cwi考試1parta 練習(xí)題及答案
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1、 CWI考試1PARTA 練習(xí)題及答案 Welding Inspection Technology Workbook 焊接檢驗(yàn)技術(shù) 練習(xí)題 (練習(xí)題按教材10章的順序排列, 后附: 美國慣用單位制和公制轉(zhuǎn)換表, 答案附于最后) 第1章 焊接檢驗(yàn)和取證 Q1-1 Why is there an increasing need for weld quality? 為什么焊接質(zhì)量的要求越來越高? a. safety安全 b. economics經(jīng)濟(jì) c. 1ess conservative design較少保守的設(shè)
2、計(jì) d. government regulations政府規(guī)定 e. all ofthe above以上皆是 Q1-2 What AWS document describes the rules for the CWI certification program? 哪份AWS文件闡述了CWI 證書程序規(guī)定? a. AWS 5.5 b. AWS D1.1 c. AWS QCl d. AWS 5.1 e. AWS 14.1 Q1-3 Weld quality control should begin after welding has b
3、een initiated. 焊接質(zhì)量控制應(yīng)在焊接已經(jīng)開始后進(jìn)行。 a.true正確 b.false錯(cuò)誤 Q1-4 What are the three welding inspector certifications covered in AWS QC l? AWS QC1中包括的三種焊接檢驗(yàn)證書是哪三種? a.CAWI, CWI, BWI b.CWI, CAWI, SCWI c.SCWI, CWI, ACWI d.Levels I,II,and III e.None of the above以上都不是 Q1-5 What i
4、s generally considered to be the most important quality of a welding inspector? 焊接檢驗(yàn)員最重要的素質(zhì)是什么? a.graduation from a welding vocational program 畢業(yè)于焊接專業(yè) b.an engineering degree 工程師職稱 c.an associates’degree 助理職稱 d.professional attitude 職業(yè)態(tài)度 e.hold a certified welder certificate 擁有注冊的焊
5、工證書 Q1-6 The vision requirements for a CWI are near vision acuity on: CWI 視力要求與哪一項(xiàng)最接近: a.Jaeger J1 at not less than 24 in Jaeger J1不少于24英寸 b.Jaeger J2 at not less than 12 in Jaeger J2不少于12英寸 2 c.Jaeger J2 at not less than 12 in, with or without corrective lenses Jaeger J2不少于12英寸,矯正
6、與否都可 d.the inspector cannot wear glasses 檢驗(yàn)員不能佩戴眼鏡 e.20/20 vision 20/20 視力 Q1-7 The acronym KASH stands for: 縮略語 KASH表示: a. knowledge,attitude,skills,and habits 知識(shí),職業(yè)態(tài)度,技能和習(xí)慣 b. knowledge,application,skills,and habits 知識(shí),應(yīng)用,技能和習(xí)慣 c. knowledge,attitude,skills,and honesty 知識(shí), 職業(yè)態(tài)度,技能
7、和誠實(shí) d. knowledge,application,skills,and honesty 知識(shí),應(yīng)用,技能和誠實(shí) e. knowledge,attitude,sincerity,and honesty 知識(shí), 職業(yè)態(tài)度,真誠和誠實(shí) Q1-8 The welding inspector should have a basic understanding of: 焊接檢驗(yàn)員應(yīng)掌握的基本知識(shí)為: a.welding processes焊接方法 b.nondestructive testing methods無損檢測方法 c.a and b above以上a和
8、b d.codes and standards規(guī)范和標(biāo)準(zhǔn) e.all of the above以上皆是 Q1-9 The term used to describe a delay in the production schedule to permit inspection is: 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.hold point 停止點(diǎn) c.preinspection 預(yù)檢測 d.reference point相關(guān)點(diǎn) e.arc strike電弧觸發(fā) Q1-10 Inspection rep
9、ort corrections should be made by: 檢驗(yàn)報(bào)告的修改應(yīng)這樣進(jìn)行: a.rewriting the entire report 重寫整份報(bào)告 b.reporting the correction to the welding foreman 將修改部分給焊工領(lǐng)班 c.telling the welder what was done 將修改的內(nèi)容告知焊工 d.ignoring the original error忽略原先的錯(cuò)誤 e.single-line out the error,correct the error,date,and
10、initial 用單線標(biāo)出錯(cuò)誤,修正錯(cuò)誤,注明日期并簽名 Q1-11 A definition of ethics is: 道德的定義是: a.using common sense and honesty 常規(guī)的誠實(shí)觀 b.1iving by the rules 按規(guī)定辦事 c.being fair and impartial 公平并公正 d.basing decisions on facts 依據(jù)事實(shí)作出結(jié)論 3 e.all of the above以上皆是 Q1-12 For communications to be effect
11、ive, it should form a“continuous loop.” 為使溝通有效, 應(yīng)使之形成”連續(xù)循環(huán)網(wǎng)絡(luò)” a.true正確 b.false錯(cuò)誤 Q1-13 The welding inspector must often communicate with: 焊接檢驗(yàn)員應(yīng)經(jīng)常與之溝通的是: a.welders焊工 b.supervisors監(jiān)督人員 c.welding engineers焊接工程師 d.members of management 管理人員 e.all of the above 以上皆是 Q1
12、-14 NDE personnel (other than CWIs) are typically certified to what document? NDE人員(而非CWI) 依據(jù)哪份文件頒發(fā)證書? a.AWS QC l b.AWS D1.1 c.API 1104 d.ASNT SNT-TC-1A e.certification is not needed無需證書 Q1-15 You must have a high school diploma to become a CWI. 你要想成為CWI, 必須有高中的學(xué)歷證書。 a.tru
13、e正確 b.false錯(cuò)誤 Q1-16 The CWI exam has several parts;these are: CWI考試有幾部分,它們是: a.fundamentals,practical,code 基礎(chǔ), 實(shí)際操作, 規(guī)范 b.fundamentals,basic,code 基礎(chǔ), 要素, 規(guī)范 c.basic, vision test, fundamental 要素, 視力檢查, 基礎(chǔ) d.code,vision test,practical 規(guī)范, 視力檢查,實(shí)際操作 e.none of the above 以上都不是
14、Q1-17 The CWI exam requires that the AWS D1.1 Code be used for the open book code test. CWI考試中, AWS D1.1規(guī)范用作規(guī)范開卷考試使用的書本。 正確 錯(cuò)誤 Q1-18 The CWI exam contains three parts. 4 CWI考試包括三部分。 a.true正確 b.false錯(cuò)誤 Q1-19 The title of the AWS standard A3.0 is: AWS 標(biāo)準(zhǔn)A3.0的標(biāo)題是: a.
15、Filler Metal Specifications填充金屬技術(shù)條件 b.Standard Welding Terms and Definitions 標(biāo)準(zhǔn)焊接術(shù)語和定義 c.Guide to CWI Certification CWI取證指南 d.Requirements for CWI Certification CWI取證要求 e.none of the above以上都不是 Q1-20 API Standard 1104 covers the fabrication of cross-country bridges. API 標(biāo)準(zhǔn)1104包括橫穿全
16、國的橋梁的制作。 a.true正確 b.false錯(cuò)誤 Q1-21 Some of the approved codes/standards for the open book portion of the CWI exam are AWS D1.1, API 1104,AWS D1.5, and AWS D15.1. 得到批準(zhǔn)的CWI開卷考試的一些規(guī)范/標(biāo)準(zhǔn)為:AWS D1.1, API 1104, AWS D1.5和AWS D15.1. a.true 正確 b.false 錯(cuò)誤 Q1-22 Prior to starting a job as
17、signment, the welding inspector should determine: 開始執(zhí)行分配的工作前, 焊接檢驗(yàn)員應(yīng)確定: a.what code,standard,or specification applies 使用何種規(guī)范,標(biāo)準(zhǔn)或技術(shù)條件. b.what inspections should be conducted 應(yīng)該進(jìn)行什么檢驗(yàn). c.when inspections should be conducted 應(yīng)該何時(shí)進(jìn)行檢測 d.where records are maintained 記錄保存于何處 e.all of the ab
18、ove 以上皆是 5 第2章 安全操作和焊接檢驗(yàn) Q2-1 The welding inspector is exposed to which of the following safety hazards: 焊接檢驗(yàn)員暴露于以下何種安全危害之中: a.radiation輻射 b.falling objects墜落物 c.electrical shock 觸電 d.eye hazards眼睛傷害 e all of the above以上皆是 Q2-2 A document which covers safety in welding
19、and cutting is: 包括焊接和切割的安全的文件是: a.AWS D1.1 b.API 1104 c. ANSI Z49.1 d.ASME Section VIII e.ASME B31.3 Q2-3 The most important component of an effective safety and health program is: 有效的安全和健康程序中最重要的是: a.safety rules 安全規(guī)則 b.safety procedures 安全程序 c.protective eqmpment 保
20、護(hù)工具 d.welding helmet 焊接頭盔 e.management support 管理層的支持 Q2-4 Safety training is mandated under provisions of: 安全培訓(xùn)基于哪項(xiàng)標(biāo)準(zhǔn): a.AWS“Safe Practices” AWS的”安全操作” b.OSHA OSHA c.ASME Code ASME 規(guī)范 d.Welding Handbook,Volume 2 焊接手冊第二卷 e.none of the above 以上都不是 Q2-5 The abbreviation‘M
21、SDS’means: 縮略語 MSDS表示: a.Management Support and Daily Safety 管理支持和日常安全 b.Material Strength and Discontinuity Sheet 材料強(qiáng)度和缺陷報(bào)告單 c.Material Safety Data Sheet 材料安全數(shù)據(jù)單 d.Material Strength and Data Sheet 材料強(qiáng)度和數(shù)據(jù)單 6 e.none of the above 以上都不是 Q2-6 The abbreviation‘TLV’means: 縮略語TLV表示什么:
22、 a.Total Linear volume總線性量 b.Threshold Limit Value 限值 c.Tack Length Value 定位長度值 d.Threshold Limiting Valve 極限數(shù)據(jù) e.none of the above 以上都不是 Q2-7 Employers must make all applicable MSDS data available to their employees. 雇主必須將所有適用的MSDS數(shù)據(jù)告知其雇員。 a.true正確 b.false錯(cuò)誤 Q2-8 Personne
23、l must be trained to recognize safety hazards. 人員必須進(jìn)行培訓(xùn)以認(rèn)知安全危害。 a.true正確 b.false錯(cuò)誤 Q2-9 A‘Hot Work Permit’is required for: “高溫許可”適用于: a.all welding operations 所有焊接操作 b.all cutting operations 所有切割操作 c.all preheating operations 所有預(yù)熱操作 d.areas where a fire hazard may occur du
24、ring a welding,cutting,or preheating operation 所有可能引發(fā)火災(zāi)的焊接,切割或預(yù)熱操作區(qū)域中. e.all of the above以上皆是 Q2-10 Eye hazards found in welding operations include: 焊接操作中對眼睛的傷害包括: a.flying particles飛濺物 b.radiation輻射 c.smoke and fumes煙塵 d all of the above以上皆是 Q211 Protective equipment n
25、ot suitable for eye protection from welding radiation includes: 對于焊接輻射,不能保護(hù)眼睛工具是: a.welding helmets with filter plates 裝有濾光鏡片的焊接頭盔 b.clear safety goggles 透明護(hù)目鏡 c.safety goggles with filter plates 裝有濾光鏡片的護(hù)目鏡 7 d.protective screens 保護(hù)屏障 e.properly positioned barricades 合理設(shè)置的屏蔽
26、 Q2-12 Suitable clothing materials for welding and cutting are: 焊接和切割時(shí)合適的衣著材料為: a.65%cotton,35%polyester65%棉, 35%滌綸 b.Wool 羊毛 c.chemically treated cotton 經(jīng)化學(xué)處理的棉 d.b and c above 以上b和c e.none of the above以上都不是 Q2-13 Before working on equipment where machinery guards have been r
27、emoved,a ‘Lock,Tag,and Try’procedure should be completed. 在機(jī)械保護(hù)已拆除的設(shè)備上工作之前,應(yīng)該完成“關(guān)斷、標(biāo)識(shí)和嚴(yán)禁啟動(dòng)”。 a.true正確 b. false錯(cuò)誤 Q2-14 In avoiding fumes during welding, the most important factor is: 避免焊接煙塵, 最重要的要素是: a.the type of base metal 母材的種類 b.the type of filler metal 填充物的種類 c.the ty
28、pe of welding process 焊接方法的種類 d.the position of the welding machine 焊接機(jī)器的位置 e. the position of the welder’s head 焊工頭部所處位置 Q2-15 It is not important to consider ventilation during welding and cutting operations. 焊接和切割操作中通風(fēng)并不重要。 a.true正確 b. false錯(cuò)誤 Q2-16 When entering confined spa
29、ces,a‘standby’is not required. 進(jìn)入密閉空間, 無需設(shè)置救援人員。 a.true正確 b.false錯(cuò)誤 Q2-17 Some of the toxic materials the welder may be exposed to are 焊工可能暴露于一些有毒物質(zhì)中,它們是: a.cadmium鎘 b.chromium鉻 c.nickel 鎳 d.1ead 鉛 e.all of the above以上皆是 Q2-18 Proper usage and handling of compressed
30、gas cylinders include: 8 確當(dāng)?shù)厥褂煤筒僮鞲邏簹馄堪ǎ? a.not welding on cylinders 不在容器上進(jìn)行焊接 b.not including the cylinders in the ground or electrical circuit 不將容器作接地用,或不將其接入電路. c.securing them properly 合理地保護(hù) d.identifying the gas prior to use 在使用氣體之前進(jìn)行確認(rèn) e.all of the above 以上皆是 Q2-19 Acety
31、lene becomes unstable above what pressure? 乙炔高于什么壓力時(shí)會(huì)變得不穩(wěn)定? a. 5 psi b. 10 psi c. 15 psi d. none of the above 以上都不是 Q2-20 Oxygen is a flammable gas. 氧氣是可燃?xì)怏w。 a.true正確 b.false錯(cuò)誤 Q2-21 Electric currents above approximately 6 milliamperes are considered: 6毫安的電流被認(rèn)為是:
32、a.not harmful 無害 b.primary currents 主要電流 c.harmful 有害 d.secondary currents 次電流 e.b and c above 以上b和c Q2-22 When operating gas cylinders ,the primary valve should be opened: 操作氣瓶時(shí),主閥應(yīng)打開: a.all the way on an acetylene cylinder通向乙炔氣瓶的所有通道 b.one turn on an oxygen cylinder 開啟一個(gè)氧氣缸
33、 c.one turn or less on an acetylene cylinder 轉(zhuǎn)一圈或更少的開啟乙炔瓶 d.a11 the way on an oxygen cylinder to backseat the valve 所有由氧氣瓶通向次要的閥門 e.c and d above c和d 9 第3章 金屬連接和切割的方法 Q3-1 Which of the following is a function of the flux coating of a SMAW electrode? 以下什么是SMAW焊條藥皮的作用? a.insulating 絕
34、緣 b.alloying 合金化 c.deoxidation 脫氧 d.shielding 保護(hù) e. all of the above 以上都是 Q3-2 In the AWS system of SMAW electrode designations, the next to the last digit refers to: 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 思: a.impact strength 沖擊強(qiáng)度 b.electrode coating 藥皮特性 c.welding posi
35、tion 焊接位置 d.strength 強(qiáng)度 e.none of the above 以上都不是 Q3-3 Which of the following is an incorrect statement about a SMAW electrode designated as E7024? 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)? a.It is a low hydrogen type. 這是個(gè)低氫型焊條 b.The weld deposit has a minimum tensile strength of 7
36、0 000 psi. 熔敷金屬的最小抗拉強(qiáng)度為70 000 PSI. c.It is suitable for use in the flat and horizontal fillet positions only. 此焊條只適用與平焊和角焊縫橫焊位置. d.It is an electrode for welding carbon steel. 焊條適用于碳鋼焊接 e.none of the above 以上都不對 Q3-4 Of the following which is not an essential part of a typica
37、l SMAW system? 以下哪部分不是典型的SMAW特點(diǎn)? a.constant current power supply 提供恒值電流 b.wire feeder 采用送焊條裝置 c.covered electrode 藥皮焊條 d.electrode lead 焊條接電 10 e.work lead 工件接電 Q3-5 Which of the following welding problems is the result of a distorted magnetic field that deflects the welding
38、arc? 在磁場發(fā)生扭曲時(shí)產(chǎn)生的電弧偏斜會(huì)導(dǎo)致以下哪些問題的發(fā)生? a.cracks 裂紋 b.short circuiting 短路 c.arc blow 電弧偏吹 d.insufficient welding current 焊接電流不足 e.all of the above 以上都不對 Q3-6 Which of the following is not considered a type of metal transfer for GMAW? 以下什么不是GMAW的熔滴過渡類型? a.short circuiting 短路 b.sp
39、ray 噴射 c.globular 球狀 d.droplet 小滴 e.pulsed arc 脈沖弧 Q3-7 Which of the following types of metal transfer in GMAW provides the lowest amount of heat to the work piece,and therefore is prone to incomplete fusion? 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? a.short circuiting 短路 b.spray 噴射
40、c.globular 球狀 d.droplet 水滴 e.pulsed arc 脈沖電弧 Q3-8 Which of the following gases can be used as shielding gases for GMAW? 下列哪些可以用做GMAW的保護(hù)氣體? a.carbon dioxide 二氧化碳 b. argon-oxygen 氧氣-氬氣 c.argon-carbon dioxide 氬氣-二氧化碳 d.argon 氬氣 e.all of the above 以上皆是 Q3-9 What type of wel
41、ding process is pictured below? 下圖所示的是哪種焊接方法?. a.SMAW b.GMAW c.FCAW d.SAW e.ESW 11 Q3-10 Which of the following is not considered an arc welding process? 以下哪些焊接方法不是電弧焊接? a.SMAW 藥皮焊條電弧焊 b.GMAW 熔化極氣體保護(hù)焊 c.FCAW 藥芯焊絲電弧焊 d.ESW 電渣焊 e.none of the above 以上都不是 Q3-
42、11 In the electrode designation system for FCAW,the second digit (1) in an electrode marked (E71T-5) refers to: FCAW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.welding position 焊接位置 c.chemical composition 化學(xué)成分 d.usability 適用性 e.none of the above 以上都不是 Q3-12 Which of
43、 the following is not always an essential element of an FCAW system? 以下哪些不總是FCAW焊接系統(tǒng)的基本要素? a.constant voltage power supply 恒壓 b.tubular electrode 管狀焊絲 c.wire feeder 送絲裝置 d.external shielding gas 外部保護(hù)氣體 e.work lead 工件接電 Q3-13 What aspect of the GTAW and PAW processes makes them diff
44、erent from the other arc welding processes? 鎢極氬弧焊與等離子弧焊與其它電弧焊接的不同在于? 12 a.nonconsumable electrode 非消耗電極 b.power supply 電源 c.shielding 氣體保護(hù) d.all of the above 以上皆是 e.none of the above 以上都不是 Q3-14 Shielding for the GTAW and PAW processes is primarily accomplished through the
45、 use of: 鎢極氬弧焊與等離子焊的保護(hù)主要用什么來實(shí)現(xiàn)? a.granular flux 顆粒焊劑 b.slag 熔渣 c.1nert gas 惰性氣體 d.oxygen 氧氣 e.none of the above 以上都不是 Q3-15 A green stripe on a tungsten electrode designates: 在鎢電極標(biāo)識(shí)上的綠色條紋表示的是 a.pure tungsten 純鎢 b.1% thoriated tungsten 含1%的的鎢 c.2%thoriated tungsten 含2
46、%的鎢 d.zirconiated tungsten 氧化鋯鎢 e.none of the above 以上都不是 Q3-16 When welding aluminum with the GTAW process,what type of welding current is most commonly used? 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 c.AC 交流電 d.a and b above 以上 a和b e.b and C above 以上 b和
47、c Q3-17 SAW and ESW processes are similar in that: 埋弧焊和電渣焊的相似處在于: a.both are an arc welding process 都采用電弧焊接方法 b.both use shielding gases 都使用保護(hù)氣體 c.both use a granular flux,which becomes molten 都使用顆粒狀焊劑,它們成為熔化狀態(tài) d.a and b above 以上a和b e.a and c above 以上a和c Q3-18 The diagram
48、below depicts what welding process? 下圖描述的是哪種焊接方法? a.SMAW 13 b.ESW c.FCAW d.SAW e.GMAW Q3-19 Solidification cracking due to improper width-to-depth ratio of the weld bead is a serious problem primarily with which welding process? 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.SMAW
49、b.OFC c.SAW d.all of the above 以上皆是 e.none of the above 以上都不是 Q3-20 Which one of the following processes is typically used in the fiat position unless special apparatus is employed? 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? a.GMAW b.SAW c.FCAW d.SMAW e.GTAW Q3-21 Which of the
50、 following are not common to both GTAW and PAW? 對于GTAW和PAW,以下什么不是它們共有的? a.nonconsumable tungsten electrode 非熔化鎢極 b.constricting orifice 壓縮噴嘴 c.shielding gas nozzle 保護(hù)氣體噴嘴 d.externally applied filler metal 外部施加填充金屬 e.none of the above 以上都不對 14 Q3-22 What technique is employed
51、with PAW to produce full penetration welds without a bevel edge preparation? PAW的什么技術(shù)能在不制備坡口情況下達(dá)到完全熔透? a.stringer beads 窄焊道 b.weave beads 擺動(dòng)焊道 c.keyhole 小孔 d.back-step 襯墊 e.none of the above 以上都不是 Q3-23 What welding process produces welds in a single pass,with the progression
52、 uphill along the joint? 什么焊接方法沿著接頭向上,以單道焊縫的形式上完成焊接過程? a.SAW b.ESW c.FCAW d.a and b above 以上 a和 b e.b and c above 以上 b 和c Q3-24 Which of the following is not an advantage of the ESW process? 以下什么不是ESW的優(yōu)點(diǎn)? a.high deposition rate 高熔敷率 b.ease of setup 設(shè)置簡單 c.capable
53、of joining thick sections 能焊接厚板 d.no tendency for angular distortion 無角變形趨勢 e.none of the above 以上都不是 Q3-25 Which welding process is considered to be a chemical welding process? 以下哪種焊接方式被認(rèn)為是化學(xué)焊接方法? a.SMAW b.ESW c.SAW d.OAW e.none of the above 以上都不是 Q3-26 which arc weldi
54、ng process provides a very efficient means of joining attachments to some planar surfaces? 以下哪種焊接方法在某些平整表面上高效率地焊著附件? a.0AW b.SW c.GMAW d.GTAW e.SMAW 15 Q3-27 Brazing differs from welding in that: 釬焊與其他焊接不同的在與: a.no filler metal is used 不用填充金屬 b.an oxyfuel flame is
55、 used 使用氧焰 c.the base metal is not melted 母材不熔化 d.all of the above 以上皆是 e.none of the above 以上都不是 Q3-28 For satisfactory results,a braze ioint should have: 為了得到良好的效果,釬焊接頭應(yīng)具備: a.clean joint surfaces 清理接頭表面 b.a small clearance between pieces to be joined 連接件間小的間隙 c.a large surface ar
56、ea for the joint area 接頭有大的連接面 d.heat source 熱源 e.all of the above 以上皆是 Q3-29 Which of the following is an advantage of brazing? 釬焊的優(yōu)點(diǎn)是? a.ease of joining thick sections 容易連接厚截面 b.ability to ioin dissimilar metals 能連接兩種不同的金屬 c.ability to join thin sections 薄板連接容易 d.a and b above 以上
57、 a和b e.b and c above 以上 b和 c Q3-30 Of the following metals,which cannot be efficiently cut using OFC? 不能有效的使用氧氣切割的金屬是? a.high-carbon steel 高碳鋼 b.1ow-carbon steel 低碳鋼 c.medium-carbon steel 中碳鋼 d.austenitic stainless steel 奧氏體不銹鋼 e.none of the above 以上都不是 Q3-31 Which of the fol
58、lowing gases can be used to perform OFC? 以下什么氣體能用于氧氣切割? a.methylacetylene-propadiene(MPS) 乙炔-丙烯 b.propane 丙烷 c.acetylene 乙炔 d.methane(natural gas) 甲烷 e.all of the above 以上皆是 Q3-32 Which of the following cutting processes can cut any metal? 以下哪種切割方法可切割任何金屬? a.OFC 氧氣切割 16 b.
59、CAC-A 空氣碳弧切割 c.PAC 等離子弧切割 d.a and b above 以上 a 和b e.b and c above 以上 b和 c Q3-33 The width of a cut is referred to as the: 切割寬度和什么有關(guān): a.gap 空隙 b.dross 割渣 c.kerf 割痕 d.drag 后拖量 e.none of the above 以上都不是 Q3-34 The SMAW power source can be: 手工焊的電源可以為: a.DCEN 直流反接
60、 b.AC 交流 c.DCEP 直流正接 d.all of the above 以上皆是 e.a and c above 以上 a和c Q3-35 Of the following,which is a noncontact welding process,requires no electrodes,and is not influenced by the presence of magnetic fields? 以下哪種焊接方法是非接觸焊接方法,不需要電極,并且不受磁場的影響? a.ESW b.PAW c.LBW d.a and
61、b above 以上 a 和b e.none of the above 以上都不是 Q3-36 Which of the following uses a focused beam of electrons as a heat source for fusion welding? 以下哪種焊接方法采用聚焦電子束作為熔化焊熱源? a.EBW b.ESW c.EGW d.a and c above 以上 a 和c e.none of the above 以上都不是 17 第4章 焊接接頭形狀和焊接符號(hào) Q4-1 Which o
62、f the following is not considered a type of joint? 以下哪一項(xiàng)不屬于接頭形式? a.butt 對接 b.T T型接 c.fillet 角焊縫 d.corner 角接 e.edge 端接 Q4-2 The term for the type of joint formed when the two pieces to be joined lie in parallel planes and their edges overlap is: 當(dāng)兩塊板呈平行連接,且它們的棱邊搭接,這種類型的接頭的術(shù)
63、語是: a.Corner 角接 b.T T接 c.edge 端接接頭 d.1ap 搭接 e.butt 對接 Q4-3 The term for that portion of a single bevel butt joint where the two pieces to be joined come closest together is: 兩塊單面坡口的板對接,被連接的兩片,表示其位置靠得最近的術(shù)語是: a.radius 坡口半徑 b.joint root 接頭根部 c.bevel angle 坡口面角度 d.gro
64、ove angle 坡口角度 e.none of the above 以上都不是 Q4-4 In a single V-groove weld,the term for the sloped surfaces against which the weld metal is applied is: 在單面V型坡口焊縫中,表示要填充焊縫金屬的那個(gè)斜面的術(shù)語是: a.root face 鈍邊 b.root 焊縫根部 c.groove faces 坡口面 d.groove angle 坡口角度 e.bevel angle 坡口面角度 Q4-5
65、 The term for the type of weld produced by filling an elongated hole in an overlapping member attaching it to the member beneath is: 兩塊重疊的板,疊在上面的部件上開長孔,在孔中焊接而填滿得到的焊縫,這種 焊縫的術(shù)語是: a.plug weld 塞焊縫 18 b.spot weld 點(diǎn)焊 c.seam weld 縫焊 d.slot weld 槽焊縫 e.none of the above 以上都不是 Q4
66、-6 The term for the type of weld configuration formed when the length of a round bar is placed parallel against a flat surface is: 當(dāng)一根圓鋼沿長度方向平行地放在平面上,所形成的焊縫術(shù)語是: a.double-flare-bevel-groove 雙面喇叭型坡口 b.single-flare-V groove 單面喇叭-V型坡口 c.edge flange 卷邊 d.corner flange 角卷邊 e.none of the above 以上都不是 Q4-7 The term for the type of weld having a generally triangular cross section and which is applied to either a T,comer,or lap joint is: 具有三角形橫截面,可以用于T形接頭,角接接頭或搭接接頭中任一種接頭, 用
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