CWI培训PART-B习题及答案.doc

Visual inspection worksheet (spring 1991)(目视检验工作表)Select the correct answer for the following questions. Refer to the “Examination Book of Specifications” for the appropriate information.(为下列问题选择正确答案，请参考”检验技术要求”)1. The designer has detailed the joint B-U2-GF for the welding of two structural members. What is the acceptable range of root opening dimensions for that joint configuration ? (设计者要求两个构件的接头形式为B-U2-GF，请问根部间范围是？)a. 0 to 1/8b. 1/16 to 3/16c. 0 to 1/4d. 0 to 3/16e. none of the above (以上答案都不对)2. Where would the designation A5.18,A5.29,etc.appear on the form in Appendix I ? (A5.18,A5.29应该在附录I中出现在哪里？)a. Space #5 (#5空格)b. Space #6 (#6空格)c. Space #7 (#7空格)d. Space #1 (#1空格)e. None of the above (以上答案都不对)3. Which of the following would be an acceptable electrode for GMAW of 3 thick A514 steel ? (对于气体保护焊焊接3厚的A514钢板，应使用下列哪种焊条？)a. E10XTb. ER100Sc. ER110Sd. All of the above (所有以上焊条)e. None of the above (以上答案都不对)4. For the condition listed in Question #3, what is the required preheat and interpass temperature ? (对于#3问题中的情况，预热温度和层间温度的要求是什么)a. 225 minimum (最低225)b. 225 maximum (最高225)c. 225 min.- 450 max. (最低225，最高450)d. 225 min.- 400 max. (最低225，最高400)e. none of the above (以上答案都不对) Butt Weld Sample (对接焊缝试样)5. What is the depth of the undercut on this weld sample ? (本焊缝试样中咬边深度为多少)a. 1/16b. .003mmc. 1/32d. 5.01mm6. The weld reinforcement on this sample is (本焊缝加强余高为多少)a. 1/32 1/8b. 0.8mm 3.2mmc. 1/2 5/8d. both a and b (a和b都对)7. Which of the following processes would be acceptable for the pre-qualified joining B-U2-GF ? (下列哪种方法用于B-U2a-GF接头可免除工艺评定？)a. FCAW (药芯焊丝气体保护焊)b. SMAW (手工电弧焊)c. GTAW (钨极氩弧焊)d. SAW (埋弧自动焊)e. All of the above (所有以上答案)The following information applies for questions 8 through 14 below：(下列信息用于问题8-14)A welding procedure is being qualified for the welding of A514 plate for a bridge application. The welding process to be used is FCAW, and the weld configuration is single-V-groove weld with a steel backing. The thickness of the test coupon is 1-1/2. This procedure coupon is being welded in the 2G position. (一种焊接工艺用于桥梁焊接A514板材，焊接方法为药芯焊丝气体保护焊，接头形式为单V形坡口，带钢衬板。工艺评定用钢板厚度为1-1/2，焊接位置为2G)8. What is a matching filler metal classification for this procedure ? (该评定应使用哪种填充金属)a. E11XT with a minimum impact strength of 20 ft-1bs at 0 (最低冲击性能为0时20ft-1bs的E11XT)b. E10XTc. E8XTd. E8XT with a minimum impact strength of 20 ft-1bs at -18 (最低冲击性能为-18时20ft-1bs的E8XT)e. None of the above (以上答案都不对)9. What is the required preheat and interpass temperature for this procedure ? (该评定要求预热温度和层间温度为多少)a. 150min.-205 max.b. 125min.-400 max.c. 50min.-230 max.d. a and b above (a和b)e. b and c above (b和c)10. For what thickness will this procedure be qualified if the required tests are passed successfully ? (若该评定顺利通过，那么这个评定可以覆盖多大的板材厚度)a. 3/4to 3b. 3maximum (最大3)c. unlimited (任意板厚)d. 3/4to 1-1/2e. none of the above (以上答案都不对)11. Refer to Appendix VII, paragraph (9). “Acceptance criteria for ASTM A514 and A517 steels shall be based on visual inspection performed not less than 48 hours after completion of the weld.” The most probable reason for requiring a 48 hour delay in inspection is：(参考附录七，第九段“对于ASTM A514和A517钢应在焊接完成48小时后进行目视检验，以确定是否可以接受”。为什么要求焊接48小时后才能检验？)a. Provide adequate time for welding personnel to leave the area (为焊接人员提供充足的时间离开现场)b. Permit repairs to be made before acceptance (允许在验收前进行修补)c. Susceptibility of A514 and A517 materials to delayed hydrogen cracking (A514 和A517钢易产生延迟裂纹)d. Permit any weld porosity present at time of welding to clear up (允许焊接时产生的气孔消失)e. Weld surface slag is easier to remove after it has cooled (冷却后容易去除焊接表面夹渣)12. If the welder who performs this procedure qualification test is also qualified, in what positions is he qualified for production welding ? (如果焊工做该工艺评定的同时经过认可，他可以焊接哪些位置？)a. Horizontal groove and fillet welds in plate (板材的横焊位置，接头为坡口焊缝或角焊缝)b. Flat and horizontal groove and fillet welds in plate (板材的平焊或横焊位置，接头为坡口焊缝或角焊缝)c. Overhead groove and fillet welds in plate (板材的仰焊位置，接头为坡口焊缝或角焊缝)d. Flat groove welds only (只可以焊接平焊位置的坡口焊缝)13. What is the F-number of the filler metal being used ? (所用的填充金属组别号是？)a. 1b. 3c. 6d. 5e. none of the above (以上答案都不对)14. What test specimens are required for this qualification test ? (该工艺评定需要作哪几个试样？)a. 2 tensiles, 2 root bends, 2 face bends (2个拉伸，2个背弯，2个面弯)b. 2 tensiles, 4 side bends (2个拉伸，4个侧弯)c. 2 tensiles, 2 macroetch specimens, 4 side bends (2个拉伸，2个宏观侵蚀，4个侧弯)d. 2 tensiles, 2 macroetch specimens, 2 root bends 2 face bends(2个拉伸，2个宏观侵蚀，2个背弯，2个面弯)e. none of the above (以上答案都不对)15. During the evaluation of guided bend test specimen , a 5/16corner crack is observed. There is no evidence of slag inclusion or other fusion type discontinuities. The specimen is (在鉴定一个导向弯曲试样的时候，在试样边上发现一条5/16长的裂纹。未发现夹渣和其它未熔合不连续。那么该试样：)a. Acceptable (可以接收)b. Rejectable because the crack is greater than 1/4(拒收，因为裂纹大于1/4)c. Rejectable because the crack is greater than 1/8(拒收，因为裂纹大于1/8)d. Disregarded and a replacement specimen taken from the original weldment (重新在原焊件上取样)e. Disregarded and a replacement specimen taken form a different weldment (在另外的焊件上取样)16. Where would the information for Question #3 appear on the form in Appendix I ? (问题#3的内容出现在附录I中的？)a. Space #5 (空格#5)b. Space #6 (空格#6)c. Space #7 (空格#7)d. No prescribed space for this information (没有指定的空格)e. This information is not applicable for procedure qualification (该内容对工艺评定不适用)Sample T-Joint Side “A”(Big T)17. What is the weld size of fillet weld, Side A ? (角焊缝的A侧焊角尺寸是多少？)a. 5/16b. 3/8c. 17/32d. 3/1618. The discontinuity illustrated from 0 to A1 is (从0到A1指的哪种不连续？)a. Arc strike (电弧灼伤)b. Linear porosity (线性非连续)c. Cluster porosity (密集气孔)d. Spatter on weld face (焊缝表面的飞溅)Porosity Sample T-Joint Side “A”(Little T) (T型接头的气孔试样，A面) 19. The porosity in A3 measures (A3中的气孔尺寸为)a. 86.97mmb. 0.313 inc. 0.549 ind. none of these (以上答案都不对)20. The porosity in A3 is (A3中的气孔是)a. Acceptable (可以接收)b. Unacceptable (不可以接收)The following information applies for Questions #21 through #26 (请阅读以下的信息，回答问题21-26)A welder is being qualified on a groove weld in the horizontal position on 8schedule 80 using the SMAW process. The material being joined is API 5L grade X42 to API 5L grade X52.(某焊工有资格焊接8，sch80的管子，接头为坡口焊接，位置为横焊，焊接方法是手工电弧焊。母材是API 5L中的X42和X52)21. For what thickness is this qualification valid ? (该焊工有资格焊接的厚度范围是)a. 5/16-3/4b. 3/4min-unlimited (3/4以上)c. 0.187min.-unlimited (0.187以上)d. all of the above (以上答案都对)e. none of the above (以上答案都不对)22. What is a recommended filler metal for this weld ? (该焊接应采用什么填充金属)a. E6010b. E7010c. E7018d. a or b above (a和b)e. b or c above (b和c)23. For what range of diameters is this qualification valid ? (外径多大的管子适用于该评定？)a. 3/4through 4(3/4到4)b. 4or smaller (小于或等于4)c. 4or larger (大于或等于4)d. all diameters (所有直径的管子)e. test diameter and above (等于或大于评定用的管子直径)24. What test specimens are required ? (该评定需做哪些试样？)a. 2 face bends, 2 root bends (两个面弯试样，两个背弯试样)b. 1 face bend, 1 root bend (一个面弯试样，一个背弯试样)c. 2 face bends, 2 root bends, 2 reduced section tensiles (两个面弯试样，两个背弯试样，两个缩截面拉伸试样)d. 4 side bends (四个侧弯试样)e. none of the above (以上答案都不对)25. What is the required preheat and interpass temperature for welding this joint ? (焊接本接头要求预热和层间温度是多少？)a. None (没有要求)b. None, as long as the base metal is above 32 (只要母材高于华氏32度，没有要求)c. 50 minimum (至少华氏50度)d. 150 minimum (至少华氏150度)e. none of the above (以上答案都不对)26. What F-number(s) apply to the proper filler metal for this weld ? (哪个组别的填充金属可用于这个焊接？)a. 1&6b. 2&6c. 6&21d. 4 only e. none of the above (以上答案都不对)Tensile Specimens (拉伸试样)Measure each of the tensile specimens and supply the following information.(测量每个拉伸试样将答案写到下面)Load=12,500pounds applied to each specimen. (每个拉伸试样承受载荷12,500磅)Formula Tensile Strength = Load divided by the Area (拉伸强度=载荷/载面积)27. White Sample (白色试样)-reduced section (缩截断面) Width (宽度) _ in (英寸) _ mm (毫米) Thickness (厚度) _ in (英寸) _ mm (毫米) Area (面积) _ in.sq. (平方英寸)28. Amber Samper (琥珀色试样) Width (宽度) _ in (英寸) _ mm (毫米) Thickness (厚度) _ in (英寸) _ mm (毫米) Area (面积) _ in.sq. (平方英寸) Amber sample tensile strength _ psi. (琥珀色试样拉伸强度为多少磅/平方英寸)29. Gray Sample (灰色试样) Width (宽度) _ in (英寸) _ mm (毫米) Thickness (厚度) _ in (英寸) _ mm (毫米) Area (面积) _ in.sq. (平方英寸) Gray sample tensile strength _ psi. (灰色试样拉伸强度为多少磅/平方英寸)30. If the welder starts at the bottom of the pipe and welds upward, where would that information appear on the form in Appendix II ? (如果焊工从管部开始向上焊接，应在附录II中何处出现该信息？)a. Space #3 (#3空格)b. Space #7 (#7空格)c. Space #12 (#12空格)d. Space #16 (#16空格)e. None of the above (以上答案都不对)Porosity Sample T-Joint Side B (Little T) (气孔试样T型接头B侧)31. In region B2, is the porosity acceptable ? (在B2区，气孔可以接收吗？)a. Yes (可以)b. NO (不可以)c. no acceptance criteria provided (没有提供接收的标准)d. not enough information provided (没有提供足够的信息)32. The total porosity in the region B3 measures (B3区所有的气孔测量结果为：)a. 0.438 in (0.438英寸)b. 0.157 in (0.157英寸)c. 9.87 mm (9.87毫米)d. both b & c (b和c都对)33. What is the heat input in J/in for a weld made with the GMAW process using 26 volts, 260 amps and 6 in/min travel speed ? (使用气体保护焊，电压26伏，电流260安培，行走速度为6英寸/分钟时的输入线能量是多少焦耳/英寸) Joules per inch=Volts Amps 60/Travel speed (焦耳/英寸=电压X电流X60/行走速度)Fillet Weld Sample A (角焊缝试样A)34. What is the most severe discontinuity present at the lower weld toe on sample A (Side 1) ? (在试样A的1侧下焊趾上出现的最严重的不连续为？)a. Toe crack (焊趾裂纹)b. Undercut (咬边)c. Underfill (未焊满)d. Excessive convexity (焊缝凸起)e. Overlap (焊瘤)35. What is the weld size of side #3 ? (#3侧的焊角尺寸是多少)a. 3/16b. 1/4c. 5/16d. 3/8e. none of the above (以上答案都不对)36. Is the undercut on side #4 acceptable if the weld axis is perpendicular to the applied stress ? (如果应力与焊缝轴线垂直，#4侧咬边可以接吗？)a. Yes (可以)b. No (不可以)c. No acceptance criteria provided (没有接受标准)d. No enough information provided (没有提供足够的信息)To determine a metals ductility, calculations can be made based on the determination of percent elongation and percent reduction of area. (为了确定金属的延展率，可以根据延长率和断面收缩率的结果来计算)Questions 37 and 38 can be answered using the following information：(37和38题可以参考以下数据)Original length 1.75 in (原长度1.75英寸) original area 0.3in2 (原面积0.3平方英寸)Final length 2.5 in (最终长度2.5英寸) final area 0.1 in2 (最终面积0.1平方英寸)37. Calculate the percent elongation (计算延伸率)l Final length minus original length. Total divided by original length, times 100 = _ % (最终长度减去原长度，再除以原长度，乘以100%等于_ %)38. Calculate the percent reduction of area (计算缩截面积的百分比)l Original area minus final area. Total divided by original area, times 100 _ % (原面积减去最终面积，再除以原面积，乘以100%等于_ %)Guided Bend Samples (导向弯曲试样)39. Sample A&B are _ bends. (A和B是什么形式的弯曲试样？)a. Side (侧弯)b. Tensile (拉伸)c. Root (背弯)d. Face (面弯)40. Based on “Examination Book of Specification”, does the guided bends pass or fail as a group ? (根据“检验技术要求”，该组导向弯曲通过还是