焊接结构试题及参考答案(7)

(上面的焊接符号哪个能正确代表下面的焊接接头) 1) A 2) B 3) C 4) D

5) None of these (以上均不对)

211. ( B ) In E7018 electrode the E designates：(E7018 焊条中的E 表示) a. engineered (工程的) b. electrode (焊条) c. electricity (电)

212. ( A ) What does the fourth digit (8)of an E7018 electrode indicate： (E7018 焊条中的第4 位数字(8)表示：)

A、The polarity and the type of coating (药皮的极性) B、The strength of the weld material (焊接材料的强度)

C、The type of material used in the electrode (焊条的材料类型)

213. ( C ) Which of the following electrodes have low hydrogen coating ? (下述哪中焊条是碱性药皮) A、E7024 B、E6010 C、E7016 D、E6011

214. ( C ) “B” above refers to which of the following ? (下图“B”表示：) A、back reflection (底波) B、front surface (前表面) C、defect (缺陷)

D、shear wave (剪切波)

E、none of the above (以上均不对)

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215 ( A ) “C” above refers to which of the following ? (上图“C”表示) A、back reflection (底波) B、front surface (前表面) C、defect (缺陷)

D、shear wave (剪切波)

E、none of the above (以上均不对)

216. ( B ) “A” above refers to which of the following ? (“A”表示) A、Back reflection (底波) B、Initial pulse (始波) C、Defect (缺陷)

D、Shear wave (剪切波)

E、None of the above (以上均不对)

217. ( D ) What type of qualification test is this ? (这是什么试验？) A、Tension test (拉伸试验)

B、Root bend test (根部弯曲试验) C、Side bend test (侧弯试验)

D、Fillet weld break test (角焊缝断裂试验) E、Compression test (压断试验)

218. ( D ) In reference to the below drawing , a magnetic field as shown will detect which of the following defects ? (参照下图，磁场将用于探测下列那种缺陷：) A、Longitudial crack (纵向裂纹) B、Transverse crack (横向裂纹) C、Crack at 45° (45 度裂纹) D、B and C above (以上B 和C) E、None of the above (以上均不对)

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219. ( E ) The weld gage on the right is measuring the：(下面焊规正在测量) A、Excessive convexity (焊缝过高) B、Insufficient throat (焊喉偏低) C、Excessive undercut (过度咬边) D、Overlap (焊瘤)

E、None of the above (以上均不对)

220. ( C ) In reference to the above drawing , letter “A ” refers to which of the following weld preparations ? (按下图，字母“ A”表示下述那种焊接坡口) A、Welded from one side only (单面焊焊缝) B、Is a partial penetration weld (部分焊透焊缝) C、Beveled on both sides (双面坡口)

D、Broken arrow for ease of draftsman (绘图员的简易折线箭头) E、Fillet weld on both sides , without bevel (双面无坡口角焊缝)

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221. ( E ) In reference to the above drawing , letter “D” refers to which of the following weld preparations ? (按上图，字母“D”表示下述那种焊接坡口)

A、Has a full penetration J bevel without additional fillet weld. (“J”坡口全焊透焊缝，无附加 角焊缝)

B、Has melt thru on arrow side (箭头侧全焊透) C、Bevel vertical member (直立件开坡口)

D、Is a partial penetration J bevel (“J”坡口部分焊透)

E、Double bevel groove weld on both sides (双面坡口双面焊)

222. ( D ) In reference to the above drawings , letter “C” refers to which of the following weld preparations ? (按上图，字母“C”表示下述那种焊接坡口)

A、Is back gouged with bead on other dike and with additional fillet weld (另一侧背面清根并 加角焊缝)

B、Has fillet weld on one side only (仅在另一侧加角焊缝)

C、Is a single bevel groove weld with no additional fillet weld (单面坡口焊无附加角焊缝) D、Single vee groove weld with backing strip (单面“V”坡口焊带衬垫) E、A and B above (以上A 和B)

223. ( E ) In reference to the above drawings, letter “E” refers to which of the following weld preparations ? (按上图，字母“E”表示下述那种焊接坡口) A、Weld ha melt thru symbols (全焊透焊缝)

B、Broken arrows points to member that is to be beveled (折线箭头指向开坡口的焊件) C、Has a single bevel groove and a double fillet weld (单面坡口双面角焊缝) D、Symbol shows backing strap and strip (表示衬垫) E、None of the above (以上均不对)

334. ( A ) The fillet gage on the right is measuring the：(右侧焊规正在测量) A、Insufficient throat (焊喉尺寸不够) B、Weld size (焊缝尺寸) C、Overlap (焊瘤)

D、Inadequate penetration (未焊透)

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E、A and B above (以上A 和B)

225. ( D ) With reference to the above symbol drawing, the letter “C” represents which welding operation ? (上图焊接符号中字母“C”表示何种焊接操作？) A、Third (第三步施焊)

B、Second weld symbol (第二步施焊) C、First (第一步施焊)

D、Answers a & b (以上a 和b.)

226. ( B ) What does this welding symbol designate ? (该焊接符号指出什么) A、Plug weld (塞焊缝)

B、Weld with backing material (带衬垫的V型坡口焊缝) C、Slot weld (缝焊焊缝) D、Depth of fill (填充深度) E、Spacer (嵌条)

227. ( B ) The fillet gage on the right is measuring the：(下面焊规正在测量：) A、Inadepq\%uate penetration (未焊透) B、Insufficient leg (焊脚尺寸不够)

C、Throat (焊喉) D、Undercut (咬边)

E、Insufficient throat (焊喉尺寸不够)

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