Question

why is a 2 x 6 on edge considered a poor handrail?
○ a 2 x 6 may not be strong enough to support a persons weight
○ it can be difficult to grab
○ when wet, a 2 x 6 can become slippery
○ 2 x 6 boards tend to shrink as the wood dries, leaving exposed slivers
○ there isnt room to get ones hand behind the 2 x 6

question 44
1 pts
spalling and mortar damage near the bottom of an exterior masonry column would likely be the result of
○ eccentric loads
○ frost heave
○ soil erosion
○ freeze/thaw cycles
○ insect or vermin damage

Explanation:

For the first question, a 2x6 on - edge is difficult to grab as a handrail. For the second question, freeze - thaw cycles can cause spalling and mortar damage near the bottom of an exterior masonry column as water seeps in, freezes, expands, and causes damage over time.

Answer:

1. it can be difficult to grab
2. freeze/thaw cycles