When cross bridging is used to prevent side sway in joists, why is the bottom not nailed to the joists at the
17.
same time as the top? (Para 1-33)
After the baseline for a building layout has been established, what is usually the first step in laying out an
18.
irregularly shaped building? (Para 1-39)
Batter boards are constructed outside the corner stakes of structures. If they are over a certain height they
19.
must be braced. What is this height in feet? (Para 1-40c)
It is best to check the level of a building with a transit. If a transit is not available, what is the next best
20.
means of checking a layout of a building to see if it is approximately level? (Para 1-41e)
1-45
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