焊接檢驗(yàn)技術(shù)(練習(xí)題按教材10章的順序排列，美國慣用單位制和公制轉(zhuǎn)換表，答案附于最后)2b.economics經(jīng)濟(jì)c.lessconservativedesign較少保守的設(shè)計(jì)Q1-2WhatAWSdocumentdescribe哪份AWS文件闡述了CWI證書程序規(guī)定?AWSQC1中包括的三種焊接檢驗(yàn)證書是哪三種?e.Noneoftheabove以上都不是Q1-5Whatisgenerallyconsiderb.anengineeringdegree工程師職稱c.anassociates'degree助理職稱fessionalattitude職業(yè)態(tài)度e.holdacertifiedweldercertificate擁有注冊(cè)的焊工證書b.JaegerJ2atnotlessthan12inJaegerJ2不少于12英寸d.theinspectorcannotwearglasses檢驗(yàn)員不能佩戴眼鏡縮略語KASH表示：焊接檢驗(yàn)員應(yīng)掌握的基本知識(shí)為：a.weldingprocesses焊接方法b.nondestructivetesd.codesandstandards規(guī)范和標(biāo)準(zhǔn)用以描述推遲生產(chǎn)計(jì)劃以允許檢驗(yàn)的術(shù)語是：a.NDE無損檢查b.holdpoint停止點(diǎn)c.preinspection預(yù)檢測e.arcstrike電弧觸發(fā)Q1-10Inspectionreportco檢驗(yàn)報(bào)告的修改應(yīng)這樣進(jìn)行：a.rewritingtheentirereport重寫整份報(bào)告b.reportingthecorrectiontotheweldingforeman將修改部分給焊工領(lǐng)班d.ignoringtheoriginalerror忽略原先的錯(cuò)誤Q1-11Adefinitionof道德的定義是：a.usingcommonsenseandhonesty常規(guī)的誠實(shí)觀b.livingbytherules按規(guī)定辦事c.beingfairandimpartial公平并公正d.basingdecisionsonfacts依據(jù)事實(shí)作出結(jié)論4Q1-12Forcommunicationstobeeffective,itshouldforma“continuousloop.”b.false錯(cuò)誤b.supervisors監(jiān)督人員c.weldingengineers焊接工程師d.membersofmanagement管理人員Q1-14NDEpersonnel(otherthanCWIs)aretypicallyceNDE人員(而非CWI)依據(jù)哪份文件頒發(fā)證書?你要想成為CWI,必須有高中的學(xué)歷證書。a.true正確b.false錯(cuò)誤d.code,visiontest,practical規(guī)范，視力檢查，實(shí)際操作e.noneoftheabove以上都不是a.true正確b.false錯(cuò)誤5a.true正確a.FillerMetalSpecifications填b.StandardWeldingTermsandDefinid.RequirementsforCWICertificatione.noneoftheabove以上都不是API標(biāo)準(zhǔn)1104包括橫穿全國的橋梁的制作。b.false錯(cuò)誤Q1-21Someoftheapprovedcodes/standardsfortheopD1.5和AWSD15.1.a.true正確b.false錯(cuò)誤Q1-22Priortostartingb.whatinspectionsshouldbeconducted應(yīng)該進(jìn)行什么c.wheninspectionsshouldbeconducted應(yīng)該何時(shí)進(jìn)行檢測d.whererecordsaremaintained記錄保存于何處第2章安全操作和焊接檢驗(yàn)a.radiation輻射b.fallingobjects墜落物c.electricalshock觸電d.eyehazards眼睛傷害tectiveeqmpment保護(hù)工具e.managementsupport管理層的支持c.ASMECodeASME規(guī)范d.WeldingHandbook,Volume2焊接手冊(cè)第二卷Q2-5Theabbrevia縮略語MSDS表示：c.MaterialSafetyDataSheed.MaterialStrengthandDataSheet材料強(qiáng)度和數(shù)據(jù)單7e.noneoftheabove以上都不是a.TotalLinearvolume總線性量b.ThresholdLimitValue限值c.TackLengthValue定位長度值d.ThresholdLimitingValve極限數(shù)據(jù)b.false錯(cuò)誤a.true正確b.false錯(cuò)誤d.areaswhereafirehazardmayoccurduringawelding,cutting,orprehea.flyingparticles飛濺物b.radiation輻射dalloftheabove以上皆是a.weldinghelmetswithfilterplates裝有濾光鏡片的焊接頭盔b.clearsafetygoggles透明護(hù)目鏡8a.65%cotton,35%polyester65%棉，35%滌綸b.Wool羊毛'Lock,Tag,andTry'procedureshouldb.false錯(cuò)誤b.thetypeoffillermetal填充物的種類d.thepositionoftheweldingmachine焊接機(jī)器的位置e.thepositionofthewelder'shead焊工頭部所處位置b.false錯(cuò)誤a.true正確e.alloftheabove以上皆是Q2-18Properusageandhanda.notweldingoncylinders不在容器上進(jìn)行焊接不將容器作接地用，或不將其接入電路.c.securingthemproperly合理地保護(hù)e.alloftheabove以上皆是Q2-19Acetylenebecomeb.10psia.notharmful無害b.primarycurrents主要電流c.harmful有害a.allthewayonanacetylenecylinder通向乙炔氣瓶的所有通道b.oneturnonanoxygencylinder開啟一個(gè)氧氣缸c.oneturnorlessonanacetylenecylinder第3章金屬連接和切割的方法以下什么是SMAW焊條藥皮的作用?AWS標(biāo)準(zhǔn)里規(guī)定SMAW的焊條標(biāo)識(shí)中最后一個(gè)數(shù)字之前的數(shù)字表示什么意SMAW焊條標(biāo)識(shí)E7024中各符號(hào)和數(shù)字表示的意思不正確的是以下哪個(gè)?b.Thewelddeposithasaminimumtensilest熔敷金屬的最小抗拉強(qiáng)度為70000PSI.e.noneoftheaboveQ3-4Ofthefollowingwhichisnotanessentialpartofa以下哪部分不是典型的SMAW特點(diǎn)?a.constantcurrentpowere.worklead工件接電3-5Whichofthefollowingweldingproblemsistheresdthatdeflectstheweldingb.shortcircuiting短路d.insufficientweldingcurrent焊接電流不足Q3-6Whichofthefollowingisnotconsideredatypeofmetaltr以下什么不是GMAW的熔滴過渡類型?a.shortcircuiting短路b.spray噴射c.globularQ3-7WhichofthefollowingtypesofmetaltransferinGMAWprovidesthelowestamountofheattotheworkpiece,andtherefore以下哪種GMAW的熔滴過渡，會(huì)使工件熱量最低，并導(dǎo)致未熔合?下列哪些可以用做GMAW的保護(hù)氣體?d.argon氬氣Q3-9Whattypeofweldingprocessispicturedba.SMAW藥皮b.GMAW熔化極氣體保護(hù)焊c.FCAWFCAW的焊絲標(biāo)號(hào)系統(tǒng)中，E71T-5中的第二個(gè)數(shù)字(1)表示的是什么意思?a.strength強(qiáng)度b.weldingposition焊接位置d.usability適用性e.noneoftheaboveQ3-12Whichofthefollowing以下哪些不總是FCAW焊接系統(tǒng)的基本要素?a.constantvoltagepowersupply恒壓b.tubularelectrode管狀焊絲c.shielding氣體保護(hù)e.noneoftheabove以上都不是a.granularfluxb.slag熔渣b.1%thoriatedtungsten含1%的針的鎢c.2%thoriatedtungsten含2%針的鎢Q3-16Whenweldingaluminumwi當(dāng)使用GTAW焊鋁時(shí)，哪種類型的電流使用最廣泛?a.DCEP直流，電極接正極b.DCEN直流，電極接負(fù)極a.bothareanarcweldingprocesc.bothuseagranularflux,whichbecomea.SMAWb.ESWQ3-19Solidificationcrackingduetoimproperwidth-to-depthratiooftheseriousproblemprimarilywith用以下哪種焊接方法會(huì)因?yàn)槿鄯蠛傅啦缓线m的寬深比產(chǎn)生結(jié)晶裂紋?a.SMAWb.OFCe.noneoftheabove以上都不是Q3-20Whichoneofthefollowingprocessesistypicallyusedinthefiatpositionunle除非使用特殊裝置，否則，以下哪種焊接方法一般用于平焊位置?b.SAWe.GTAW對(duì)于GTAW和PAW,以下什么不是它們共有的?a.nonconsumabletungstenelectrode非熔化鎢極b.constrictingorifice壓縮噴嘴beveledgepreparatiPAW的什么技術(shù)能在不制備坡口情況下達(dá)到完全熔透?a.stringerbeadsQ3-23Whatweldingprocesspralongthejoint?b.ESWQ3-24Whichofthefollowingi以下什么不是ESW的優(yōu)點(diǎn)?a.highdepositionratec.capableofjoiningthicksections能焊接厚板d.notendencyforangulardistortion無角變形趨勢e.noneoftheabove以上都不是Q3-25Whichweldingprocessisconsideredtobeachemicalweldingprocess?b.ESWe.noneoftheabove以上都不是Q3-26whicharcweldingprocessprovidesaveryefficientmeb.SWa.nofillermetalisused不用填充金屬e.noneoftheabove以上都不是a.cleanjointsurfc.alargesurfaceareaforthejointareaa.easeofjoiningthicksections容易連接厚截面b.abilitytoioindissimilarmetalsc.abilitytojointhinsecQ3-30Ofthefollowingmetalsa.high-carbonsteel高碳鋼b.low-carbonsteelpane丙烷Q3-32Whichofthefollowingcuttingprocessescancutanymetal?a.OFC氧氣切割b.dross割渣c(diǎn).kerf割痕e.noneoftheabove以上都不是a.DCEN直流反接c.DCEP直流正接isnotinfluencedbythepresenceofmagneticfields?e.noneoftheabove以上a和bb.TT型接e.edge端接Q4-2ThetermforthetypeofjointformedwhenthetwopiecestobejplanesandtheiredgesoQ4-3Thetermforthatportionofasinglebevelbuttjointwherethetwopiecestobejoinedb.jointroot接頭根部b.rootQ4-5Thetermforthetypeofweldproducedbyfillmemberattachingittothememberbeneathis:Q4-6Thetermforthetypb.single-flare-Vgroove單面喇叭-V型坡口e.noneoftheaboveappliedtoeitheraT,comer,orlapjointis:Q4-8Thetermforthetypeofweldusedtobcorrosionprotection,orprovidealayerofabrasiQ4-9ThetermforthetypeofweldappliedtotV-grooveweldiscompletedonthenearsideofajointa.melt-throughweldb.backingweldc.backweldd.rootweld根部e.noneoftheabove以上都不是whichtheweldingwasdon焊逢頂部b.weldreinforcement焊接面蓋面焊a.rootb.weldedgec.weldreinforcementQ4-12Thetermfortheheightoftheweldfaceabovec.facea.effectivethroat有b.concaveweld下凹形焊縫c.convexweldQ4-14Whenlookingatthecrosssectionofacompletedgroovebetweenthefusionfaceandtheweldia.depthoffusion熔b.depthofpenetration熔透深度c.rootpenetration根部熔透d.jointpenetratione.effectivethroat有效焊縫厚度a.theoreticalandeffectiveb.effectiveandactuale.noneoftheabovedfromthejointroottowheretheweldpenetrationstopsis:對(duì)于部分熔透的單面V形坡口焊縫，測量從接頭根部到焊縫熔透停止處的尺b.effectivethroat有效焊縫厚度c.rootpenetration根部熔透深度d.depthoffusion熔合深度b.diameterofweldatpointofcontactc.depthofpenetratione.noneoftheabove熔合深度熔透深度a.taile.weldsymbol焊縫符號(hào)e.noneoftheabovb.weldingsymbol焊接符號(hào)d.arrow箭頭e.noneoftheabove以上都不是Q4-21WhichofthesymbolsbelowQ4-23Thesymbolbelowdepictswhattyb.flarebevelgroov焊縫尺寸根部間隙b.effectivethroat有效焊縫厚度c.depthofbevel單面斜面深度Q4-26Ifappliedtoalinthickweldjoint,theweldingsymbolbelofweld?如果應(yīng)用于1英寸板厚的焊接接頭，以下焊接符號(hào)表示的是什么焊縫類型?a.fullpenetrationdoublebevel-grooveweld完全熔透雙面單邊V形坡口焊逢b.fullpenetrationdoubleV-grooveweld完全熔透雙面V型坡口焊縫c.partialpenetrationdoublebevel-grooveweld部分熔透雙面單邊V形坡口焊逢d.partialpenetrationdoubleV-grooveweld部分熔透雙面V型坡口焊縫e.noneoftheaboveQ4-27Atriangular-shapedweldsymb三角形的焊接符號(hào)表示的是什么焊縫類型?d.V-grooveV型坡口以下焊接符號(hào)表示的是什么焊縫類型?e.noneofthe-above錯(cuò)列斷續(xù)角焊逢鏈狀斷續(xù)角焊逢部分角焊逢斷續(xù)角焊逢以上都不是Q4-29Thefirstdimensionappearingtotheimmediaterightofthew緊靠焊接符號(hào)右邊的第一個(gè)尺寸通常表示：a.weldreinforcement焊縫余高b.rootopening根部間隙c.pitchdistance間距d.weldlength焊縫長度e.noneoftheabove以上都不是在塞焊縫和槽焊縫中，放在焊縫符號(hào)內(nèi)的尺寸表示什么?a.depthoffilling填充深度b.slotweldwidth槽焊縫寬度c.plugwelddiameter塞焊縫直徑d.angleofcountersink鉆孔角度e.noneoftheabove以上都不是要求的點(diǎn)焊縫尺寸參數(shù)可以用什么表示?a.adimensiontotherightofthesymbol焊接符號(hào)右邊的尺寸c.avaluefortherequiredshearstrengthperspot要求的每一點(diǎn)剪切變強(qiáng)度值點(diǎn)焊縫符號(hào)右邊的數(shù)值表示：a.spotweldsize焊點(diǎn)尺寸b.spotweldlength焊點(diǎn)長度c.numberofspotsrequired所需要的點(diǎn)焊數(shù)目d.pitchdistancebetweenadjacentspots相鄰焊點(diǎn)之間的間距e.noneoftheabove以上都不是一個(gè)焊接符號(hào)中需要哪些要素?d.alloftheabove箭頭b和cQ4-35Theweldingsymbolbelowshowstheuseofwhattypeofcompletedweld?a.singlebevel-grooveweldwithbackingweld有打底焊縫的單面單邊V形坡b.singlebevel-grooveweldwithbac.singleV-grooveweldwithbackingwelde.noneoftheabove有封底焊縫的單邊V形坡口焊縫有打底焊縫的單面V形坡口焊縫有封底焊縫的單面V形坡口焊縫Q4-36Thesymbolbelowshowswhattypeofjointa.squaregrooveI型坡口d.scarf嵌接Q4-37Thepartoftheweldingsymbolwhichcanbeusedtoconveyanyinformationthatcannotbeshownotherwiseis焊接符號(hào)哪一個(gè)部位可以用來表示一些用其他方式無法表示的附加信息d.thetail尾部a.thelengthofweld焊縫長度b.thetypeofwelding焊接形式c.thenumberofweldsrequireda.depthofbevel斜面深度b.thelengthofweld焊縫長度c.theweldqualitystandard焊縫質(zhì)量標(biāo)準(zhǔn)d.theweldproceduretouse使用的焊接工藝Considertheweldingsymbolsbelowforquestions考慮以下焊接符號(hào)并回答問題Q4-41~Q4-44369GQ4-41Whichofthesymbolsaboverepresentsanintermittentfillet以上哪個(gè)焊接符號(hào)表示斷續(xù)角焊縫?b.8d.4e.5Q4-42Whichofthesymbolsaboverepresentsagrooveweldwithmelt-through?以上哪個(gè)焊接符號(hào)表示帶熔穿的坡口焊縫?b.3e.noneoftheabove以上都不是Q4-43Whichofthesymbolsabove以上哪個(gè)焊接符號(hào)表示不完全填滿的塞焊縫?b.3d.7e.94-44Whichofthesymbolsaboverepresentsagrooveweldwithbackingweldorbkb.2d.7第5章d.textbooks,.教科書Q5-2Ofthefollowing,wha.codes規(guī)范b.specifications技術(shù)說明Q5-3ThejobdocumentsthatbestdescribethesizeandconfigurationofaweldQ5-4Thetypeofdocumen-5ThetypeofdocumentthatdrQ5-6Somethingsetupandestablisha.specification技術(shù)說明b.standard標(biāo)準(zhǔn)Q5-7Ofthefollowingtypesofdocuments,whichhavegeneralacceptanceintheweldingc.AWSA5.1-A5.31Q5-11Whichofthefollowingmethodsforcontrollingmaterialb.alphanumericcoding數(shù)字編碼d.barcoding條形碼e.segregationbyalloy合金ASME規(guī)范中的哪一卷包括焊工技能評(píng)定?b.SectionXIb.showthetotalamounta.asavariationbetweenlimits在限定值之內(nèi)的c.noneoftheabove以上都不是a.general概要c.specifications技術(shù)說明d.alloftheabove以上都是d.noneoftheabove以上都不是testingpersonnelhaveadequate對(duì)于確保所有焊接和檢測人員有足夠的證明，焊接檢驗(yàn)員沒有責(zé)任進(jìn)行檢查的。美國焊接學(xué)會(huì)開發(fā)了多少焊接規(guī)范?Q5-19Wheninspectingunb.false錯(cuò)填充材料在ASME規(guī)范的哪一卷中?e.noneoftheaboveQ5-22Basemetalsused制作中所用母材可以符合以下哪一項(xiàng)?ASTM標(biāo)準(zhǔn)對(duì)母材沒有要求a.fillermetals填充金屬b.rulesforbridgeipelines橫穿國家的管線d.pressurevesselfabrication壓力容器e.noneoftheabove以上都不是b.containchecksandbalances包括檢查和平衡d.bebasedon"firstin-firstout"基于“第一時(shí)間進(jìn)一第一時(shí)間出”a.UnitedNondestructiveSociety美國無損檢測協(xié)會(huì)b.UnitedNationalStandards美國國家標(biāo)準(zhǔn)c.UnifiedNationalSystem統(tǒng)一的國家標(biāo)準(zhǔn)Q5-26Whoisnormallyresponsibleforthequalificationofweldingwelders?通常由誰負(fù)責(zé)焊接工藝和焊工的評(píng)定?a.welder焊工b.architect建筑師d.engineer工程師e.Codebody規(guī)范Q5-27Whichofthefollowingprocesses根據(jù)AWSD1.1,以下種焊接工藝不被認(rèn)為可以免除評(píng)定?b.submergedarc埋弧焊rprocedureandwelderqualificationtesting?以下哪類試樣，是用以進(jìn)行API而不是ASME的工藝和焊工評(píng)定試驗(yàn)?e.tensile拉伸horizontal,sotheweldermustweldab.2Gb.2GQ5-31Whatisthepipepositiontestforwelderswhoaretryingtb.2GQ5-32IfawelderqualifiestoweldwithanE6010eb.E6012Q5-33Withrelationtoprocedureandwelderqualification,whichofthefollowingcanbeanimportanttaskfortheweldia.watchingtheweldingqualificationtest觀測焊接評(píng)定試驗(yàn)b.identifyingsamples鑒別試樣Q5-34Formostcodes,ifaweldercontinuestouseaparticulongdoesthewelder'squalificatioa.indefinitely不確定第6章Q6-1Thepropertyofmetalsthatdescribestheirresista.strength強(qiáng)度b.toughness韌性d.ductility延展性Q6-2Thepropertyofmetalsthata.strength強(qiáng)度b.toughness韌性d.ductility延展性Q6-3Generally,asstrengthincreasesa.increases增加b.staysthesame沒有變化c.decreases減少a.strength強(qiáng)度b.toughness韌性d.ductility延展性pressive壓力c.torsional扭力d.impact沖擊力e.fatigue疲勞強(qiáng)度b.tensiletesting拉伸試驗(yàn)c.hardnesstesting硬度試驗(yàn)a.conductivityandstrengb.strengthandductility強(qiáng)度和延展性c.strengthandhardness強(qiáng)度和硬度d.ductilityandtoughness延展性和韌性a.strength強(qiáng)度c.hardness硬度d.toughness韌性e.noneoftheabove以上都不是a.tensilestrength抗拉強(qiáng)度b.UTS極限抗拉強(qiáng)度c.hardness硬度d.fatiguestrength疲勞強(qiáng)度tonthepropertiesandperformanceofcarbonsteel?d.chromium鉻c.cracking裂紋a.ultimatetensilestrength極限抗b.percentelongation延伸率d.impactstrength沖擊強(qiáng)度e.yieldstrength屈服強(qiáng)度Q6-14Ametal'sductilitycanb.percentreductionofarea斷面收縮率一個(gè)抗拉強(qiáng)度的試樣，截面為0.25平方英寸，在受到15250lbs的載荷時(shí)斷裂，那么,此試樣的抗拉強(qiáng)度是多少?(抗拉強(qiáng)度=載荷/面積)b.61000psie.noneoftheabove以上都不是Q6-16Thepointatwhichametal'Sbehaviorchangesfromelastictoplastic(on金屬材料從彈性變形到塑性變形(永久變形的開始)的那一點(diǎn)稱為：a.yieldstrength屈服強(qiáng)度b.ultimatetensilestrength極限抗拉強(qiáng)度d.Young'smodulus楊氏模量試樣的原始長度是2in,最終長度是2.5in,那么該試驗(yàn)的延伸率是多少?b.25%e.noneoftheabove以上都不是Q6-18Thefamilyofhardnesa.Brinell布氏硬度b.Vickers維氏硬度c.Rockwell洛氏硬度d.Knoop努普顯微壓痕硬度試驗(yàn)a.Rockwell洛氏硬度b.Vickers維氏硬度c.Knoop努氏硬度Q6-20Whattypeoftestusesaweightedpendulumwhichstrikesanotchedtest以下哪類測試方法是利用擺錘來沖擊試樣的缺口?a.Brinelltes布氏硬度試驗(yàn)b.fatiguetest疲勞試驗(yàn)c.tensiletest拉伸試驗(yàn)d.microhardnesstest顯微硬度試驗(yàn)e.Charpyimpacttest夏比沖擊試驗(yàn)a.fatigue疲勞試驗(yàn)b.hardness硬度試驗(yàn)c.soundness完好性試驗(yàn)d.tension拉伸試驗(yàn)a.tensilestrength抗拉強(qiáng)度c.hardness硬度d.toughness韌性a.hardness硬度試驗(yàn)c.filletbreak角焊縫斷裂Q6-24Thetypeoftestingusedtoevaluatethetypeb.hardness硬度試驗(yàn)c.toughness韌性d.metallographic金相試驗(yàn)Q6-25Whichofthefollowingtestscanbeusedtojudgethesoundnessofaweld?Q6-26Whichofthefollowingtestswillgenerallybeusedtodeterminea.guided-bendtest導(dǎo)向彎曲試驗(yàn)c.Chamyimpacttest夏比沖擊試驗(yàn)e.alloftheabove以上都是Q6-27Withrespecttotherollingdirectionofsteelplatemanufacture,whichstatementc.Thestrengthishighestinthe'X'direction.X方向強(qiáng)度最高d.Thestrengthishighestinthe'Y'direction.Ye.Thestrengthislowestinthe'Y'directionY方向強(qiáng)度最低b.ductilityoftheweldmetal焊縫金屬的延展性c.impactstrengthoftheweld焊縫沖擊強(qiáng)度e.noneoftheabove以上都不是ofmetals.Q6-30Forplaincarbonsteels,theirapproximatemultiplyingtheirB算?b.300a.ductility延展性b.toughness韌性d.impactstrength沖擊強(qiáng)度e.noneoftheabove以上都不是additionwouldbe:b.carbon碳Q6-34Hydrogen,oxygen,andnitrogencanallcac.spacedasetdistanceapartd.usedforcalculatinb.tensilestrength抗拉強(qiáng)度c.hardness硬度e.impactstrength沖擊強(qiáng)度Q6-39InCharpytesting,thetesttempera.notimportant不重要的b.veryimportant很重要c.notconsidered不需要進(jìn)行考慮的d.neverreported沒有提及過在夏比沖擊試驗(yàn)中，試驗(yàn)數(shù)據(jù)是以什么方式報(bào)告：b.lateralexpansion橫向膨脹d.alloftheabove以上都是第7章Q7-1A50.01bcanofweldingelectrodesweighshowmanykg?Q7-2AweldjointismeasurQ7-4Whichofthefollowingaretheproperbaseunitb.kilogram千克當(dāng)氣體的流速為30cfh時(shí)，換算成升/分鐘(1/m第8章a.energyisaddedtothestrc.theatomsvibratemorevigorously原子更加激烈的運(yùn)動(dòng)d.themetalexpands母材膨脹a.solid固體b.liquid液體Q8-3Aproblemoccurringinwetheweldingoperationb.incompletefusion未熔合c.distortion變形d.slaginclusions夾雜e.noneoftheabove以上都不是Q8-4Whichofthefollowingisnotamethodusedtoeliminateorrea.vibratorystressrelief震動(dòng)消除壓力c.thermalstressrelief加熱消除應(yīng)力d.peeninge.annealing退火atomsoftheparentmetalisreferredtoas:b.substitutionalalloying置換合金b.carbide碳化物Q8-7Veryslowcoolingofsteelmayresultintheproductionofasomicrostructurewhichhasalamellarappearancewhenviewedunder鋼很慢冷卻時(shí)會(huì)產(chǎn)生軟的易延展的微觀結(jié)構(gòu)，通過高倍放大鏡下可以看到其a.martensite馬氏體c.bainite貝氏體d.ferrite鐵素體Q8-8Whenrapidcoolmaybeappliedtoimprovetheductilityofthesteel?a.quenching淬火b.tempering回火c.annealing退火e.noneoftheabove以上都不是ofthechangeslistedbelowwouldresultinareductionoftheheatinput?當(dāng)被認(rèn)定焊接工藝會(huì)造成較大熱輸入的時(shí)候，下列哪個(gè)方法可以減小熱輸入?b.decreasevoltage減少焊接電壓e.alloftheabove以上都是Q8-10Theuseofpreheatwillta.resultinawiderheat-affectedzone可以造成更寬的熱影響區(qū)ducelowerheat-affectedzonehardness減小熱影響區(qū)的硬度d.reducethetendencytoproducemartensiteintheheat—affectedzone減小熱e.alloftheabove以上都是c.increasedbasemetalthickness增加母材厚度Q8-12Whatheattreatmenttemperatureforsometima.normalizing正火b.quenching淬火c.anneallng退火d.tempering回火e.stressrelief應(yīng)力釋放Q8-13Whatheattreatmenta.normalizing正火b.quenching淬火c.annealing退火Q8-14Steelheatedabovemetallurgicalstructure.Thistemperatureis:將鋼加熱而高于較低的轉(zhuǎn)變溫度(A1)的時(shí)候可以改變母材的冶金結(jié)構(gòu)。這a.1333°F1333華氏度b.933°F933華氏度d.3600°C3600攝氏度Q8-15Atomsinthesoli原子在固體(凝固)狀態(tài)b.havenodistinctstructure沒e.noneoftheabove以上都不是d請(qǐng)計(jì)算相應(yīng)的熱輸入：焊接速度為5英寸/分鐘，電壓為25伏，電流為100安培(請(qǐng)參照練習(xí)題后面所附的計(jì)算公式)a.peening錘擊d.solidification凝固e.sensitizing光敏處理Q8-18Theprocesswherecarbonisaa.decarburization脫碳b.packcarburizing固體滲碳c.precipitationhardening淀積硬化d.quenching淬火d.alloftheabove以上都是Q8-20Whichofthefollb.stressrelieving應(yīng)力釋放d.annealing退火Q8-21Whichofthefollowingcanbeaccomplishedusingeitherthermalormecha以下哪一種能夠或者用加熱，或者機(jī)械的技術(shù)予以完成?a.annealing退火b.tempering回火c.quenching淬火d.stressrelieving應(yīng)力釋放以下哪一種加工可以導(dǎo)致碳鋼成最軟的狀態(tài)?a.annealing退火b.quenclalng淬火e.normalizing正火carbon,0.84%manganese,0.09%nickel,0.25%chromium,0.052%copper,and一個(gè)鋼的化學(xué)成分如下：碳0.16%,錳0.84%,鎳0.09%,鉻0.25%,銅0.052%,鉬0.40%,請(qǐng)計(jì)算其碳當(dāng)量?b.0.34按定義，不銹鋼的最少含鉻量為多少?b.12%c.15%Q8-25Sensitization,orcarbideprecipibywhichofthefollowingmethods?通過以下哪種方法，可以減少奧氏體不銹鋼的敏化或碳化物沉淀?a.solutionannealing,waterquenching固溶退火，水中淬火d.alloftheabove以上全都是e.usinghighcarbonstainlesssteels應(yīng)用高碳不銹鋼a.truea.sensitization7b.nitrogenremoval脫氮e.noneoftheabove以上都不是Q8-30Weldingmetallurgyiscc.alwaysacceptable總是合格的d.rejectableifitexceedscodelimits如果超過了規(guī)范的限定，則不合格特定的焊縫不連續(xù)是否處于臨界，可在下述基礎(chǔ)上予以判定：b.Whetheritislinearornonld.alloftheabovee.noneoftheabove是否是表面的，或表面下是否是線性，或非線性是否端部呈尖銳狀態(tài)以上都是以上都不是哪種缺陷一般被認(rèn)為是最嚴(yán)重的?a.porosity氣孔b.incompletefusion未熔合c.slaginclusion夾渣d.crack裂紋e.arcstrike電弧引燃以下的那種不連續(xù)不可能由目檢發(fā)現(xiàn)?a.toecrack