d. double J groove weld (双面J 型坡口焊缝) e. single V groove weld (单面V 型坡口焊缝)
274. ( D ) Using the above drawings, match the letter：C：with the correct weld groove detail. (与上图中字母“C”相对应的焊缝是)
a. Double J groove weld (双面J 型坡口焊缝) b. Double U groove Weld (双面U 型坡口焊缝) c. Double bevel groove weld (双面坡口焊缝) d. Double V groove weld (双面V 型坡口焊缝) e. None of the above (以上都不对)
275. ( B ) Match the letter “F” with the correct weld groove detail. (与上图中字母“F”相对应的焊缝是)
a. double U groove weld (双面U 型坡口焊缝) b. single U groove weld (单面U 型坡口焊缝) c. single J groove weld (单面J 型坡口焊缝) d. double J groove weld (双面J 型坡口焊缝) e. none of the above (以上都不对)
276. ( B ) What NDT method is most likely to reveal internal laminations in a rolled plate ? (何种无损检测方法用于检测轧制钢板的内部分层？) a. RT b. UT c. ET d. MT
e. None of the above (以上都不对)
277. ( A ) The symbol below depicts what type of weld ? (下图表述何种焊缝？) a. flare V-groove (翻边V 型坡口) b. flare bevel groove (翻边斜坡口) c. edge flange (端部翻边) d. corner flange (角翻边)
e. none of the above (以上都不对)
278. ( C ) In the symbol below, the 3/4 dimension refer to what ? (下图中尺寸3/4 表示) a. weld size (焊缝尺寸)
b. effective throat (有效喉高) c. depth of preparation (熔深) d. root opening (根部间隙)
e. none of the above (以上都不对)
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279 ( C ) The symbol below shows what type of weld ? (下面焊接符号表示何种焊缝？) a. gas metal arc spot weld (熔化极电弧点焊) b. resistance spot weld (电阻点焊)
c. gas metal arc seam weld (熔化极电弧缝焊) d. resistance seam weld (电阻缝焊) e. none of the above (以上都不对)
280. ( C ) The specification covering the requirements for welding electrodes is designated：(下列哪 个标准是对焊条的要求？) a. AWS D1.X b. AWS D14.X c. AWS A5.X d. ASTM A53 e. ASTM A36
281. ( B ) The code that coveres the design and fabrication of unifired pressure vessels is：(哪个法 规是对压力容器的设计和制造要求？) a. ASME Section IX b. ASME Section VIII c. ASME Section III d. API 1’104 e. AWS D1.1
282. ( D ) The code that covers the welding of steel structures is：(关于钢结构的规范是：) a. ASME Section IX b. ANSI B31.1 c. API 1’104 d. AWS D1.1
e. None of the above (以上都不对) GMAW
283 ( D ) The symbol below shows what type of joint configuration ? (下面焊接符号表示何种接 头形式？)
a. square groove (直边坡口)
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b. skewed groove (斜坡口) c. sloped groove (斜面坡口) d. scarf (嵌接)
e. none of the above (以上都不对)
284. ( E ) The symbol below shows the use of what type of weld ? (下面焊接符号表示何种焊 缝？)
a. single bevel-groove weld (单斜面坡口焊缝) b. backing weld (打封底焊缝)
c. single V-groove weld (单面V 型坡口焊缝) d. back weld (封底焊缝) e. b and c above (b 和c)
285. ( A ) Changes in electrical conductivety can be measured using which NDT Method ? (电导的改变可用何种无损检测方法测量？) a. ET d. PT
b. RT e. All of the above (以上都对) c. MT
286（B）What does the nonstandard term “downhand” mean ? (非标准术语“平焊”表示什么意思？) a. Welding vertically downward (垂直的从上往下焊) b. Welding in the flat position (在平面位置焊)
c. The pause during electrode changes (在换焊条时的停顿)
d. The pause of welding during deslagging (在清除焊渣时的焊接停顿) e. None of the above (无上述任何一个)
287 (E) How are transitions in thickness of a groove joint to be made ? (坡口接头的过渡厚度是：) a. Chamfering the thicker member after welding (在焊接后对较厚件进行倒角)
b. By chamfering the thicker member before welding on one side only (在焊接前仅对较厚件 的一边进行倒角)
c. By chamfering the thicker member before welding on both sides only (在焊接前仅对较厚件 的二边进行倒角)
d. By sloping the weld surface(s) (把焊缝表面加工成斜面过渡) e. All of the above (上述所有的)
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288(C) A groove weld qualification on 1/2 in. plate qualifies a procedure for what range of thicknesses ? (在1/2 英寸板材上进行的坡口焊接工艺评定覆盖的板材厚度范围？) a. 0 to 1 in. b. 0 to 3/4 in. c. 1/8 in. to 1 in. d. 1/8 in. to 3/4 in.
e. None of the above (以上都不对)
289 (A) How many times may low hydrogen electrodes be rebaked ? (低氢焊条最多可以重新烘干几 次？)
a. Once (一次) b. Twice (两次)
c. Not limited (没有限制)
d. Not limited , except if coating is damaged (除非药皮被破坏了) e. Not specified (没有要求)
290 (C) What is the allowable deviation from straightness for a 40 foot long primary truss member ? (对40 英寸长的主珩架构件允许的直线度偏差是多少？) a. 1/2 in. b. 7/16 in. c. 3/8 in. d. 5/16 in. e. 1/4 in.
291 (E) What is the allowable variation between the center lines of the web and flange of a 30 feet long built-up I-bean ? (30 英寸长的组装工字梁的腹板中心线和翼板中心线间的允许变化值是多少？) a. 1/2 in. b. 7/16 in. c. 3/8 in. d. 5/16 in. e. 1/4 in.
292 (B) What is allowable misalignment between members of a butt joint, under any circumstances ? (在任何情况下，对接焊缝的错边允许多少？) a. No misalignment permitted (不允许错边) b. 1/8 in.
c. 10% of the thickness of the thinner member (较薄件厚度的10%) AWS D1.1 Code Clinic Exercise Questions
d. 10% of the thickness of the thicker member (较薄件厚度的10%) e. 3/16 in.
293 (A) What maximum depth of undercut is permitted in transverse splices of primary members ? (在主 要构件中，横向接缝的咬边最大允许多深？) a. 0.01 in.
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b. 1/32 in. c. 1/16 in.
d. None permitted (不允许) e. Not specified (没有要求)
294 (E) In what circumstances, if any, can a CWI whose certification has-expired, accept D1.1 work ? (在 什么情况下一个证书已经过期的CWI 可以接受按照D1.1 做的工作？) a. Not permitted due to expiry of certification (不允许，因为证书已过期) b. Requires engineer approval (需要工程师批准)
c. Permitted with a current visual acuity test (需要视觉灵敏度测试)
d. Permitted with current visual acuity test and engineer approval (需要视觉灵敏度测试和工 程师批准)
e. May only work as a CAWI (只能作为助理焊接检验员工作)
295 (C) What action is required if a crack 1/4 in. long is observed in a standard 5/8 in. stud head ? (如果 5/8 英寸的螺柱头部发现一条1/4 英寸长的裂纹，则采取什么行动：) a. No action, use as is (照常使用)
b. Repair crack and use (修复裂纹后使用)
c. Do not use , replace stud (不能使用，替换螺柱)
d. Suitable only for concrete encased studs (只能用做水泥包住的螺柱) e. Notify stud manufacturer (通知螺柱制造商)
3. 填空题
1.材料如果不按扎制方向进行下料切割将使强度降低 30% ，延伸率降低 50% 。 2. 当采用SMAW焊接时风速大于 16千米/小时，需要采取必要的防风措施。
3. 当采用GTAW和FCAW焊接时风速大于 8千米/小时，的时需要采取必要的防风措施。 4.在动循环载荷情况下对接焊缝和非管连接的角焊缝的咬边不能超过 0.25 毫米.。 5.静载荷情况下对接焊缝和非管连接的角焊缝的咬边不能超过 1 毫米。 6.焊角尺寸小于等于8毫米的凸值为 1.6 毫米。 7.焊角尺寸大于8毫米小于25毫米的凸值为 3 mm。 8.焊角尺寸大于25毫米的凸值为 5 mm。
9. 两面角50°至135°焊缝金属为壁厚的 1.25 倍 。 10.两面角35°至50°焊缝金属为壁厚的 1.5 倍。 11.两面角小于35°焊缝金属为壁厚的 1.75 倍 。 12.两面角小于30°焊缝金属为壁厚的 2 倍 .
13..当不同厚度杆件拼接时,如厚度差超过较薄杆件厚度的25%或超过3毫米时,应通过对较厚杆件部分斜切，
使厚度偏差的两个表面或边缘有光滑的锥型过渡，该过渡的长度不能小于厚度偏差的 2.5 倍。
14.任何返修的最小长度为50.8mm.用点焊返修针状气孔或其他缺陷是不可以的.即使缺陷不大,返修的长度至少为50.8mm.
15.无损检验确定缺陷大小后,在任何情况下在缺陷的任何一端外的 25mm 无缺陷金属都要去掉，针孔状气孔缺陷或其他缺陷不允许用点焊进行返修。
16.低碳钢的最低屈服强度小于等于280MPa（40ksi），碳当量一般小于或等于0.40%。此类钢适用于AWS D1.1
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