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ACI CLTT-2 Practice Questions - ACI Concrete Laboratory Testing Technician - Level 2 Exam

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About this Exam

Prepare with the ACI CLTT-2 Practice Questions - ACI Concrete Laboratory Testing Technician - Level 2 Exam practice quiz. This question bank includes 100 questions covering astm, c192, c157, strength, and concrete. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

Sample Questions

Question 1
Per ASTM C192/C192M, what is the number of rod strokes required per layer when consolidating a standard 150 x 300 mm (6 x 12 in.) concrete cylinder by rodding?
15 strokes per layer
20 strokes per layer
25 strokes per layer
50 strokes per layer
Question 2
According to ASTM C192/C192M, how is the method of consolidation (rodding vs vibration) selected when not specified by the project?
Always rod cylinders and vibrate beams
By slump — rod if slump ≥ 25 mm (1 in.), vibrate if slump < 25 mm (1 in.)
By aggregate size — vibrate if NMSA > 25 mm
By cylinder size only
Question 3
ASTM C192/C192M requires initial curing of molded specimens for the first 24 hours at what temperature range?
10 to 16 °C (50 to 60 °F)
16 to 27 °C (60 to 80 °F)
20 to 30 °C (68 to 86 °F)
23.0 ± 2.0 °C (73.5 ± 3.5 °F)
Question 4
Per ASTM C192/C192M, what temperature is required for the moist room or water tank used for final curing of strength-test specimens?
18.0 ± 2.0 °C (64.4 ± 3.6 °F)
21.0 ± 2.0 °C (70 ± 3.6 °F)
23.0 ± 2.0 °C (73.5 ± 3.5 °F)
27.0 ± 2.0 °C (80.6 ± 3.6 °F)
Question 5
Per ASTM C192/C192M, after a 0.028 m³ (1 ft³) drum batch is mixed, what is the minimum allowed mixing time after all ingredients are in the mixer?
1 minute mixing, 2 minutes rest, 1 minute remix
3 minutes mixing, 3 minutes rest, 2 minutes remix
5 minutes mixing then immediate discharge
10 minutes mixing then 5 minutes rest

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Additional Information

ACI CLTT-2 Practice Questions - ACI Concrete Laboratory Testing Technician - Level 2 Exam

This practice set contains 100 questions from the matching question bank and focuses on astm, c192, c157, strength, and concrete. 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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