ACI- Concrete Field-Testing Technician - Grade 1 {latest update} questions and answers 100% correct

ACI- Concrete Field-Testing Technician -
Grade 1 {latest 2026 -2027 update}
questions and answers 100% correct


Q1. Start molding specimens for strength tests within 30 minutes after fabricating the


composite sample.




A. True


B. False - correct 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 - correct 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.




A. True


B. False - correct 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 - correct answer A. True




ASTM C172- Para (6.1)




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




A. True


B. False - correct 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.




A. True


B. False - correct answer B. False




ASTM C172-Para (5). NOTE 2—Sampling should normally be performed as the concrete


is delivered from the mixer.




To the conveying vehicle used to transport the