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ACI WRITTEN TEST EXAM 2024 -2025 MOST
TESTED COMPLETE QUESTIONS WITH DETAILED
VERIFIED ANSWERS (100% CORRECT ANSWERS) /
ALREADY GRADED A+
The total time allowed between obtaining the first and final portions of a
composite sample is - (answers)15 minutes
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) - (answers)F
Tests for slump, temperature, and air content must begin within ______
minutes after obtaining the composite sample - (answers)5 minutes
Begin molding test specimens within ______ minutes after obtaining the
composite sample - (answers)15 minutes
The concrete samples should be protected from - (answers)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 - (answers)28 L (1 ft^3)
The primary objective of the sampling process is to obtain a representative
sample (T or F) - (answers)T
When sampling from a revolving drum truck mixer collect concrete from
______ portions of the batch - (answers)2 or more
, 2
Wet sieving is performed - (answers)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) - (answers)F
TEMPERATURE - (answers)
it may require up to ___ min before the temp stabilizes when the NMS of the
coarse agg is greater than ___ - (answers)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 -
(answers)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. - (answers)1,30to120
A composite sample of concrete is not required even if the only purpose for
obtaining the sample is to determine temperature. T or F - (answers)T
The Temperature Measuring Device used for determining concrete
temperature must be calibrated ______ or whenever there is a question of
accuracy. - (answers)annually
ACI WRITTEN TEST EXAM 2024 -2025 MOST
TESTED COMPLETE QUESTIONS WITH DETAILED
VERIFIED ANSWERS (100% CORRECT ANSWERS) /
ALREADY GRADED A+
The total time allowed between obtaining the first and final portions of a
composite sample is - (answers)15 minutes
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) - (answers)F
Tests for slump, temperature, and air content must begin within ______
minutes after obtaining the composite sample - (answers)5 minutes
Begin molding test specimens within ______ minutes after obtaining the
composite sample - (answers)15 minutes
The concrete samples should be protected from - (answers)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 - (answers)28 L (1 ft^3)
The primary objective of the sampling process is to obtain a representative
sample (T or F) - (answers)T
When sampling from a revolving drum truck mixer collect concrete from
______ portions of the batch - (answers)2 or more
, 2
Wet sieving is performed - (answers)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) - (answers)F
TEMPERATURE - (answers)
it may require up to ___ min before the temp stabilizes when the NMS of the
coarse agg is greater than ___ - (answers)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 -
(answers)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. - (answers)1,30to120
A composite sample of concrete is not required even if the only purpose for
obtaining the sample is to determine temperature. T or F - (answers)T
The Temperature Measuring Device used for determining concrete
temperature must be calibrated ______ or whenever there is a question of
accuracy. - (answers)annually
