ACI Strength Testing Practice Questions - ACI Concrete Strength Testing Technician Exam

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ASTM C39 requires that the diameter of a cylindrical specimen be determined to the nearest _____ by averaging two diameters measured at right angles to each other at about mid-height of the specimen.

0.01 in. (0.25 mm) 0.1 in. (2.5 mm) 0.001 in. (0.025 mm) 1/16 in. (1.6 mm)

Correct Answer:

0.01 in. (0.25 mm)

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