AWS WIT-W-2008 Welding Inspection Technology Wookbook (Fifth Edition)《焊接检查的技术手册 第5版》.pdf

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1、WELDINGINSPECTIONTECHNOLOGYWORKBOOKFIFTH EDITIONPublished ByAmerican Welding SocietyEducation ServicesInternational Standard Book Number: 978-0-87171-622-0American Welding Society550 N.W. LeJeune Road, Miami, FL 33126 1995 by American Welding SocietyAll rights reservedPrinted in the United States of

2、 AmericaFifth Edition 2008Disclaimer. The American Welding Society, Inc., assumes no responsibility for the information contained in this publi-cation. An independent, substantiating investigation should be made prior to reliance on the use of such information.Photocopy Rights. No portion of this do

3、cument may be reproduced, stored in a retrieval system, or transmitted in anyform, including mechanical, photocopying, recording, or otherwise, without the prior written permission of the copyrightowner.Authorization to photocopy items for internal, personal, or educational classroom use only or the

4、 internal, personal, oreducational classroom use only of specific clients is granted by the American Welding Society provided that the appropriatefee is paid to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, tel: (978) 750-8400; Internet:.1-1WELDING INSPECTION TECHNOLOGYWORKB

5、OOKCHAPTER 1WELDING INSPECTIONAND CERTIFICATIONWelding Inspection TechnologyChapter 1Welding Inspection and Certification1-2Q1-1 Why is there an increasing need for weld quality?a. safetyb. economicsc. less conservative designd. government regulationse. all of the aboveQ1-2 What AWS document describ

6、es the rules for the CWI certification program?a. AWS 5.5b. AWS D1.1c. AWS QC1d. AWS 5.1e. AWS 14.1Q1-3 Weld quality control should begin after welding has been initiated.a. trueb. falseQ1-4 What are the three welding inspector certifications covered in AWS QC1?a. CAWI, CWI, BWIb. CWI, CAWI, SCWIc.

7、SCWI, CWI, ACWId. Levels I, II, and IIIe. None of the aboveQ1-5 What is generally considered to be the most important quality of a welding inspector?a. graduation from a welding vocational programb. an engineering degreec. an associates degreed. professional attitudee. hold a certified welder certif

8、icateQ1-6 The vision requirements for a CWI are near vision acuity on:a. Jaeger J1 at not less than 24 inb. Jaeger J2 at not less than 12 inc. Jaeger J2 at not less than 12 in, with or without corrective lensesd. the inspector cannot wear glassese. 20/20 visionQ1-7 The acronym KASH stands for:a. kno

9、wledge, attitude, skills, and habitsb. knowledge, application, skills, and habitsc. knowledge, attitude, skills, and honestyd. knowledge, application, skills, and honestye. knowledge, attitude, sincerity, and honestyWelding Inspection TechnologyChapter 1Welding Inspection and Certification1-3Q1-8 Th

10、e welding inspector should have a basic understanding of:a. welding processesb. nondestructive testing methodsc. a and b aboved. codes and standardse. all of the aboveQ1-9 The term used to describe a delay in the production schedule to permit inspection is:a. NDEb. hold pointc. preinspectiond. refer

11、ence pointe. arc strikeQ1-10 Inspection report corrections should be made by:a. rewriting the entire reportb. reporting the correction to the welding foremanc. telling the welder what was doned. ignoring the original errore. single-line out the error, correct the error, date, and initialQ1-11 A defi

12、nition of ethics is:a. using common sense and honestyb. living by the rulesc. being fair and impartiald. basing decisions on factse. all of the aboveQ1-12 For communications to be effective, it should form a “continuous loop.”a. trueb. falseQ1-13 The welding inspector must often communicate with:a.

13、weldersb. supervisorsc. welding engineersd. members of managemente. all of the aboveQ1-14 NDE personnel (other than CWIs) are typically certified to what document?a. AWS QC1b. AWS D1.1c. API 1104d. ASNT SNT-TC-1Ae. certification is not neededWelding Inspection TechnologyChapter 1Welding Inspection a

14、nd Certification1-4Q1-15 You must have a high school diploma to become a CWI.a. trueb. falseQ1-16 The CWI exam has several parts; these are:a. fundamentals, practical, codeb. fundamentals, basic, codec. basic, vision test, fundamentald. code, vision test, practicale. none of the aboveQ1-17 The CWI e

15、xam requires that the AWS D1.1 Code be used for the open book code test.a. trueb. falseQ1-18 The CWI exam contains three parts.a. trueb. falseQ1-19 The title of the AWS standard A3.0 is:a. Filler Metal Specificationsb. Standard Welding Terms and Definitionsc. Guide to CWI Certificationd. Requirement

16、s for CWI Certificatione. none of the aboveQ1-20 API Standard 1104 covers the fabrication of cross-country bridges.a. trueb. falseQ1-21 Some of the approved codes/standards for the open book portion of the CWI exam are AWSD1.1, API 1104, AWS D1.5, and AWS D15.1.a. trueb. falseQ1-22 Prior to starting

17、 a job assignment, the welding inspector should determine:a. what code, standard, or specification appliesb. what inspections should be conductedc. when inspections should be conductedd. where records are maintainede. all of the aboveWelding Inspection TechnologyChapter 1Welding Inspection and Certi

18、fication1-5ANSWER KEYCHAPTER 1Q1-1 e (pg. 1-2)Q1-2 c (pg. 1-2)Q1-3 b (pg. 1-2)Q1-4 b (pg. 1-8)Q1-5 d (pg. 1-3)Q1-6 c (pg. 1-4)Q1-7 a (pg. 1-4)Q1-8 e (pg. 1-5)Q1-9 b (pg. 1-5)Q1-10 e (pg. 1-6)Q1-11 e (pg. 1-6)Q1-12 a (pg. 1-6)Q1-13 e (pg. 1-6)Q1-14 d (pg. 1-8)Q1-15 b (pg. 1-8)Q1-16 a (pg. 1-10)Q1-17

19、b (pg. 1-10)Q1-18 a (pg. 1-10)Q1-19 b (pg. 1-11)Q1-20 b (pg. 1-10)Q1-21 a (pg. 1-10)Q1-22 e (pg. 1-2)2-1WELDING INSPECTION TECHNOLOGYWORKBOOKCHAPTER 2SAFE PRACTICES FORWELDING INSPECTORSWelding Inspection TechnologyChapter 2Safe Practices for Welding Inspectors2-2Q2-1 The welding inspector is expose

20、d to which of the following safety hazards:a. radiationb. falling objectsc. electrical shockd. eye hazardse. all of the aboveQ2-2 A document which covers safety in welding and cutting is:a. AWS D1.1b. API 1104c. ANSI Z49.1d. ASME Section VIIIe. ASME B31.3Q2-3 The most important component of an effec

21、tive safety and health program is:a. safety rulesb. safety proceduresc. protective equipmentd. welding helmete. management supportQ2-4 Safety training is mandated under provisions of:a. AWS “Safe Practices”b. OSHAc. ASME Coded. Welding Handbook, Volume 2e. none of the aboveQ2-5 The abbreviation MSDS

22、 means:a. Management Support and Daily Safetyb. Material Strength and Discontinuity Sheetc. Material Safety Data Sheetd. Material Strength and Data Sheete. none of the aboveQ2-6 The abbreviation TLV means:a. Total Linear volumeb. Threshold Limit Valuec. Tack Length Valued. Threshold Limiting Valvee.

23、 none of the aboveQ2-7 Employers must make all applicable MSDS data available to their employees.a. trueb. falseWelding Inspection TechnologyChapter 2Safe Practices for Welding Inspectors2-3Q2-8 Personnel must be trained to recognize safety hazards.a. trueb. falseQ2-9 A Hot Work Permit is required f

24、or:a. all welding operationsb. all cutting operationsc. all preheating operationsd. areas where a fire hazard may occur during a welding, cutting, or preheating operatione. all of the aboveQ2-10 Eye hazards found in welding operations include:a. flying particlesb. radiationc. smoke and fumesd. all o

25、f the aboveQ2-11 Protective equipment not suitable for eye protection from welding radiation includes:a. welding helmets with filter platesb. clear safety gogglesc. safety goggles with filter platesd. protective screense. properly positioned barricadesQ2-12 Suitable clothing materials for welding an

26、d cutting are:a. 65% cotton, 35% polyesterb. woolc. chemically treated cottond. b and c abovee. none of the aboveQ2-13 Before working on equipment where machinery guards have been removed, a Lock, Tag, andTry procedure should be completed.a. trueb. falseQ2-14 In avoiding fumes during welding, the mo

27、st important factor is:a. the type of base metalb. the type of filler metalc. the type of welding processd. the position of the welding machinee. the position of the welders headQ2-15 It is not important to consider ventilation during welding and cutting operations.a. trueb. falseWelding Inspection

28、TechnologyChapter 2Safe Practices for Welding Inspectors2-4Q2-16 When entering confined spaces, a standby is not required.a. trueb. falseQ2-17 Some of the toxic materials the welder may be exposed to are:a. cadmiumb. chromiumc. nickeld. leade. all of the aboveQ2-18 Proper usage and handling of compr

29、essed gas cylinders include:a. not welding on cylindersb. not including the cylinders in the ground or electrical circuitc. securing them properlyd. identifying the gas prior to usee. all of the aboveQ2-19 Acetylene becomes unstable above what pressure?a. 5 psib. 10 psic. 15 psid. none of the aboveQ

30、2-20 Oxygen is a flammable gas.a. trueb. falseQ2-21 Electric currents above approximately 6 milliamperes are considered:a. not harmfulb. primary currentsc. harmfuld. secondary currentse. b and c aboveQ2-22 When operating gas cylinders, the primary valve should be opened:a. all the way on an acetylen

31、e cylinderb. one turn on an oxygen cylinderc. one turn or less on an acetylene cylinderd. all the way on an oxygen cylinder to backseat the valvee. c and d aboveWelding Inspection TechnologyChapter 2Safe Practices for Welding Inspectors2-5ANSWER KEYCHAPTER 2Q2-1 e (pg. 2-2)Q2-2 c (pg. 2-2)Q2-3 e (pg

32、. 2-2)Q2-4 b (pg. 2-2)Q2-5 c (pg. 2-3)Q2-6 b (pg. 2-3)Q2-7 a (pg. 2-3)Q2-8 a (pg. 2-3)Q2-9 d (pg. 2-5)Q2-10 d (pg. 2-5)Q2-11 b (pg. 2-5)Q2-12 d (pg. 2-8)Q2-13 a (pg. 2-9)Q2-14 e (pg. 2-9)Q2-15 b (pg. 2-9)Q2-16 b (pg. 2-11)Q2-17 e (pg. 2-12)Q2-18 e (pg. 2-12, 2-13)Q2-19 c (pg. 2-16)Q2-20 b (pg. 2-15)

33、Q2-21 e (pg. 2-17)Q2-22 e (pg. 2-14)3-1WELDING INSPECTION TECHNOLOGYWORKBOOKCHAPTER 3METAL JOINING ANDCUTTING PROCESSESWelding Inspection TechnologyChapter 3Metal Joining and Cutting Processes3-2Q3-1 Which of the following is a function of the flux coating of a SMAW electrode?a. insulatingb. alloyin

34、gc. deoxidationd. shieldinge. all of the aboveQ3-2 In the AWS system of SMAW electrode designations, the next to the last digit refers to:a. impact strengthb. electrode coatingc. welding positiond. strengthe. none of the aboveQ3-3 Which of the following is an incorrect statement about a SMAW electro

35、de designated as E7024?a. It is a low hydrogen type.b. The weld deposit has a minimum tensile strength of 70 000 psi.c. It is suitable for use in the flat and horizontal fillet positions only.d. It is an electrode for welding carbon steel.e. none of the aboveQ3-4 Of the following which is not an ess

36、ential part of a typical SMAW system?a. constant current power supplyb. wire feederc. covered electroded. electrode leade. work leadQ3-5 Which of the following welding problems is the result of a distorted magnetic field that deflectsthe welding arc?a. cracksb. short circuitingc. arc blowd. insuffic

37、ient welding currente. all of the aboveQ3-6 Which of the following is not considered a type of metal transfer for GMAW?a. short circuitingb. sprayc. globulard. droplete. pulsed arcWelding Inspection TechnologyChapter 3Metal Joining and Cutting Processes3-3Q3-7 Which of the following types of metal t

38、ransfer in GMAW provides the lowest amount of heat tothe work piece, and therefore is prone to incomplete fusion?a. short circuitingb. sprayc. globulard. droplete. pulsed arcQ3-8 Which of the following gases can be used as shielding gases for GMAW?a. carbon dioxideb. argon-oxygenc. argon-carbon diox

39、ided. argone. all of the aboveQ3-9 What type of welding process is pictured below?a. SMAWb. GMAWc. FCAWd. SAWe. ESWQ3-10 Which of the following is not considered an arc welding process?a. SMAWb. GMAWc. FCAWd. ESWe. none of the above;yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy;SolidifiedWeld MetalM

40、oltenWeld MetalBase MetalArcPathSlag Molten FluxElectrodeContact TubeNozzleFlux infrom HopperGranularFlux BlanketDirection of TravelWelding Inspection TechnologyChapter 3Metal Joining and Cutting Processes3-4Q3-11 In the electrode designation system for FCAW, the second digit (1) in an electrode mar

41、ked(E71T-5) refers to:a. strengthb. welding positionc. chemical compositiond. usabilitye. none of the aboveQ3-12 Which of the following is not always an essential element of an FCAW system?a. constant voltage power supplyb. tubular electrodec. wire feederd. external shielding gase. work leadQ3-13 Wh

42、at aspect of the GTAW and PAW processes makes them different from the other arc weldingprocesses?a. nonconsumable electrodeb. power supplyc. shieldingd. all of the abovee. none of the aboveQ3-14 Shielding for the GTAW and PAW processes is primarily accomplished through the use of:a. granular fluxb.

43、slagc. inert gasd. oxygene. none of the aboveQ3-15 A green stripe on a tungsten electrode designates:a. pure tungstenb. 1% thoriated tungstenc. 2% thoriated tungstend. zirconiated tungstene. none of the aboveQ3-16 When welding aluminum with the GTAW process, what type of welding current is mostcommo

44、nly used?a. DCEPb. DCENc. ACd. a and b abovee. b and c aboveWelding Inspection TechnologyChapter 3Metal Joining and Cutting Processes3-5Q3-17 SAW and ESW processes are similar in that:a. both are an arc welding processb. both use shielding gasesc. both use a granular flux, which becomes moltend. a a

45、nd b abovee. a and c aboveQ3-18 The diagram below depicts what welding process?a. SMAWb. ESWc. FCAWd. SAWe. GMAWQ3-19 Solidification cracking due to improper width-to-depth ratio of the weld bead is a seriousproblem primarily with which welding process?a. SMAWb. OFCc. SAWd. all of the abovee. none o

46、f the aboveQ3-20 Which one of the following processes is typically used in the flat position unless special apparatusis employed?a. GMAWb. SAWc. FCAWd. SMAWe. GTAWWIRE GUIDEAND CONTACT TUBESOLIDIFIED SLAGWELD METALWELD POOLDIRECTION OFWELDINGARC & METAL TRANSFERARC SHIELD COMPOSEDOF VAPORIZED ANDSLA

47、G FORMING COMPOUNDSMOLTENSLAGPOWDERED METAL, VAPORFORMING MATERIALS,DEOXIDIZERS AND SCAVENGERSTUBULAR ELECTRODEWelding Inspection TechnologyChapter 3Metal Joining and Cutting Processes3-6Q3-21 Which of the following are not common to both GTAW and PAW?a. nonconsumable tungsten electrodeb. constricti

48、ng orificec. shielding gas nozzled. externally applied filler metale. none of the aboveQ3-22 What technique is employed with PAW to produce full penetration welds without a bevel edgepreparation?a. stringer beadsb. weave beadsc. keyholed. back-stepe. none of the aboveQ3-23 What welding process produ

49、ces welds in a single pass, with the progression uphill along thejoint?a. SAWb. ESWc. FCAWd. a and b abovee. b and c aboveQ3-24 Which of the following is not an advantage of the ESW process?a. high deposition rateb. ease of setupc. capable of joining thick sectionsd. no tendency for angular distortione. none of the aboveQ3-25 Which welding process is considered to be a chemical welding process?a. SMAWb. ESWc. SAWd. OAWe. none of the aboveQ3-26 Which arc welding process provide