1
ACI Written Exam Questions and
Correct Answers Latest 2026-2027.
Graded A
a 6 in by 12 in cylinder mold can be used for concrete containing aggregate
with particles not exceeding _____ in size, without the need for wet sieving
concrete - ANS2 in (50 mm)
A composite sample of concrete is required even if the only purpose for
obtaining the sample is to determine temp. - ANSfalse
A mallet weighing ____ must be used to tap the sides of the bowl after
rodding each layer - ANS1.25 +-.5 lb
A max temp of concrete is specified in ASTM C1064 - ANSFalse
A plastic container can be used for the measure in this method - ANSFalse
According to the ASTM C1064 what is one reason to take the temp of
concrete - ANSverify conformance to a specified requirement for temp
After completing the strike off procedure, what must be done before
weighing the measure and the sample - ANSClean off any excess concrete
1
, 2
After consolidation of the final layer, an excess of concrete _______ above
the top of the measure is considered optimum - ANS1/8 in(3mm)
After final rodding the sides of the mold should be tapped lightly -
ANSFalse
After molding test specimens, you should wait two hours before moving
them to the location of initial storage - ANSfalse (the specimens must be
moved immediately)
After temp of concrete is read, what then is required - ANSreporting of
temp
air meter bowls used for this test must conform to ASTM _____ and be
calibrated for volume according to ASTM - ANSC231, C29
ASTM Method C31 gives standardized rquirements for ____, ____, ____,
and ____ of test specimens - ANSmaking, curing, protecting and
transporting
At the end of the procedure the air meter is - ANSdisassembled and its
contents are examined
Concrete mixtures with spec strengths of 600 psi or greater shall have an
initial curing temp between - ANS68 and 78 degrees F (20 and 26 C)
2
, 3
Concrete samples from a truck mixer must be obtained before any water or
admixtures are added to the mixer at the job site - ANSFalse
Cylinders made for the purpose of determining when a structure may be
put into service shall be removed form the molds - ANSat the time of
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
During transportation, test specimens must be protected form damage due
to _____, ______ and ______ - ANSJarring, freezing temps, moisture loss
Each layer should fill approx ____ volume of the mold - ANSOne third
Field curing is the curing method used for when - ANSDetermination of
whether structure is capable of being put into service
for a measure of 0.5ft^3 what is the required number of strokes of the
tamping rod for consolidation of each later - ANS25
For concrete with a slump of less than 1 in ( 25mm) - ANSvibration
For cylinders with a diameter of 6 in or greater the tamping rod must be a
round, straight steel rod with a diameter - ANS5/8 in +-1/16 in (16mm +-
2mm)
3
ACI Written Exam Questions and
Correct Answers Latest 2026-2027.
Graded A
a 6 in by 12 in cylinder mold can be used for concrete containing aggregate
with particles not exceeding _____ in size, without the need for wet sieving
concrete - ANS2 in (50 mm)
A composite sample of concrete is required even if the only purpose for
obtaining the sample is to determine temp. - ANSfalse
A mallet weighing ____ must be used to tap the sides of the bowl after
rodding each layer - ANS1.25 +-.5 lb
A max temp of concrete is specified in ASTM C1064 - ANSFalse
A plastic container can be used for the measure in this method - ANSFalse
According to the ASTM C1064 what is one reason to take the temp of
concrete - ANSverify conformance to a specified requirement for temp
After completing the strike off procedure, what must be done before
weighing the measure and the sample - ANSClean off any excess concrete
1
, 2
After consolidation of the final layer, an excess of concrete _______ above
the top of the measure is considered optimum - ANS1/8 in(3mm)
After final rodding the sides of the mold should be tapped lightly -
ANSFalse
After molding test specimens, you should wait two hours before moving
them to the location of initial storage - ANSfalse (the specimens must be
moved immediately)
After temp of concrete is read, what then is required - ANSreporting of
temp
air meter bowls used for this test must conform to ASTM _____ and be
calibrated for volume according to ASTM - ANSC231, C29
ASTM Method C31 gives standardized rquirements for ____, ____, ____,
and ____ of test specimens - ANSmaking, curing, protecting and
transporting
At the end of the procedure the air meter is - ANSdisassembled and its
contents are examined
Concrete mixtures with spec strengths of 600 psi or greater shall have an
initial curing temp between - ANS68 and 78 degrees F (20 and 26 C)
2
, 3
Concrete samples from a truck mixer must be obtained before any water or
admixtures are added to the mixer at the job site - ANSFalse
Cylinders made for the purpose of determining when a structure may be
put into service shall be removed form the molds - ANSat the time of
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
During transportation, test specimens must be protected form damage due
to _____, ______ and ______ - ANSJarring, freezing temps, moisture loss
Each layer should fill approx ____ volume of the mold - ANSOne third
Field curing is the curing method used for when - ANSDetermination of
whether structure is capable of being put into service
for a measure of 0.5ft^3 what is the required number of strokes of the
tamping rod for consolidation of each later - ANS25
For concrete with a slump of less than 1 in ( 25mm) - ANSvibration
For cylinders with a diameter of 6 in or greater the tamping rod must be a
round, straight steel rod with a diameter - ANS5/8 in +-1/16 in (16mm +-
2mm)
3
