ARAMCO考试题.doc

Y wenkufile temp2 2020 3 11 52793931 0bd0 45fb 98c6 a8ea015db4de bf4d3a94dc6cf3fa225f34e369174a8e pdf Page 1 of 61 Questionnaire and Answer Sheet MECHANICAL GENERAL 1 机械综合机械综合 1 1 What is the purpose of a penetrameter or IQI Indicates radiographic sensitivity and quality of the techniques To find the smallest defect 2 What is meant by the term sensitivity with regard to radiography The ability of a radiographic technique to reveal defects of a specific size 3 What are the limitations of magnetic particle inspection and liquid penetrant inspection M T can be used only on ferromagnetic materials to detect surface subsurface discontinuities L T can be used to detect defects open to the surface Both M P and L P require surface preparations before testing 1 magnetic material 2 surface and sub surface 3 Surface finish scale oil 4 What information is contained in a Welding Procedure Specification Process type groove joint design material type material thickness position of groove filler metal type pre heat requirements interpass temperature post weld heat treatment requirements shielding gas or flux type electrical characteristics techniques of welding Essential and non essential variables 5 Why is post weld heat treatment required for some type weldments Relieve stresses adjust hardness 6 What is the basic difference between a DIN and an ASME penetrameter DIN penetrameter has a wire type penetrameter 7 wires ASME penetrameter is a wire type penetrameter 6 wires 7 What type of defects would you expect to find during visual inspection of a completed weld Undercut excessive or insufficient weld reinforcement lack of penetration lack of fusion porosity slag inclusion cracks weld spatter etc incomplete penetration on a single butt weld weld spatter etc 8 What precaution must be taken with low hydrogen welding electrodes Store in oven when not in use kept in heated container by welder awaiting use 9 What information normally appears on radiography Penetrameter identification Location of markers to ensure complete coverage the name of the inspecting laboratory the date the part number whether original or subsequent exposure 10 What is the code require amperage for the dry prod method of magnetic particle inspection 90 110 amps inch for 19mm 11 What materials are the transducer search unit crystal made from Quartz Barium Titanate Lithium Sulphate and Ceramics Page 2 of 61 12 What is a film defect artefact A mark on the film usually caused by improper handling or processing Artefact water mark finger print any bad operation 13 If you were inspecting an item using the prod method and located a weak crack pattern where would you place the prods to obtain a stronger location Relocate prods 90 degrees to the crack pattern and re inspect 14 What typical defects would you expect while inspecting a casting Sand and slag inclusions gas porosity shrinkage hot tears 15 Describe the pulse echo technique When an electric current is applied to the crystal the crystal vibrates transforming the electric energy into mechanical vibrations which are transmitted through a coupling medium into the test material as high frequency sound waves These pulse vibrations propagate through the object and are reflected as echoes from both discontinuities and the back surface of the test piece and will appear as a vertical deflection on the cathode ray tube or oscilloscope The prob make sound wave though the material reflect by the wall no evidence of laminations or burnt metal shall develop during the entire test for Grade A25 welded pipe flatten to three fourth of the OD without weld fracture Cont flattening to 60 of the OD without cracks or breaks other than in the weld 对于所有管子的 D t 连续压扁直到管子两壁接触 没有明显的迭片结构或者灼伤金属在整个试验中逐步 显现出来 对于 A25 钢级的焊缝管 压扁到其外径的 3 4 且不出现焊缝破裂 继续压扁到外径的 60 且在 焊缝的其他部位不出现裂缝 破裂 6 Question How is a flattening test performed on pipe 压扁试验是怎样在管子上作的 Answer A sample piece of pipe not less than 2 63 5 mm in length is flattened cold between parallel plates 管子试样的一段 长度不小于 2 63 5 mm 被平行钢板冷压扁 7 Question What is looked for during the first step of a flattening test 压扁试验的第一步要寻找什么缺陷 Answer That no cracks or breaks occur in the sample prior to a specific dimension being reached between the parallel plates The subject dimension is determined according to a standard formula 在两块平行钢板之间距离达到既定尺寸之前 试样没有裂缝 破裂发生 8 Question Of what does the second step of a flattening test consists 压扁试验的第二步包括什么 Answer The flattening is continued until the sample break or the opposite walls of the tube meet For pipe with a D t greater than 10 cont flattening to one third of the original OD without Cracks or breaks other than in the weld 压扁要进行到试样破裂或对应管壁相接为止 对于 D t 大于 10 压扁到原始外径的 1 3 且在焊缝的其它部位没有裂缝和破裂 9 Question What imperfections in the sample would cause the second step of the flattening test to be rejected 试样的什么缺欠会导致压扁试验的第二步不合格 Page 15 of 61 Answer Evidence of laminated or unsound material or incomplete weld 明显的夹层或材料不够稳定或不完全焊接 10 Question Describe a reverse flattening test on a welded tube what results would cause the test to be rejected 描述一个反面的在焊接管上进行的压扁试验 什么结果会导致试验不合格 Answer A section of tubing is split longitudinally 90 degrees on each side of the weld and the sample opened and flattened with the weld at the point of maximum bend there shall be no evidence of cracks lack of penetration or overlaps resulting from flash removal in the weld 油管的一部分沿焊接边被纵向 90 度分离并且试样被压扁展开 并在最大弯曲点呈显出焊缝 焊缝毛刺的移除 处不应出现明显的裂缝 缺失渗透 重叠 11 Question Describe a flaring test and its requirements 描述扩口试验及其要求 Answer A section of tube shall stand being flared with a tool having a 60 degree included angle until the tube at the mouth of the flare has been expanded to a specified percentage without cracking or showing flaws 油管的一部分应竖立且用一个有 60 度角的工具向外扩开 直到扩展开的管口被扩张到规定的比例 且没有裂 缝 裂纹出现 12 Question What is a flange test and what results are required 什么是弯边试验 要求的结果是什么 Answer A section of tube shall be capable of having a flange turned over at a right angle to the body of the tube without cracking or showing flaws 油管一段应能够让弯边从右角度折弯到管体 不能有裂缝或其他缺陷 13 Question What information should be stamped on a butt weld fitting 对接焊管件需标识什么信息 Answer Manufacturer s name or trade mark schedule number or nominal wall thickness size and type of material 生产商的厂名或商标 时间编码 名义壁厚 尺寸和材料型号 14 Question At what depth does an imperfection become injurious to a butt weld fitting 缺欠到什么程度可危害对接焊管件 Answer When it is in excess of 12 percent of the nominal wall thickness or when it encroaches on the minimum wall thickness 当缺欠超过百分之 12 名义壁厚或超出最小壁厚时 15 Question What non destructive examination would you expect to have been performed on a 36 diameter welded elbow 36 直径焊接机械肘要进行那种无损检验 Answer Radiography of the weld 射线检验焊缝 16 Question What dimensions should be checked when inspecting a raised face welding neck flange 当检验凸面焊颈弯边时 要检查什么尺寸 Answer Outside diameters inside diameters wall thickness flange thickness height of raised face length through the hub bolt circle diameter bolt hole diameter RF surface Page 16 of 61 外径 内径 壁厚 弯边厚度 凸边高度 穿过毂的长度 螺栓圆周直径 螺栓钻孔直径 RF 射频 表面 17 Question What is the purpose of spot or back facing on flange bolt holes 检查凸缘螺栓孔背面目的是什么 Answer Ensure a proper seating surface for the washer or nut 为垫圈和螺母的安装确保合适的就座面 18 Question How should a socket weld flange be set up for welding to a pipe 一个有钻孔的焊接法兰如何被安装 焊接 到管子上 Answer So as to maintain approximately a 1 16 gap between the face of the pipe and the inner lip of the flange ANSI 31 3 在管子表面和法兰的内唇缘保留一个大约 1 16 英寸的缺口 19 Question Can a seal weld be considered as adding a strength to a threaded joint 密封焊接能被认为向螺纹接缝增加力量吗 Answer No ANSI 31 3 不能 20 Question If threaded joints are seal welded what percentage of the threads must be covered by the weld 如果螺纹接缝时密封焊接的 那么焊接时将要覆盖的螺纹的百分比为多少 Answer 100 ANSI 31 1 21 Question If you were inspecting slip on flanges which were to be used in hydrogen service what special fabrication technique would you expect to check 如果你要检查用于氢气服务的法兰的滑动 那么你希望检测什么特殊的制作技术 Answer Drilled hole approximately 1 8 to vent space between I D of flange and O D of pipe 管子外径和法兰内径之间通风地带的钻孔 大约 1 8 英寸 Questionnaire and Answer Sheet LINE PIPE flange diameter outside high of raised face length through hub bolt hole diameter bolt circle diameter bore size 法兰壁厚 法兰直径 外 内 法兰厚度 光滑式密封面高度 length through hub 螺栓孔直径 螺栓圆周 直径 孔径尺寸 5 Question Is the packing gland to be tight during the back seat test of a gate valve Page 32 of 61 在上密封试验时闸阀填料函需要绷紧吗 Answer No loose 不 松弛 6 Question At what depth does an imperfection defect become normally rejectable in a butt welding fitting 在对接焊配件中 通常多深的缺欠 缺陷应当拒收 Answer Normally when it is in excess of 12 of the nominal wall thickness or when it encroaches on the minimum wall thickness 通常当它超过名义壁厚的 12 或当它渗透到规定的最小壁厚时 7 Question Is it permissible to supply gate valves with slots rather than holes in the packing gland 允许供应填料函中有狭槽而非孔的闸阀吗 Answer No 不行 8 Question What visual and dimensional inspection would you carry out on a seamless butt welding elbow 你在无缝对焊弯头处将执行怎样的外观 尺寸检验 Answer Visual External Internal surfaces bevelled ends proper identification marking Dimensional Wall thickness Outside diameter Inside diameter Radius of elbow 外观检验 外 内表面 倒角 适当的打印标号 尺寸检验 壁厚 外径 内径 弯头半径 9 Question What is the purpose of spot or back facing on flange bolt holes 凸缘螺栓孔 的目的是什么 Answer Ensure proper seating surface for the washer or nut 确保垫圈或螺母有合适的阀座表面 10 Question Is it permissible for a vendor to lubricate valve seats prior to testing 卖方允许在实验前润滑阀座吗 Answer Yes Only if necessary to prevent galling 是的 仅为了防止粘口时使用 Valves Fittings Miscellaneous Questionnaire Attachment to Gate Valve Question 1 Page 33 of 61 Gate Valve 闸阀 Questionnaire and Answer Sheet VALVES FITTINGS MISC 4 阀门阀门 配件配件 4 1 Question What is the purpose of a nitrogen gas test on a wellhead assembly At what pressure is it carried out 在井头组装时做氮气试验的目的是什么 Answer To check there are no leaks At working pressure 检验是否有泄漏 Page 34 of 61 在工作压力下 2 Question Is it permissible for a vendor to lubricate valve seats prior to testing 卖方允许在实验前润滑阀座吗 Answer Yes only if necessary to prevent galling 是的 仅为了防止粘扣时使用 3 Question What visual and dimensional inspection would you carry out on a seamless butt welding elbow 你将在无缝对焊弯头处执行怎样的外观 尺寸检验 Answer Visual External Internal surfaces bevelled ends proper identification marking Dimensional Wall thickness Outside diameter Inside diameter Radius of elbow 外观检验 外 内表面 倒角 适当的打印标号 尺寸检验 壁厚 外径 内径 弯头半径 4 Question What is the purpose of spot or back facing on flange bolt holes Answer Ensure a proper seating surface for the washer or nut 确保垫圈或螺母有合适的阀座表面 5 Question What should be checked on the dimensional inspection of a raised face welding neck flange 在对凸面对焊法兰做几何尺寸检验时 需要检验什么 Answer Flange wall thickness flange diameter outside hight of raised face length through hub bolt hole diameter bolt circle diameter bore size 法兰壁厚 法兰直径 外 内 法兰厚度 光滑式密封面高度 length through hub 螺栓孔直径 螺栓圆周 直径 孔径尺寸 6 Question What pressure tests are required on gate valves 闸阀需要哪些压力试验 Answer Shell backseat low pressure seat 壳体试验 上密封试验 低压试验 7 Question The drawing in attachment 1 shows a typical gate valve Identify at least 15 parts by assigning the correct numbers to the circles based on the part name number list below 说出附件一所绘典型闸阀中至少 个部件 1 Yoke bolting 支架螺栓13 Stem nut 阀杆螺母 2 Seat ring 阀座环14 Lantern 提灯 3 Drain plug 排水栓15 Yoke 支架 4 Backseat bushing 上密封轴衬16 Gland 填料压盖 5 Valve port 阀口17 Gland flange 填料压盖法兰 6 Bonnet gasket 阀帽垫片18 Gland lug bolts and nuts 压盖螺栓和螺母 7 Bonnet bolts an nuts 阀帽螺栓和螺母19 Gate 闸门 8 Body 阀体20 Hand wheel 手轮 Page 35 of 61 9 Gland bolts or gland eye bolts and nuts 压 盖螺栓或压盖眼螺栓和螺母 21 Stem 阀杆 10 Bonnet 阀帽22 One piece gland alternative 一根密封管 二中择一 11 Stem wiper packing23 Hand wheel nut 手轮螺母 12 Stem packing Answer See drawing 参看图片 8 Question Is it permissible to supply gate valves with slots rather than holes in the packing gland 允许供应填料函中有狭槽而非孔的闸阀吗 Answer No 不允许 9 Question What position is the gate to be in during the shell test 在壳体试验时 闸门处于什么位置 Answer Partially closed 部分关闭 10 Question At what depth does an imperfection defect become normally rejactable in a butt welding fitting 在对接焊配件中 通常多深的缺欠 缺陷应当拒收 Answer Normally when it is in excess of 12 of the nominal wall thickness or when it encroaches on the minimum wall thickness 通常当它超过名义壁厚的 12 或当它渗透到规定的最小壁厚时 Valves Fittings Miscellaneous Questionnaire Attachment to Gate Valve Question 1 闸阀问题 1 附件 Page 36 of 61 Gate Valve 闸阀 Questionnaire and Answer Sheet PRESSURE RETAINING EQUIPMENT 1 保压设备保压设备 1 Question What ASME code covers the welding aspects of pressure vessels 什么美国机械工程协会编码覆盖压力容器焊接方面 a ASME Section V b ASME Section I c ASME Section II d ASME Section IX Page 37 of 61 Answer I V and IX 2 Question Does ASME code allow openings through welded joints to accommodate nozzles 美国机械工程协会允许 Answer Yes provided the relevant design criteria of the code are met However nozzles in welded joints should be avoided whenever possible 是的 只要相关设计标准编码满足要求 但是 焊接缝喷嘴如果可能的话要尽量避免 3 Question What is meant by the term floating header in relation to an air cooled heat exchanger 移动喷口在用空气冷却的热交换器中的意思是什么 Answer One of the 2 headers of an air cooled heat exchanger is called the floating header which should be free to move with thermal expansion of the tubes 空气冷却热交换器中两个喷口中的一个叫移动喷口 它可随管子热膨胀自由活动 4 Question The drawing in attachment 1 shows a typical floating head type heat exchanger Can you identify at least 18 parts by assigning the correct numbers to the circles based on the part name number list given below 写出附件 1 换热器图形中至少 18 个部件 1 Channel 通道13 Instrument connection 工具连接 2 Support Saddle 支座14 Shell nozzle 壳体开口 3 Shell 外壳15 Impingement plate 冲击板 4 Vent connection 通风孔连接16 Tie rods and Spacers Device 尖端杆和逆电 流器装置 5 Shell cover 端盖17 Floating head backing 6 Floating tube sheet 移动管板18 Drain connection 排水管接头 7 Floating head cover 换热器 浮头盖19 Floating head flange 移动头法兰 8 Transverse baffles 横向挡板20 Shell flange 外壳法兰 9 Tubes 管子21 Shell cover flange 外壳盖法兰 10 Channel cover 通道盖22 Pass partition 通道划分 11 Channel flange 通道法兰23 Tube sheet 管板 12 Channel nozzle 通道开口 Answer See attachment 看以下附件 5 Question How can you ensure the tube bundle will fit properly in the shell 怎么确保管束适当的安装在壳体里 Answer Pass a template thru the shell 用模板穿过壳体 6 Question The surface preparation of plate material prior to application of paint etc is critical What is a reasonable time prior to application of primer in a well heated shop after blasting 在油漆之前 板材的表面准备是至关重要的 什么是合理时间 Answer Page 38 of 61 1 hour 1 小时 7 Question What would you look for when checking a piping joint fit up prior to welding 在焊接前检验管接安装时 你预期什么 Answer Proper weld bevel root gap and bore alignment 合适的焊接倒角 底部缺口和钻孔重合度 8 Question What are some of the precautions which should be taken when welding piping materials of alloy material such as 1 chrome 5 chrome etc 在焊接合金如 1 铬和 5 铬等管道材料时 需要预防些什么 Answer Preheat and interpass temperatures to metric micron m 1 mil 25 4 m 千分之一寸 7 Question TRUE or FALSE It is acceptable to reject the coating if any single gauge reading is less than the required dry film thickness 对与错 如果单项测量读数小于要求的干膜厚度 允许拒收涂层 Answer False 错 8 Question TRUE or FALSE The type of material being coated can have an effect on the magnetic gauge 对与错 经涂层的材料能对磁力测微计造成影响 Answer True 对 9 Question During surface preparation coating application or curing a periodic check of the will minimize the chance of premature failure of the applied system a Substrate Temperature b Air Temperature c Relative Humidity d All of the above 在表面准备 涂层施加或修复时 对 定期检验将减少所施加系统的过早破坏 a 底层温度 b 空气温度 c 相对湿度 d 以上所有的 Answer d 10 Question The is a measurement of the surface roughness created by abrasive blast cleaning a Surface profile b Anchor pattern c Anchor profile d All of the above 是由喷沙清理造成的表面粗糙度的测量方法 a 表面轮廓 b 底材表面粗糙类型 c 固定器轮廓 d 以上 所有的 Answer d Coating critical 1 Question During surface preparation coating application or curing a periodic check of the minimize the chance of premature failure of the applied system a Substrate Temperature b Air Temperature c Relative Humidity d All of the above 在表面准备 涂层施加或修复时 对 定期检验将减少所施加系统的过早破坏 a 底层温度 b 空气温度 c 相对湿度 d 以上所有的 Page 48 of 61 Answer d 2 Question Holidays are caused by a The entrapped air or solvent that forms voids or bubbles in the coating film b the amount of wrinkled coated areas c The pinholes skip discontinuity voids d the fine checking wrinkling frosting under certain rying conditions 漏涂是有以下哪项导致的 a 带走的空气或溶剂在涂层膜中形成孔隙或泡沫 b 具皱的涂层区域 c 针孔 跳 跃 不连续 孔隙 d 在 rying 条件下的微裂 皱纹 无光泽面 Answer d 3 Question The primary function of a thermal pickle is to a Stress relieve the pipe b Remove oil grease and other deleterious materials c Remove mill scale d All of the above 热浸的主要功能是 a 减轻管子应力 b 去油 去脂以及去其他有害物质 c 去处氧化皮 d 以上所有的 Answer b 4 Question a Erosion b Corrosion c Chalking d De lamination is a process whereby materials deteriorate as the result of a reaction between them an their surrounding environment a 腐蚀 b 侵蚀 c 粉化 d 分层 Answer a b c 5 Question is the formation of separations of the film that resemble holes or depressions in the coating film a Fish Eyes b Delamination c Pinholding d Blistering 是防腐薄膜中类似于孔状物的分离薄膜结构 a 白点 b 分层 c 孔 d 水泡 Answer a c 6 Question is a measurement of the surface roughness created by abrasive blast cleaning a Surface profile b Anchor pattern c Anchor profile d All of the above 是由喷沙清理造成的表面粗糙度的测量方法 a 表面轮廓 b 底材表面粗糙类型 c 固定器轮廓 d 以上 所有的 Answer d 7 Question a Pigment b Binder c Filler d Vehicle is a discrete particulate solid used to impart specific protective or decorative qualities to the coating Answer a 8 Question Which type of the following coating is cured by heat induced polymerization a Epoxy modified phenolic b Epoxies c Epoxy Ester d Vinyl 一下哪种涂层可以通过热聚合法修复 a 环氧改良石碳酸 b 环氧 c 环氧酯 d 乙烯基 Page 49 of 61 Answer a 9 Question Moisture will not condense on the surface unless the surface temperature is a Above the dew point b Reduced or the dew point goes up c Increased or the dew point goes down d None of the above 潮湿不会在表面浓缩 除非表面温度是 a 在露点以上 b 减少 或旅店上升 c 上升 或露点下降 d 以上 都不是 Answer a 10 Question a Orange peel b Dry spray c Curtain d wrinkling is caused by improper atomization due to low air pressure fast s