Massachusetts Construction Supervisor License (CSL) Practice Test

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What is the diameter of a #6 re-bar?

1/2 inch
5/8 inch
3/4 inch
7/8 inch

The correct answer is: 3/4 inch

The diameter of a #6 re-bar is 3/4 inch. This is based on the standard sizing for rebar, which is measured by its number designation where each increase in number corresponds to an increase in diameter. Specifically, in the bar numbering system, #6 rebar represents a diameter of 0.750 inches or 3/4 inch. Such knowledge is crucial in construction and engineering, as it affects structural integrity, load-bearing capacity, and overall design. Understanding these specifications allows for better planning and execution of reinforced concrete projects.