ACI ACTUAL EXAM PAPER 2026
QUESTIONS WITH SOLUTIONS GRADED A+
◉When it is necessary to wet sieve the concrete sample, wet sieving
should be performed after the individual samples are remixed into a
composite sample (T or F). Answer: F
◉Tests for slump, temperature, and air content must begin within
______ minutes after obtaining the composite sample. Answer: 5
minutes
◉Begin molding test specimens within ______ minutes after obtaining
the composite sample. Answer: 15 minutes
◉The concrete samples should be protected from. Answer: the sun,
wind, and other sources of rapid evaporation, from contamination
◉When test specimens are to be molded, the minimum size of
sample obtained is. Answer: 28 L (1 ft^3)
◉The primary objective of the sampling process is to obtain a
representative sample (T or F). Answer: T
, ◉When sampling from a revolving drum truck mixer collect
concrete from ______ portions of the batch. Answer: 2 or more
◉Wet sieving is performed. Answer: when the concrete contains
aggregates larger than appropriate for a test
◉When sampling from a paving mixer it is not acceptable to place 3
small containers on the sub grade in order to obtain the required
samples of concrete (T or F). Answer: F
◉TEMPERATURE. Answer:
◉it may require up to ___ min before the temp stabilizes when the
NMS of the coarse agg is greater than ___. Answer: 20min., 3in.
◉The container for the concrete shall be large enough to provide at
least ___ inches, or _____ of coarse agg, of concrete in all directions
around the TMD. Answer: 3in., 3 x NMS
◉The temperature measuring device shall have the capability of
measuring the temperature of the freshly mixed concrete to ± ______
oF accuracy and have a
range of ______ to ______ oF.. Answer: 1,30to120
QUESTIONS WITH SOLUTIONS GRADED A+
◉When it is necessary to wet sieve the concrete sample, wet sieving
should be performed after the individual samples are remixed into a
composite sample (T or F). Answer: F
◉Tests for slump, temperature, and air content must begin within
______ minutes after obtaining the composite sample. Answer: 5
minutes
◉Begin molding test specimens within ______ minutes after obtaining
the composite sample. Answer: 15 minutes
◉The concrete samples should be protected from. Answer: the sun,
wind, and other sources of rapid evaporation, from contamination
◉When test specimens are to be molded, the minimum size of
sample obtained is. Answer: 28 L (1 ft^3)
◉The primary objective of the sampling process is to obtain a
representative sample (T or F). Answer: T
, ◉When sampling from a revolving drum truck mixer collect
concrete from ______ portions of the batch. Answer: 2 or more
◉Wet sieving is performed. Answer: when the concrete contains
aggregates larger than appropriate for a test
◉When sampling from a paving mixer it is not acceptable to place 3
small containers on the sub grade in order to obtain the required
samples of concrete (T or F). Answer: F
◉TEMPERATURE. Answer:
◉it may require up to ___ min before the temp stabilizes when the
NMS of the coarse agg is greater than ___. Answer: 20min., 3in.
◉The container for the concrete shall be large enough to provide at
least ___ inches, or _____ of coarse agg, of concrete in all directions
around the TMD. Answer: 3in., 3 x NMS
◉The temperature measuring device shall have the capability of
measuring the temperature of the freshly mixed concrete to ± ______
oF accuracy and have a
range of ______ to ______ oF.. Answer: 1,30to120
