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ACI Concrete Field Testing Technician-
Grade I Questions and Correct
Answers. Latest 2026-2027 Rated A
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. - ANS2 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? -
ANSFalse
A mallet weighing ____ must be used to tap the sides of the bowl after
rodding each layer. - ANS1.25 +- 0.50 lb. (600 +- 200 g)
A maximum temperature of freshly mixed concrete is specified in ASTM
C1064. True of False? - ANSFalse
A plastic container can be used for the measure in this method. True or
False? - ANSFalse, measure must be steel or another suitable metal
According to ASTM C1064, what is one reason to take the temperature of
concrete? - ANSVerify conformance to a specified requirement for
temperature of concrete
1
, 2
After completing the strike-off procedure, what must be done before
weighing the measure and sample? - ANSClean off any excess concrete
After consolidation of the final layer, an excess of concrete ____ above the
top of the measure is considered optimum. - ANS1/8 in. [3 mm]
After molding test specimens, you should wait two hours before moving
them to the location of initial storage. True or False? - ANSFalse; the
specimens must be moved immediately
After rodding each layer, what should be done to the measure before
adding another layer of concrete? - ANSTap 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? - ANSFalse
After the temperature of the concrete is read, what is required? -
ANSReporting of temperature
Air meter bowls used for this test must conform to ASTM _____ and be
calibrated for volumee according to ASTM _____. - ANSC231, C29
ASTM Method gives standardized requirements for _____, _____, _____,
and _____, of test specimens. - ANSMaking, curing, protecting,
transporting
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, 3
At the end of the procedure, the air meter is _____. - ANSDisassembled
and its contents examined
Concrete mixtures with specified strengths of 6000 psi [40 MPa] or greater
shall have an initial curing temperature between __________. - ANS68 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? -
ANSFalse
Cylinders made for the purpose of determining when a structure may be
put into service shall be removed from the mold __________. - ANSAt the
time of the removal of formwork
Cylinders that are to be field cured are stored __________ and protected
__________. - ANSIn 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 _____. - ANSJarring, freezing temperatures,
moisture loss
Each layer should fill approximately _____ the volume of the mold. -
ANSOne-third
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ACI Concrete Field Testing Technician-
Grade I Questions and Correct
Answers. Latest 2026-2027 Rated A
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. - ANS2 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? -
ANSFalse
A mallet weighing ____ must be used to tap the sides of the bowl after
rodding each layer. - ANS1.25 +- 0.50 lb. (600 +- 200 g)
A maximum temperature of freshly mixed concrete is specified in ASTM
C1064. True of False? - ANSFalse
A plastic container can be used for the measure in this method. True or
False? - ANSFalse, measure must be steel or another suitable metal
According to ASTM C1064, what is one reason to take the temperature of
concrete? - ANSVerify conformance to a specified requirement for
temperature of concrete
1
, 2
After completing the strike-off procedure, what must be done before
weighing the measure and sample? - ANSClean off any excess concrete
After consolidation of the final layer, an excess of concrete ____ above the
top of the measure is considered optimum. - ANS1/8 in. [3 mm]
After molding test specimens, you should wait two hours before moving
them to the location of initial storage. True or False? - ANSFalse; the
specimens must be moved immediately
After rodding each layer, what should be done to the measure before
adding another layer of concrete? - ANSTap 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? - ANSFalse
After the temperature of the concrete is read, what is required? -
ANSReporting of temperature
Air meter bowls used for this test must conform to ASTM _____ and be
calibrated for volumee according to ASTM _____. - ANSC231, C29
ASTM Method gives standardized requirements for _____, _____, _____,
and _____, of test specimens. - ANSMaking, curing, protecting,
transporting
2
, 3
At the end of the procedure, the air meter is _____. - ANSDisassembled
and its contents examined
Concrete mixtures with specified strengths of 6000 psi [40 MPa] or greater
shall have an initial curing temperature between __________. - ANS68 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? -
ANSFalse
Cylinders made for the purpose of determining when a structure may be
put into service shall be removed from the mold __________. - ANSAt the
time of the removal of formwork
Cylinders that are to be field cured are stored __________ and protected
__________. - ANSIn 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 _____. - ANSJarring, freezing temperatures,
moisture loss
Each layer should fill approximately _____ the volume of the mold. -
ANSOne-third
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