Planning & EstimatingCâu 586 / 700
You order 24 pieces of 2x8 lumber, each 16 ft long. Using board-feet = (thickness_in x width_in x length_ft) / 12 per piece, what is the total board footage?
a.384 board-feet
b.512 board-feet
c.6,144 board-feet
d.256 board-feet
Giải thích
Per piece: (2 x 8 x 16) / 12 = 256 / 12 = 21.33 board-feet. Times 24 pieces = 512 board-feet (b). Option (a) uses a 12-ft length by mistake. Option (c) forgets to divide by 12. Option (d) uses only 12 pieces.
Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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