ACI CONCRETE STRENGTH TESTING TECHNICIAN SAMPLE WRITTEN EXAM QUESTIONS WITH CORRECT ANSWERS 2025/2026

ACI CONCRETE STRENGTH TESTING TECHNICIAN
SAMPLE WRITTEN EXAM QUESTIONS WITH
CORRECT ANSWERS 2025/2026

These procedures for capping enable concrete cylinders and cores to meet the standard's
requirements for: a) planeness b)strength c) perpendicularity d) B and C e) A and C - CORRECT
ANSWER -E)



The strength of the neat hydraulic cement paste used for capping cylinders depends on: a) the
water/cement ratio b) time c) its consistency d) the type of cement e) all of the above -
CORRECT ANSWER -E)



The maximum allowable depth of depressions in the ends of cylinders that need not be sawed
or ground in: a) 5 mm [0.20 in.] b) 6 mm [0.24 in.] c) 8 mm [0.31 in.] d) 9 mm [0.35 in.] -
CORRECT ANSWER -A)



Practie C1231/C1231M contains step-by-step procedures for aligning the specimens in the
testing machine through initial application of the load: a) True b) False - CORRECT ANSWER -B)



This test method consists of applying a compressive axial load to molded cylinders or cores at a
rate which is within a prescribed range until failure occurs: a) True b) False - CORRECT ANSWER -
A)



The percent error for loads used in the testing machine should not exceed ___ percent of the
indicated load: a) +/- 0.05% b) +/- 1.0% c) +/- 0.5% d) +/- 1.5% e) +/- 2.0% - CORRECT ANSWER -
B)



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