Framing & StructuralCâu 339 / 700
Compared with solid-sawn joists, why are field notches and unauthorized holes especially damaging to engineered wood products such as I-joists and LVL?
a.They are made of steel
b.They are unaffected by cuts
c.Their strength depends on thin engineered flanges/laminations, so unauthorized cuts remove critical load-carrying material
d.They gain strength when cut
Giải thích
Engineered products concentrate their strength in thin, carefully placed flanges and laminations, so an unauthorized notch or hole removes exactly the material carrying the load and can cause sudden failure, unlike solid lumber that has some reserve. They are not steel, are certainly affected by cuts, and never gain strength from cutting.
Trích dẫn luật: 2025 CA Residential Code §R502.8Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- Where a concentrated load (such as a post from above) bears down over an I-joist at a support, what is often installed to carry that load past the joist without crushing it?
- CALCULATION: An engineered LVL header is specified as a 3-1/2 inch wide member built up from plies that are each 1-3/4 inch thick. How many plies are laminated together?
- Engineered rim board is often chosen over solid sawn lumber at the perimeter of an I-joist floor mainly because it:
- On braced/shear walls, code requires a plate washer at each anchor bolt between the sill plate and nut. A common minimum size is:
- For a bolted sill plate, the code requires a minimum number of anchor bolts per plate piece and a limit on bolt distance from plate ends. Which statement is correct?
- CALCULATION: A sill plate on a 30-foot wall uses anchor bolts spaced at the 6-foot maximum, with a bolt required near each end. Approximately how many anchor bolts are needed along that wall?
Cập nhật gần nhất: · quy trình kiểm tra
Đội Ngũ Biên Tập PrepPass · Đối chiếu với California CSLB General Building (B) Trade Examination · Quy trình kiểm tra