(24) What are the four common methods of blocking and bracing?
a. Strapping, framing, bolting, and fiberboard.
b. Shielding, mounting, constructing, and framing.
c. Brackets, frames, plywood, and lumber.
d. Wood, metal, bolts, and nails.
(25) Lumber used for blocking and bracing, does not meet this requirement.
a. Moisture content between 12 and 19 percent.
b. Free from cross grain and knots.
c. Absorbs shocks due to impact.
d. Center knots not greater than one-fourth the width of the piece of lumber.
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