Lập kế hoạch & Dự toánCâu 275 / 360
You are doing a material takeoff from an isometric of a bathroom group. The riser drops through one floor and makes three horizontal offsets, each requiring a pair of 90° bends. How many 90° elbows should you count for those offsets alone?
a.3
b.4
c.5
d.6
Giải thích
Each offset uses a pair of 90° bends, and three offsets means 3 × 2 = 6 elbows. Counting fittings directly off the isometric keeps the takeoff accurate. Always tally each fitting type separately so the purchase order matches the drawing.
Luyện miễn phí toàn bộ 360 câu hỏi — không cần đăng ký.
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