Question

31.3% complete
load is the load or weight the floor must support. spacing refers to the space between joists in inches. span is the length and/or width of supporting floor.
as the spacing between joists increases, the maximum span for any board size:
a. increases only.
b. decreases only.
c. increases and then decreases.
d. decreases and then increases.

Explanation:

By observing the table, as the values representing spacing between joists increase (moving from left - right columns for a fixed load value), the values representing the maximum span for a given board size decrease. For example, when the load is 30, as the spacing values change, the span values get smaller.

Answer:

B. decreases only.