If a CMU Wall Is Vertically Reinforced at 16 In on Centers

question 12

Multiple Choice

If a CMU wall is vertically reinforced at 16 in. on centers, which of the following units will you recommend for use in the wall?

• A)Bond beam unit
• B)H- unit
• C)Sash unit
• D)Standard unit with three webs
• E)A- unit

---

Definitions:

Antibody

A specific protein (immunoglobulin) that recognizes and binds to specific antigens; produced by plasma cells.

Antigen

Any molecule, usually a protein or large carbohydrate, that is specifically recognized as foreign by cells of the immune system.

Chronic Inflammation

A long-term inflammatory response that can result from failure to eliminate a cause of acute inflammation or an autoimmune response.

Prolonged Infections

Infections that persist for a longer period than usual, often due to the inability of the immune system to clear the pathogen.