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

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About this Exam

Prepare with the ACI Strength Testing Practice Questions - ACI Concrete Strength Testing Technician Exam practice quiz. This question bank includes 100 questions covering astm, c39m, cylinder, specimen, and loading. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

Sample Questions

Question 1
Under ASTM C39/C39M, what is the specified loading rate for testing hardened concrete cylinders during the second half of the anticipated loading phase?
35 ± 7 psi/s (0.25 ± 0.05 MPa/s)
15 ± 5 psi/s (0.10 ± 0.03 MPa/s)
60 ± 10 psi/s (0.40 ± 0.07 MPa/s)
100 ± 20 psi/s (0.70 ± 0.14 MPa/s)
Question 2
A 6 in. × 12 in. concrete cylinder tested per ASTM C39 fails at a maximum load of 113,100 lbf. What is the compressive strength, rounded to the nearest 10 psi?
4,000 psi
3,140 psi
5,020 psi
4,500 psi
Question 3
In ASTM C39/C39M, a fracture pattern described as 'reasonably well-formed cones on both ends, less than 1 in. of cracking through caps' corresponds to which fracture type?
Type 1
Type 2
Type 3
Type 4
Question 4
Per ASTM C39/C39M, if a tested cylinder has a length-to-diameter (L/D) ratio of 1.75, which correction factor must be applied to the calculated compressive strength?
0.98
0.96
0.93
0.87
Question 5
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)

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

This practice set contains 100 questions from the matching question bank and focuses on astm, c39m, cylinder, specimen, and loading. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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Frequently Asked Questions

This quiz contains a total of 100 practice questions carefully selected to test your knowledge on this subject.
Yes, you will have exactly 0 minutes to complete the exam. A countdown timer will be visible once you start.
Yes, you can retake this practice test as many times as you need. The questions and options may be randomized on subsequent attempts to ensure comprehensive learning.

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