Question 1
A contractor is estimating concrete for a slab-on-grade measuring 40 feet wide by 60 feet long and 6 inches thick. Factoring in an industry-standard 10% waste allowance, how many cubic yards of concrete must be ordered?
Correct Answer:
48.9 cubic yards of concrete
Question 2
A continuous perimeter footing measures 250 linear feet in total length, 18 inches wide, and 12 inches deep. Including a 5% waste allowance, what total volume of concrete should be estimated?
Correct Answer:
14.6 cubic yards of concrete
Question 3
A foundation plan calls for 12 cylindrical caissons, each 24 inches in diameter and 8 feet deep. Adding a 5% waste factor, how many cubic yards of concrete are required?
Correct Answer:
11.7 cubic yards of concrete
Question 4
A foundation drawing requires 12 continuous runs of #5 rebar in a 200-foot footing. Each run has 4 lap splices requiring 30 inches of overlap. Knowing #5 rebar weighs 1.043 lbs/ft, what is the total estimated rebar weight?
Correct Answer:
2,628 lbs of reinforcement
Question 5
A concrete mix design contains 564 lbs of Type II Portland cement and 225 lbs of mixing water per cubic yard. What is the calculated water-cement (w/c) ratio of this concrete mix?
Correct Answer:
0.40 water-cement ratio
Question 1
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Prepare with the C-8 Concrete Practice Questions - California CSLB C-8 Concrete Examination Exam practice quiz. This question bank includes 100 questions covering concrete, feet, inches, cubic, and many. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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C-8 Concrete Practice Questions - California CSLB C-8 Concrete Examination Exam

This practice set contains 100 questions from the matching question bank and focuses on concrete, feet, inches, cubic, and many. 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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