Aci Concrete Field Technician - Grade 1 Exam Questions With 100% Correct Answers ( A+ Graded Latest Update 2024/2025).

18. The concrete sample must be protected from contamination and _____. {Ans: Rapid evaporation}74. The sample of concrete for use in making the slump test must be obtained in accordance with ASTM Standard _____. {Ans: C172, Standard Practice for Sampling Freshly Mixed Concrete}27. Field Curing is the curing method used when test specimens are to be used for __________. {Ans: Determination of whether the structure is capable of being put into service; Comparison with standard cured specimens test results or with results from various in-place test methods; Adequacy of curing and protection of concrete in the Structure, or Form or shoring removal time requirements}12. At the end of the procedure, the air meter is _____. {Ans: Disassembled and its contents examined}42. If portions of undisturbed concrete are found in the air meter at the end of the test, _____. {Ans: The test is invalid}114. What is the specified weight of the mallet used on measures that are 0.5 ft^3 [14 L] or smaller? {Ans: 1.25 +- 0.50 lb. [600 +- 200 g]}