ACI Concrete Field Testing Technician Grade 1 Exam with Questions and Answers
– 100% Solved
A 6 by 12 in [150 mm by 300 mm] cylinder mold can be used for concrete containing aggregate
with particles not exceeding _____ in size, without the need for wet sieving the concrete. -
✔✔✔-2 in. [50 mm]
A composite sample of concrete is required even if the only purpose for obtaining the sample is
to determine temperature. True of False? - ✔✔✔-False
A mallet weighing ____ must be used to tap the sides of the bowl after rodding each layer. -
✔✔✔-1.25 +- 0.50 lb. (600 +- 200 g)
A maximum temperature of freshly mixed concrete is specified in ASTM C1064. True of False? -
✔✔✔-False
A plastic container can be used for the measure in this method. True or False? - ✔✔✔-False,
measure must be steel or another suitable metal
According to ASTM C1064, what is one reason to take the temperature of concrete? - ✔✔✔-
Verify conformance to a specified requirement for temperature of concrete
After completing the strike-off procedure, what must be done before weighing the measure and
sample? - ✔✔✔-Clean off any excess concrete
After consolidation of the final layer, an excess of concrete ____ above the top of the measure is
considered optimum. - ✔✔✔-1/8 in. [3 mm]
After molding test specimens, you should wait two hours before moving them to the location of
initial storage. True or False? - ✔✔✔-False; the specimens must be moved immediately
,ACI Concrete Field Testing Technician Grade 1 Exam with Questions and Answers
– 100% Solved
After rodding each layer, what should be done to the measure before adding another layer of
concrete? - ✔✔✔-Tap the sides of the measure smartly 10 to 15 times with the mallet
After the final rodding, the sides of the slump mold should should be tapped lightly with the
tamping rod. True or False? - ✔✔✔-False
After the temperature of the concrete is read, what is required? - ✔✔✔-Reporting of
temperature
Air meter bowls used for this test must conform to ASTM _____ and be calibrated for volumee
according to ASTM _____. - ✔✔✔-C231, C29
ASTM Method gives standardized requirements for _____, _____, _____, and _____, of test
specimens. - ✔✔✔-Making, curing, protecting, transporting
At the end of the procedure, the air meter is _____. - ✔✔✔-Disassembled and its contents
examined
Concrete mixtures with specified strengths of 6000 psi [40 MPa] or greater shall have an initial
curing temperature between __________. - ✔✔✔-68 and 78 degrees F [20 and 26 C]
Concrete samples from a truck mixer must be obtained before any water or admixtures are
added to the mixer at the job site. True or False? - ✔✔✔-False
Cylinders made for the purpose of determining when a structure may be put into service shall
be removed from the mold __________. - ✔✔✔-At the time of the removal of formwork
, ACI Concrete Field Testing Technician Grade 1 Exam with Questions and Answers
– 100% Solved
Cylinders that are to be field cured are stored __________ and protected __________. - ✔✔✔-
In or on the structure as near to the point of deposit of the concrete represented as possible; In
as near as possible the same way as the formed work
During transportation, test specimens must be protected from damage due to _____, _____,
and _____. - ✔✔✔-Jarring, freezing temperatures, moisture loss
Each layer should fill approximately _____ the volume of the mold. - ✔✔✔-One-third
Field Curing is the curing method used when test specimens are to be used for __________. -
✔✔✔-Determination of whether the structure is capable of being put into service; Comparison
with standard cured specimens test results or with results from various in-place test methods;
Adequacy of curing and protection of concrete in the Structure, or Form or shoring removal
time requirements
For a measure of 0.5 ft^3 [14 L], what is the required number of strokes of the tamping rod for
consolidation of each layer? - ✔✔✔-25
For concrete with a slump of less than 1 in. [25 mm], the test specimens must be consolidated
by _____. - ✔✔✔-Vibration
For cylinders with a diameter of 6 in. [150 mm] or greater, the tamping rod must be a round,
straight steel rod with a diameter of _____. - ✔✔✔-5/8 +- 1/16 in [16 mm +- 2 mm]
For use in the slump test, the end or both ends of the tamping rod must be _____. - ✔✔✔-
Rounded to a hemispherical tip
How deep should the tamping rod penetrate into each layer? - ✔✔✔-Rod each layer
throughout its depth; on the second and final layers, the rod should penetrate into the previous
layer approximately 1 in. [25 mm]
– 100% Solved
A 6 by 12 in [150 mm by 300 mm] cylinder mold can be used for concrete containing aggregate
with particles not exceeding _____ in size, without the need for wet sieving the concrete. -
✔✔✔-2 in. [50 mm]
A composite sample of concrete is required even if the only purpose for obtaining the sample is
to determine temperature. True of False? - ✔✔✔-False
A mallet weighing ____ must be used to tap the sides of the bowl after rodding each layer. -
✔✔✔-1.25 +- 0.50 lb. (600 +- 200 g)
A maximum temperature of freshly mixed concrete is specified in ASTM C1064. True of False? -
✔✔✔-False
A plastic container can be used for the measure in this method. True or False? - ✔✔✔-False,
measure must be steel or another suitable metal
According to ASTM C1064, what is one reason to take the temperature of concrete? - ✔✔✔-
Verify conformance to a specified requirement for temperature of concrete
After completing the strike-off procedure, what must be done before weighing the measure and
sample? - ✔✔✔-Clean off any excess concrete
After consolidation of the final layer, an excess of concrete ____ above the top of the measure is
considered optimum. - ✔✔✔-1/8 in. [3 mm]
After molding test specimens, you should wait two hours before moving them to the location of
initial storage. True or False? - ✔✔✔-False; the specimens must be moved immediately
,ACI Concrete Field Testing Technician Grade 1 Exam with Questions and Answers
– 100% Solved
After rodding each layer, what should be done to the measure before adding another layer of
concrete? - ✔✔✔-Tap the sides of the measure smartly 10 to 15 times with the mallet
After the final rodding, the sides of the slump mold should should be tapped lightly with the
tamping rod. True or False? - ✔✔✔-False
After the temperature of the concrete is read, what is required? - ✔✔✔-Reporting of
temperature
Air meter bowls used for this test must conform to ASTM _____ and be calibrated for volumee
according to ASTM _____. - ✔✔✔-C231, C29
ASTM Method gives standardized requirements for _____, _____, _____, and _____, of test
specimens. - ✔✔✔-Making, curing, protecting, transporting
At the end of the procedure, the air meter is _____. - ✔✔✔-Disassembled and its contents
examined
Concrete mixtures with specified strengths of 6000 psi [40 MPa] or greater shall have an initial
curing temperature between __________. - ✔✔✔-68 and 78 degrees F [20 and 26 C]
Concrete samples from a truck mixer must be obtained before any water or admixtures are
added to the mixer at the job site. True or False? - ✔✔✔-False
Cylinders made for the purpose of determining when a structure may be put into service shall
be removed from the mold __________. - ✔✔✔-At the time of the removal of formwork
, ACI Concrete Field Testing Technician Grade 1 Exam with Questions and Answers
– 100% Solved
Cylinders that are to be field cured are stored __________ and protected __________. - ✔✔✔-
In or on the structure as near to the point of deposit of the concrete represented as possible; In
as near as possible the same way as the formed work
During transportation, test specimens must be protected from damage due to _____, _____,
and _____. - ✔✔✔-Jarring, freezing temperatures, moisture loss
Each layer should fill approximately _____ the volume of the mold. - ✔✔✔-One-third
Field Curing is the curing method used when test specimens are to be used for __________. -
✔✔✔-Determination of whether the structure is capable of being put into service; Comparison
with standard cured specimens test results or with results from various in-place test methods;
Adequacy of curing and protection of concrete in the Structure, or Form or shoring removal
time requirements
For a measure of 0.5 ft^3 [14 L], what is the required number of strokes of the tamping rod for
consolidation of each layer? - ✔✔✔-25
For concrete with a slump of less than 1 in. [25 mm], the test specimens must be consolidated
by _____. - ✔✔✔-Vibration
For cylinders with a diameter of 6 in. [150 mm] or greater, the tamping rod must be a round,
straight steel rod with a diameter of _____. - ✔✔✔-5/8 +- 1/16 in [16 mm +- 2 mm]
For use in the slump test, the end or both ends of the tamping rod must be _____. - ✔✔✔-
Rounded to a hemispherical tip
How deep should the tamping rod penetrate into each layer? - ✔✔✔-Rod each layer
throughout its depth; on the second and final layers, the rod should penetrate into the previous
layer approximately 1 in. [25 mm]
