CWI试题

  • 格式:pdf
  • 大小:206.80 KB
  • 文档页数:22

试题A1.()Whichofthefollowingisnotconsideredtobeessentialknowledgeforaweldinginspector?(下列哪项不是焊接检验员的主要知识?)a.nondestructivetesting(无损检测)b.weldingsymbols(焊接符号)c.weldingdesign(焊接设计)d.weldingprocesses(焊接方法)e.destructivetesting(破坏性试验)

2.()Inclusionsinaweldwillappearonaradiographas(焊缝夹杂和夹渣在射线片上上显示为)a.adarkspot(暗点)b.alightspot(亮点)c.ageneralizedgrayareaofvaryingcontrast(不明显的灰色区域)d.eitheradarkorlightspotorareadependingontherelativeabsorptionrationofthepartmaterialandtheinclusionmaterial(按夹杂物不同的相对射线吸收率显示为亮点或暗点)e.noneoftheabove(以上均不对)

3.()Backingstripsorbarsshouldberemovedfromallwelds:(衬垫应从所有焊缝上去除)a.Always(总是)b.Never(从不)c.Optional(可选择)

4.()Priortostartingthejobassignment,theweldinginspectorshoulddetermine:(在开始指定的工作前,焊接检验员应先确定:)a.whatcode,standard,orspecificationapplies(适用的法规,标准和规程)b.wheninspectionsshouldbeconducted(何时开始检验)c.whatadditionaltests(inspections)areneeded(什么是附加的试验和检验)d.whererecordsaremaintained(记录保存在何处)e.alloftheabove(以上全对)

5.()Therequiredspotweldsizecanbeshownas:(点焊尺寸可表示为)a.adimensiontotherightofthesymbol(焊接符号右侧的尺寸)b.adimensionoftherequirednuggetdiameter(熔核尺寸)c.avaluefortherequiredshearstrength(要求的剪切强度值)d.aandbabove(上述a和b)e.bandcabove(上述b和c)

6.()Fortheweldinginspector,whatarethemostimportantmeansofgainingthecooperationandrespectoffellowcoworkers:(作为焊接检验员,什么是获得同事合作和尊重的最主要方法:)a.abilitytobetrained(学习能力)

b.professionalattitude(专业的态度)c.abilitytocompleteandmaintaininspectionrecords(完成和保持检验记录的能力)d.goodphysicalcondition(良好的身体状况)e.abilitytointerpretdrawingsandspecifications(解释图纸和标准的能力)

7.()Grooveweldsmakewithoutbackupstrip,withcompletepenetrationmusthave:(无衬垫全焊透坡口焊缝必须:)a.Therootofjointcompletelyfilledwithweldmetal(焊缝根部填满焊缝金属)b.Rootoffirstpassremovedtosoundmetalbeforeweldingsecondside(在焊接另一面前,去除根部第一道焊缝,直至露出完好的焊缝金属)c.Usenewelectrodeatstartofweld.(开始焊接时用新焊条施焊。)d.AorBabove(以上a和b)

8.()Thediagramaboveshows:(以上图表表示)a.Shieldedmetalarcwelding(手工电弧焊)b.Plasmaarcwelding(等离子弧焊)c.Submergedarcwelding(埋弧焊)d.Studwelding(螺柱焊)e.Electrogaswelding(电渣焊)

9.()Thesymbolbelowdescribeswhattypeofweld?(以下符号表示那种焊缝?)

a.staggeredintermittentfilletweld(交叉间断角焊缝)b.chainintermittentfilletweld(对称间断焊缝)c.segmentadfilletweld(分段角焊缝)d.intermittentfilletweld(间断角焊缝)e.noneoftheabove(以上均不对)3

10()Whichoftheweldingsymbolsabovecorrectlyrepresentstheweldedjointshownbelow?(上面的焊接符号哪个能正确代表下面的焊接接头)1)A2)B3)C4)D5)Noneofthese(以上均不对)

11.()InE7018eletrodetheEdesignates:(E7081焊条中的E表示)a.engineered(工程的)b.electrode(焊条)c.electricity(电)

12.()Inthesymbolbelow,the“T”dimensiondescribes:(下面符号中的“T”表示:)

a.weldsize(焊缝尺寸)b.flangeradius(翻边半径)c.flangelength(翻边尺寸)d.depthofpenetration(焊透深度)e.noneoftheabove(以上均不对)

13()Inreferencetothebelowdrawing,amagneticfieldasshownwilldetectwhichofthefollowingdefects?(下图所示的磁场用于探查何种缺陷)a.Cracksparalleltolinesofforce(平行于磁力线的裂纹)b.Cracksat900tolinesofforce(垂直于磁力线的裂纹)

c.Transversecracks(横向裂纹)d.Longitudinalcracks(纵向裂纹)e.BandCabove(上述B和C)4

14.()Whatdoesthefourthdigit(8)ofanE7018electrodeindicate:(E7018焊条中的第4位数字(8)表示:)a.Thepolarityandthetypeofcoating(药皮的极性)b.Thestrengthoftheweldmaterial(焊接材料的强度)c.Thetypeofmaterialusedintheelectrode(焊条的材料类型)

15.()ThethirddigitofanE6010electrodeindicates:(E6010焊条的第3位数字表示)a.Theweldmaybemadeintheverticalposition(可用于立焊位置)b.Maybemadeintheoverheadposition(可用于仰焊)c.Maybemadeinthehorizontalposition(可用于横焊)d.Maybemadeinallpositions(可用于全位置焊)

16.()Whichofthefollowingelectrodeshavelowhydrogencoating?(下述哪中焊条是碱性药皮)a.E7024b.E6010c.E7016d.E6011

17.()Thefilletweldgaugeismeasuringthe:(焊规用于测量)a.Overlap(焊瘤)b.Excessiveconvexity(焊缝凸起)c.Convexfilletweldsize(凸起角焊缝尺寸)d.Insufficientthroat(焊喉不够)e.Noneoftheabove(以上均不对)18.()“B”abovereferstowhichofthefollowing?(“B”表示:)a.backreflection(底波)b.frontsurface(前表面)c.defect(缺陷)d.shearwave(剪切波)e.noneoftheabove(以上均不对)

19.()“C”abovereferstowhichofthefollowing?(“C”表示)a.backreflection(底波)b.frontsurface(前表面)c.defect(缺陷)d.shearwave(剪切波)e.noneoftheabove(以上均不对.)

20.()“A”abovereferstowhichofthefollowing?(“A”表示)a.Backreflection(底波)b.Initialpulse(前表面)c.Defect(缺陷)d.Shearwave(剪切波)e.Noneoftheabove(以上均不对)

21.()Whattypeofqualificationtestisthis?(这是什么试验?)a.Tensiontest(拉伸试验)b.Rootbendtest(根部弯曲试验)c.Sidebendtest(侧弯试验)d.Filletweldbreaktest(角焊缝断裂试验)e.Compressiontest(压断试验)

22.()Thissymbol““waschangedtothefollowing““in1968.Whatdoesthissymbolrepresent?(该符号在1968年更改为下文的含义,哪一个是对的?)a.weldallaround(周边全焊)b.backingweld(封底焊)c.fieldweld(现场焊)d.meltthru(全焊透)e.convexcontour(凸起轮廓)

23()Whatistheleglengthofthisfilletweld?(该角焊缝的焊脚高是多少)a.1/4b.3/16c.1/8d.5/16e.7/8