Author Question: Hollow masonry walls are built of _____. A) tied wythes with a space between them B) units with ... (Read 77 times)

cmoore54 · **on:** Jul 24, 2018

Hollow masonry walls are built of _____.

A) tied wythes with a space between them
B) units with more than 25 percent of their surface hollow
C) different materials in the facing and backing wythes
D) units with less than 25 percent of their surface hollow

Question 2

Mortar used in the restoration of old buildings contains only _____.

A) lime, water, and sand
B) cement, water, and lime
C) cement, sand, and lime
D) cement, water, and sand