ICC Reinforced Concrete Certification Practice Test

An ASTM A615 #7 bar has a diameter of which of the following?

3/4 inch 7/8 inch 1 inch 1 1/4 inch

Correct Answer:

7/8 inch

Explanation:

An ASTM A615 #7 bar corresponds to a diameter of 7/8 inch. The designation system for reinforcing bars, such as ASTM A615, uses a numerical designation that typically reflects the bar's diameter in eighths of an inch. Therefore, to determine the diameter of a #7 bar, you can convert the number to eighths: since the number is 7, the diameter is 7/8 inch. This understanding of the sizing system is crucial for accurately selecting reinforcement for concrete structures.

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