[{"data":1,"prerenderedAt":52},["ShallowReactive",2],{"q-114180-arch_construction-1":3},{"question":4,"neighbors":26,"sameNumber":36,"prev":11,"next":28},{"id":5,"classKey":6,"session":7,"year":8,"subject":9,"number":10,"groupStem":11,"ownStem":12,"stem":12,"options":13,"answer":18,"answerKind":20,"answerS":11,"answerNote":11,"images":21,"explanation":23,"withheld":11,"deepChars":24,"freq":10,"indexable":25},"arch-114180-801-0103-001","architect","114180",114,"建築構造與施工",1,null,"依據下圖中之衝擊韌性試片結果圖，假設於相同溫度下，試由高至低順序排列出該試片衝擊韌性值結果之大小，下列選項中何者正確？",{"A":14,"B":15,"C":16,"D":17},"(1)＞(2)＞(3)","(3)＞(2)＞(1)","(2)＞(1)＞(3)","(2)＞(3)＞(1)",[19],"B","single",[22],"\u002Fimages\u002Farch-114180-801-0103-001.png","本題考點：鋼材衝擊試驗（如沙丕衝擊試驗）斷裂試片的判讀——由斷口與試片變形程度判斷吸收能量（衝擊韌性）的高低。\n【正解理由】衝擊韌性值是試片被擺錘打斷時所吸收的能量。吸收能量越多，試片在斷裂前產生的塑性變形就越大：試片會明顯彎折、缺口兩側被擠壓變形、斷口粗糙並帶有剪切唇；吸收能量越少，試片幾乎不變形就斷開，斷口平整、呈脆性斷裂。依題圖，試片 (3) 彎折與撕裂變形最明顯、斷口最不規則，吸收能量最高；試片 (2) 缺口附近可見側向收縮與變形，程度介於中間；試片 (1) 外形幾乎維持原狀，斷面平整，屬脆性斷裂，吸收能量最低。由高至低為 (3)＞(2)＞(1)。故選 B。\n【逐項排除】\n(A) 錯誤。(1)＞(2)＞(3) 把順序完全顛倒：外形平整、幾乎沒有變形的 (1) 是吸收能量最少的脆性斷裂，應排在最低；變形最大的 (3) 應排在最高。\n(B) 正確。依塑性變形程度由大到小，(3) 撕裂彎折最明顯、(2) 有局部收縮、(1) 平整脆斷，韌性值 (3)＞(2)＞(1)。\n(C) 錯誤。(2)＞(1)＞(3) 把變形最大的 (3) 排在最後，而且把脆斷的 (1) 排在 (3) 之前；應為 (3) 最高、(1) 最低。\n(D) 錯誤。(2)＞(3)＞(1) 雖然把 (1) 排在最低，但 (3) 的塑性變形明顯大於 (2)，(3) 的吸收能量應高於 (2)。\n【演算步驟】本題不需數值運算，判讀程序為：①衝擊韌性值＝斷裂時吸收的能量；②吸收能量越多，斷裂前塑性變形越大；③依題圖比較三試片的彎折、收縮與斷口粗糙程度：(3) 最大、(2) 次之、(1) 最小；④得 (3)＞(2)＞(1)。\n【記憶點】衝擊試片看變形：越彎越撕越粗糙＝越韌；平整斷開＝脆。",563,true,[27,30,33],{"number":28,"session":7,"stem":29},2,"傳統止水帶（water-stop）是裝置於混凝土施工縫部位的線型防水材料，主要目的是…",{"number":31,"session":7,"stem":32},3,"有關材料延展性的敘述，下列何者錯誤？",{"number":34,"session":7,"stem":35},4,"依據我國建築技術規則有關耐燃材料之規定，下列敘述何者錯誤？",[37,40,43,46,49],{"number":10,"session":38,"stem":39},"113190","下列有關鋼材一般力學性能特性之描述何者錯誤？",{"number":10,"session":41,"stem":42},"112190","木材作為結構材料時應注意木紋斜率（tan θ），為達到受彎木料的最佳應力，下列何者正…",{"number":10,"session":44,"stem":45},"111180","鋁門窗的表面處理，下列那一種最耐候？",{"number":10,"session":47,"stem":48},"110180","木材在纖維飽和點以下時，有關其各方向之膨脹率，下列排序何者正確？",{"number":10,"session":50,"stem":51},"109180","營建材料表面粗糙時，陽光照在上面有助於何種光學行為的產生？",1791863193932]