Final answer:
The Type III hydrant system receiving strainer usually uses a mesh screen with a size of 1/8 inch to 1/4 inch to prevent debris from entering the system.
Step-by-step explanation:
The Type III hydrant system receiving strainer usually uses a mesh screen with a size of 1/8 inch to 1/4 inch. This mesh size helps to prevent debris and larger particles from entering the system and potentially clogging it.
For example, a Type III hydrant system receiving strainer may have a mesh screen size of 1/8 inch, which means the openings in the mesh are 1/8 inch wide. Similarly, a mesh screen size of 1/4 inch means the openings are 1/4 inch wide.
By using a mesh screen, the strainer can effectively filter out larger particles while allowing water to pass through, ensuring the proper functioning of the Type III hydrant system.