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• 螺帽上開數條槽孔以配合安裝開口銷，防止螺帽鬆脫之型式為(A)堡形螺帽　(B)蓋頭螺帽　(C)環首螺帽　(D)蝶形螺帽。
• 使用槽形螺帽時，須用開口銷，其目的是(A)增加螺帽強度　(B)增加鎖緊力　(C)防止螺帽鬆動　(D)防止螺帽變形。
• 使用彈簧鎖緊墊圈防止螺帽鬆動時，應使(A)墊圈旋向與螺桿相同　(B)墊圈與螺桿之旋向無關　(C)墊圈旋向與螺桿相反　(D)需再用插銷固定。
• 螺旋彈性鎖緊墊圈，由鋼絲衝壓製成斷面為(A)長方形　(B)圓形　(C)梯形　(D)正方形。
• 機螺釘共分為0～12號，其號數愈大，則(A)直徑愈大　(B)直徑愈小　(C)直徑與號數無關　(D)直徑相同。
• 用於鎖緊數塊導板件時，應用具有斜度的(A)自旋螺釘　(B)螺樁　(C)帽螺釘　(D)肩頭螺釘。
• 鉋床之拍擊箱、衝床刮屑板處常用的螺釘為(A)固定螺釘　(B)帽螺釘　(C)肩頭螺釘　(D)機螺釘。
• 螺桿的兩端皆有螺紋，其中一端鎖固於機件的陰螺孔中，另一端則貫穿配合件，再以螺帽鎖緊，此為(A)配合螺栓　(B)帽螺釘　(C)螺樁　(D)機螺釘。
• 使用螺旋彈簧墊圈以防止螺帽鬆動時，螺旋墊圈之旋向與螺桿螺紋之旋向關係為(A)兩者之旋向相反　(B)兩者之旋向相同　(C)螺桿為右旋，墊圈為左旋　(D)螺桿為左旋，墊圈為右旋。
• 下列何者不是螺帽防鬆的方法？(A)使用有槽螺帽　(B)使用堡形螺帽　(C)使用齒形墊圈　(D)使用蓋頭螺帽。

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