ACI – CONCRETE FIELD-TESTING TECHNICIAN GRADE 1 (UPDATED 2025/2026) – EXAM QUESTIONS & VERIFIED ANSWERS WITH COMPLETE SOLUTIONS – GRADED A+ – INSTANT PDF DOWNLOAD

ACI CONCRETE FIELD TESTING TECHNICIAN - GRADE I EXAM| ALL 133
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Q1. Start molding specimens for strength tests within 30 minutes after fabricating the
composite sample.



A. True

B. False - ANSWER: B. False



ASTM C172 -Para (4.1.2) - Start molding.

specimens for strength tests within 15 min after fabricating the

composite sample.



Q2. The maximum allowable time between obtaining the first and last portions of the
composite sample may not exceed 5 minutes.



A. True

B. False - ANSWER: B. False



ASTM C172 - Para (4.1)- The elapsed time shall not exceed 15 min. between obtaining
the first and final portions of the composite sample.



Q3. The composite concrete sample must be protected from sun, wind, contamination
and rapid evaporation.

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A. True

B. False - ANSWER: A. True



ASTM C172 - Para (4.1.2)



Q4. If the concrete contains aggregates larger than those that are appropriate for a size of
mold or equipment used, the sample should be wet sieved before making the test.



A. True

B. False - ANSWER: A. True



ASTM C172- Para (6.1)



Q5. The composite sample should not be remixed before beginning any tests.



A. True

B. False - ANSWER: B. False



ASTM C172-Para (4.1.1) -The sample shall be combined and remixed with a shovel the
minimum amount necessary to ensure uniformity and compliance with the maximum
time limits



Q6. Sampling should normally be performed, as the concrete is discharged from the

, mixer.