aggregate
9. Coarse aggregate is aggregate __________ that which passes through
a No. 4 sieve.. Answer: Coarser than
