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17.有關金屬電弧銲(Metalinertgasarcwelding,MIG)的敘述,下列何 者不正確? (A)MIG電源機通常為交流定電壓式電銲機 (B)送線速度愈快則電流輸出愈大 (C)電弧電壓是
問題詳情
17.有關金屬電弧銲(Metalinertgasarcwelding,MIG)的敘述,下列何
者不正確?
(A)MIG電源機通常為交流定電壓式電銲機
(B)送線速度愈快則電流輸出愈大
(C)電弧電壓是決定銲道外觀形狀最主要的原因
(D)MIG是目前工業界在施銲碳鋼常用的銲接方法
參考答案
答案:A
統計:A:37,B:14,C:20,D:13,E:0
難度:適中
上一篇 :
16.有關鑄模澆流道系統的敘述,下列何者不正確? (A)澆池(Pouringbasin)可讓部份雜質形成浮渣防止其流入模穴, 並有平緩金屬流的效果 (B)澆道(Sprue)又稱豎澆道,設於澆池的下方,
下一篇 :
18.使用基孔制之配合公差,下列何者為過渡配合? (A)Φ30H7\/p6 (B)Φ30H7\/n6 (C)Φ30H9\/e8 (D)Φ30H8\/f7
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