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ACI Concrete Field Testing Technician
- Grade I Questions and Verified
Answers. Newest 2026-2027. Rated A
A composite sample of concrete is required even if the only purpose for
obtaining the sample is to determine temp. T/F - ANSFalse
A max. temp. of freshly mixed concrete is specified in ASTM C1064. T/F -
ANSFalse
A plastic container can be used for the measure in this method. T/F -
ANSFalse
According to ASTM C1064, what is one reason to take the temperature of
concrete? - ANSto verify conformance to a specific requirement.
After completing the strike-off procedure, what must be done before
weighing the measure and sample? - ANSClean excess concrete.
After consolidation of the final layer, and excess of concrete __ above the
top of the measure is considered optimum. - ANS1/8"
After the final rodding, the sides of the slump mold should be tapped lightly
with the tamping rod. T/F - ANSFalse
1
, 2
After the temperature of the concrete is read, what is then required? -
ANSReporting of temp.
Concrete samples from a truck mixer will be obtained before any water or
admixtures are added to the mixer at the job site. T/F - ANSFalse
Each layer should fill approximately __ the volume of the mold. - ANS1/3
For a measure of .5 ft3, what is the required number of strokes for tamping
rod for consolidation of each layer? - ANS25
For use in the slump test, the end or both ends of the tamping rod must be
__. - ANSRounded
How deep should the tamping rod penetrate into each layer? - ANSFully &
1" into previous layer.
How long must the temperature measuring device remain in the freshly
mixed concrete? - ANSAt least 2 min., no longer than 5 min.
How much time is allowed for lifting the slump mold? - ANS5 +/- 2 seconds
How much time is allowed to conduct the slump test from beginning to the
end? - ANS2.5 min.
2
ACI Concrete Field Testing Technician
- Grade I Questions and Verified
Answers. Newest 2026-2027. Rated A
A composite sample of concrete is required even if the only purpose for
obtaining the sample is to determine temp. T/F - ANSFalse
A max. temp. of freshly mixed concrete is specified in ASTM C1064. T/F -
ANSFalse
A plastic container can be used for the measure in this method. T/F -
ANSFalse
According to ASTM C1064, what is one reason to take the temperature of
concrete? - ANSto verify conformance to a specific requirement.
After completing the strike-off procedure, what must be done before
weighing the measure and sample? - ANSClean excess concrete.
After consolidation of the final layer, and excess of concrete __ above the
top of the measure is considered optimum. - ANS1/8"
After the final rodding, the sides of the slump mold should be tapped lightly
with the tamping rod. T/F - ANSFalse
1
, 2
After the temperature of the concrete is read, what is then required? -
ANSReporting of temp.
Concrete samples from a truck mixer will be obtained before any water or
admixtures are added to the mixer at the job site. T/F - ANSFalse
Each layer should fill approximately __ the volume of the mold. - ANS1/3
For a measure of .5 ft3, what is the required number of strokes for tamping
rod for consolidation of each layer? - ANS25
For use in the slump test, the end or both ends of the tamping rod must be
__. - ANSRounded
How deep should the tamping rod penetrate into each layer? - ANSFully &
1" into previous layer.
How long must the temperature measuring device remain in the freshly
mixed concrete? - ANSAt least 2 min., no longer than 5 min.
How much time is allowed for lifting the slump mold? - ANS5 +/- 2 seconds
How much time is allowed to conduct the slump test from beginning to the
end? - ANS2.5 min.
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