Question 1
A concrete contractor is estimating the concrete volume required for a building slab measuring 40 feet wide by 60 feet long with a specified thickness of 6 inches. Allowing a 10% waste factor for subgrade irregularities and spillage, how many cubic yards of concrete should be ordered?
Correct Answer:
48.9 cu yd
Question 2
A continuous perimeter footing has a total centerline length of 200 linear feet, a width of 24 inches, and a depth of 12 inches. If a 5% waste factor is included in the material takeoff, what is the total volume of concrete required?
Correct Answer:
15.6 cu yd
Question 3
A concrete foundation plan requires 1,200 linear feet of #5 reinforcing steel. Standard #5 rebar weighs 1.043 lbs per linear foot. What is the total estimated weight of the required rebar (excluding lap splices)?
Correct Answer:
1,252 lbs
Question 4
An estimator must calculate the total concrete volume for 16 circular pier columns. Each pier is 24 inches in diameter and 10 feet deep. What is the total concrete volume needed for all 16 piers (net volume without waste)?
Correct Answer:
18.6 cu yd
Question 5
A concrete wall is 120 feet long and 8 feet high. If formwork is required on both sides of the wall, what is the total contact surface area of formwork that must be estimated in square feet?
Correct Answer:
1,920 sq ft
Question 1
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Prepare with the AZ ROC C-9 Concrete Practice Questions - Arizona ROC C-9 CR-9 R-9 Concrete Examination Exam practice quiz. This question bank includes 100 questions covering concrete, feet, minimum, wall, and rebar. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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AZ ROC C-9 Concrete Practice Questions - Arizona ROC C-9 CR-9 R-9 Concrete Examination Exam

This practice set contains 100 questions from the matching question bank and focuses on concrete, feet, minimum, wall, and rebar. 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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