General Contractor Practice Exam

What size rebar and larger is required to take extra care to make sure it is enclosed?

1. #3

2. #4

3. #5

4. #6

The correct answer is: #5

The requirement to take extra care to ensure that rebar is enclosed typically pertains to larger sizes due to their increased strength and responsibility in structural applications. In many building codes and practices, certain sizes of rebar, starting from #5 and larger, often require special attention to ensure proper encapsulation within concrete. This is due to their significant roles in tensioning and resisting forces within structural elements. Using rebar that is #5 and larger means that these pieces are often used in critical areas where they bear substantial loads. Proper enclosure is essential to maintain structural integrity, avoid corrosion, and ensure that the rebar effectively contributes to the strength of the concrete element. Thus, while smaller sizes may also require enclosure, it's the larger sizes—like #5—that are emphasized for meticulous handling to meet safety and performance standards in construction practices.