The bending moment in a cantilevered beam is negative. Which of the following statements are true? A. the top fibers are in compression B. the bottom fibers are in compression C. rebar placement should be either at the top or the bottom D. gravity loads are not a factor for negative moment Answer B. the bottom fibers are in compression in a cantilevered beam, so top fibers are in tension which requires rebar placement at the top to resist tension. ARE 4.0 exam prep: SS
The amount of shrinkage, weight, strength, and withdrawal resistance of nails is affected by the moisture content in wood. Wood that is grademarked kiln dry has a maximum moisture content of: A. 15% B. 19% C. 25% D. 30% Answer A. 15%. Dry lumber moisture content cannot exceed 19%. ARE 4.0 exam prep: SS
All 5 requirements that must be satisfied for a valid oral modification to the contract: 1. 2. 3. 4. 5. Answer 1. + work can't have been included in the contract 2. owner ordered the extra work 3. owner had to agree to pay extra 4. contractor didn't voluntarily do the extra work 5. extra work can't be the contractor's own fault. ARE 4.0 exam prep: CDS
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