問題詳情

41. If you want to take material from a 0.8 x 1.8 x 15cm waste wood strip to make a smallwood block as shown on the right, the square side length of this wood block is 1.8cm,and the hole in the middle is Ø 5.5mm. Which one is the proper working procedure？


(A) Drill first and then saw
(B) First saw and then drill
(C) Simultaneous sawing and drilling
(D) The order of sawing and drilling does not matter

參考答案

答案：A
難度：計算中-1
書單：沒有書單，新增

用户評論

【孫一千】評論

因為物件成品小，內孔大所以要先鑽孔，再去切割先切割的話鑽孔太危險了，材料有可能會破裂造成危險