2015年上半年四川省电焊工初级机械焊接考试试卷.pdf

2015 年上半年四川省电焊工初级机械焊接考试试卷一、单项选择题共25 题，每题2 分，每题的备选项中，只有1 个事最符合题意1、低碳钢不能用来制造工作温度高于_的容器和设备。A300 B400 C500 D600 2、把直流电转换为交流电称为逆变，例如，利用电感和电容组成振荡电路，通过_将直流电转换为交流电。A整流过程B振荡过程C变压过程D自耦3、消除网状渗碳体的方法是_。A球化退火B正火C回火D扩散退火4、为使试验顺利进行，整管焊接接头拉伸试样可_，以利于夹持。A外加卡环B制作夹头C焊接挡板D制作塞头5、气焊铸铁与低碳钢焊接接头，应采用_的火焰。A氧化焰B碳化焰C中性焰或轻微的碳化焰D碳化焰或轻微的氧化焰6、_主要在装焊作业中矫正筒形工件的圆柱度，防止变形以及消除局部变形时使用。A螺旋压紧器B螺旋推撑器C螺旋拉紧器D螺旋撑圆器7、细丝 CO2 气体保护焊时，熔滴过渡一般都是_。A短路过程B细颗粒过渡C粗滴过渡D射流过渡8、由于石墨化元素不足和 _太快，灰铸铁补焊时，焊缝和半熔化区容易产生白口铸铁组织。A电流增长速度B合金元素烧损速度C加热速度D冷却速度9、_的主要作用是改变刀具与工件的受力情况和刀头的散热条件。A前角B后角C主偏角D副偏角10、是一种 CO2 气体保护焊可能产生的气孔。 A氧气孔BN2 气孔CCO2气孔DCO 气孔11、珠光体耐热钢焊条电弧焊时，应根据母材的_选择焊条。A力学性能B高温强度C高温抗氧化性能D化学成分12、T 形接头焊接裂纹试验的焊缝应采用_位置进行焊接。A仰焊B平焊C船形D横焊13、等离子弧切割要求具有 _外特性的 _电源。A陡降；直流B陡降；交流C上升；直流D缓降；交流14、_ 的焊缝，极易形成热裂纹。A窄而浅B窄而深C宽而浅D宽而深15、金属材料的磁性与 _有关。A成分和温度B电阻率与成分C导热率和成分D导热率和温度16、由于纯铜导热率高，所以气焊时，火焰能率应_。A比低碳钢小 12 倍B比低碳钢大 12 倍C和低碳钢相同文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3D比低碳钢大 34 倍17、_试验可考核管子对接的根部质量。A面弯B侧弯C背弯18、在多层高压容器环焊缝的半熔化区产生带尾巴，形状似蝌蚪的气孔，这是由于_所造成的。A焊接材料中的硫、磷含量高B采用了较大的焊接热输入C操作时焊条角度不正确D层板间有油污、锈迹等杂质19、_可以测定焊缝金属的抗拉强度值。A冷弯试验B拉伸试验C冲击试验D硬度试验20、焊接弧光中的 _是弧光的组成部分之一。A射线BX 射线C光子流D紫外线21、_的对接接头不能用焊接接头拉伸试验国家标准进行。A焊条电弧焊B火焰钎焊C钨极氩弧焊D电阻焊22、_不是产生夹渣的原因。A焊层、焊道之间清渣不干净B焊接电流太小C焊接速度太快D未按规定参数烘干焊条、焊剂23、钨极氩弧焊的焊接电流大小主要根据_来选择。A焊件厚度和焊接位置B焊件厚度和焊工操作技术C焊件厚度和接头形式D焊件厚度和坡口形式24、CO2 气体保护焊时假设保护不良或CO2 气体不纯，会在焊缝中产生_。A氢气孔B一氧化碳气孔C氮气孔D氧气25、_喷嘴能减小或防止双弧现象。A单孔B多孔文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3C双锥度D多孔和双锥度二、多项选择题共25 题，每题2 分，每题的备选项中，有2 个或 2 个以上符合题意，至少有 1 个错项。错选，此题不得分；少选，所选的每个选项得0.5 分1、精密量具应选用 _小的金属来制造。A导电性B电阻率C热膨胀性D导热性2、低碳钢的过热组织为粗大的_。A铁素体B珠光体C奥氏体D魏氏组织3、钨极氩弧焊当焊接电流大于_A 时，就必须用水冷却钨极和焊枪。A50 B100 C150 D250 4、与焊条电弧焊相比，_不是埋弧焊的优点。A生产率高B对气孔敏感小C节约焊接材料和电能D焊工劳动条件好5、硫会使焊缝形成 _，所以必须脱硫。A冷裂纹B热裂纹C气孔D夹渣6、根据 GB/T2212000 规定，合金结构钢牌号左端用两位阿拉伯数字表示碳的质量分数的平均值 _表示。A以百分之几计B以千分之几计C以万分之几计D以十万分之几计7、含有较多铁素体相的奥氏体不锈钢焊接时，_时脆化速度最快。A350B500C450D4758、_的来源是由金属及非金属物质在过热条件下产生的高温蒸气经氧化、冷凝而形成的。A金属飞溅文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3B电弧辐射C焊接烟尘D有毒气体9、焊前预热一般要求在坡口两侧各_mm范围内保持均热。A75100 B100150 C150200 D200300 10、焊件外表堆焊时产生的应力是_。A单向应力B平面应力C体积应力11、焊接铸铁时，焊缝中产生的气孔类型主要为_气孔。A氮和氢B氮和 CO C反应和 CO2 DCO 和氢12、水平固定管道组对时应特别注意间隙尺寸，应该是_。A上大下小B上小下大C左大右小D左小右大13、焊接过程中会产生污染环境的各种有害因素很多，以下不属于物理有害因素的是_。A放射线B焊接弧光C热辐射D有害气体14、细丝熔化极氩弧焊，应采用具有_特性的电源。A上升B缓降C平D陡降15、_不是一种焊接变形。A弯曲变形B收缩变形C扭曲变形D热变形16、两焊件端面间构成大于30、小于 135夹角的接头叫 _。AT 形接头B对接接头C角接接头D搭接接头17、板厚 16mm 以下的 Q345(16Mn)钢焊接环境温度 _以下预热 100150文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3A5 B0 C-5 D-10 18、等离子弧切割以 _气体切割效果最正确。AN2+H2 BAr+H2 CAr+N2 DCO2+N2 19、我国射线探伤标准规定，焊缝质量分为四个等级，_是 2 级焊缝内允许存在的缺陷。A裂纹B未熔合C未焊透D夹钨20、_的主要作用是减少副刀刃与工件已加工面间的摩擦。A前角B后角C主偏角D副偏角21、焊接接头拉伸试验试样从焊接试件上_方向截取。A垂直于焊缝轴线B平行于焊缝轴线C垂直于试件中心线D平行于试件中心线22、因为从手到脚电流通过 _，所以电击危险性最大。A肝脏、胃部、血液系统B脾脏、肾脏、消化系统C肾脏、肝脏、中枢神经系统D心脏、肺部、中枢神经系统23、_可以测定焊缝金属或焊件热影响区脆性转变温度。A拉伸试验B冷弯试验C硬度试验D冲击试验24、钨极氩弧焊焊低碳钢和低合金钢时应采用_。A逆变电源B交流电源C直流正接D直流反接25、要求焊后热处理的压力容器，应在热处理前焊接返修。如果在热处理后进行焊接返修，返修后 _。A应做硬度检查B可不再做热处理文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 ZL1D3C1V3M3文档编码:CS10S1L6S8U2 HF6G8O6Q4G5 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