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C1A e. certification is not needed 無需證書 Q115b You must have a high school diploma to bee a CWI. 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 Q116a 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 Q117b The CWI exam requires that the AWS Code be used for the open book code test. CWI 考試中 , AWS 規(guī)范用作規(guī)范開卷考試使用的書本。 a. true 正確 b. false 錯(cuò)誤 Q28a Personnel 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 Q217e 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 Q218e Proper usage and handling of pressed gas cylinders include: 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 Q219c Acetylene bees 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 Q220b Oxygen is a flammable gas. 氧氣是可燃?xì)怏w。 a. true 正確 b. false 錯(cuò)誤 Q214e 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 type 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 Q215b 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 Q119b The title of the AWS standard is: AWS 標(biāo)準(zhǔn) 的標(biāo)題是: a. 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 Q120b API Standard 1104 covers the fabrication of crosscountry bridges. API 標(biāo)準(zhǔn) 1104 包括橫穿全國的橋梁的制作。焊接檢驗(yàn) 工藝學(xué) 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) 上海振華重工集團(tuán) 陸建華 等人翻譯 上海市焊接學(xué)會(huì) 劉 榴 校對(duì) 2020 年 6 月第 1 章 焊接檢驗(yàn)和取證 Q11e 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)計(jì) d. government regulations 政府規(guī)定 e. all ofthe above 以上皆是 Q12c 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 Q13b Weld quality control should begin after welding has been 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 Q118a The CWI exam contains three parts. CWI 考試包括三部分。 a. true 正確 b. false 錯(cuò)誤 Q29d 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 during 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 Q210d Eye hazards found in welding operations include: 焊接操作中對(duì)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 Q211b Protective equipment not suitable for eye protection from welding radiation includes: 對(duì)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 d. protective screens 保護(hù)屏障 e. properly positioned barricades 合理設(shè)置的屏蔽 Q212d 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 Q213a Before working on equipment where machinery guards have been removed, a‘ Lock, Tag, and Try’ procedure should be pleted. 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 Q221e Electric currents above approximately 6 milliamperes are considered: 6 毫安的電流被認(rèn)為是: 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 Q222e 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 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 第 3 章 金屬連接和切割的方法 Q31c 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 絕緣