Welding Qualification and Certification Quiz
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Questions and Answers

What is the maximum permissible undercut for the initial fillet and the final groove when Option 1 of Figures 8 and 9 is used?

  • 3 mm (1/8 in)
  • 10 mm (3/8 in)
  • 1 mm (1/32 in) (correct)
  • 6 mm (1/4 in)

    • What is the maximum permissible variation in the sizes of legs for the fillet weld?

  • 6 mm (1/4 in)
  • 4 mm (1/8 in)
  • 2 mm (1/16 in) (correct)
  • 8 mm (5/16 in)

    • What is the maximum allowable size for surface discontinuities measured in any direction for specimens subjected to bend testing?

  • 3 mm (1/8 in) (correct)
  • 10 mm (3/8 in)
  • 6 mm (1/4 in)
  • 1 mm (1/32 in)

    • What is the sum of the greatest dimensions of all discontinuities exceeding 1 mm (1/32 in) but less than or equal to 3 mm (1/8 in) that is acceptable?

    <p>10 mm (3/8 in)</p> Signup and view all the answers

    What must welds meet before bend tests?

    <p>Specific visual examination criteria</p> Signup and view all the answers

    What is required in case of initial qualification failure?

    <p>Retesting with thorough checks and corrective actions</p> Signup and view all the answers

    What happens if there is a retest failure?

    <p>Further training and qualification for the lowest class</p> Signup and view all the answers

    How long do test assemblies that passed but were not recognized remain valid?

    <p>3 months</p> Signup and view all the answers

    What must welders and welding operators be qualified by?

    <p>Welding a groove weld test assembly and a fillet weld test assembly</p> Signup and view all the answers

    What specific guidelines exist for preparing?

    <p>Guided bend test specimens for pipe and plate test assemblies</p> Signup and view all the answers

    What must welders and welding operators in S classification be qualified by?

    <p>Welding specific test assemblies</p> Signup and view all the answers

    What is specified in a table for the SMAW process?

    <p>The extent of validity of qualification with a given F group of electrodes</p> Signup and view all the answers

    What are detailed requirements provided for?

    <p>Welder and welding operator qualification for different welding processes and electrode diameters</p> Signup and view all the answers

    What does a Welding Procedure Data Sheet (WPDS) primarily intend to reinforce?

    <p>Concrete</p> Signup and view all the answers

    What information is required to be included in a WPDS?

    <p>Joint geometry and welding parameters</p> Signup and view all the answers

    How can a WPDS be accepted based on joint geometry and procedure limitations?

    <p>By meeting the requirements of the governing applicable standard</p> Signup and view all the answers

    When can a WPDS be accepted based on successful procedure qualification tests?

    <p>If the joint geometry and parameters are qualified by successful tests</p> Signup and view all the answers

    Under what circumstances can acceptance of a WPDS require a combination of methods?

    <p>In certain circumstances</p> Signup and view all the answers

    What is the minimum thickness considered qualified for welding procedures, except for sheet steel?

    <p>Not less than 3 mm (1/8 in)</p> Signup and view all the answers

    What governs the qualification of welding procedures for steel less than 3 mm (1/8 in) thick?

    <p>Requirements of Annex J</p> Signup and view all the answers

    What governs the qualification of welding procedures for stainless steel?

    <p>Requirements of Annex K</p> Signup and view all the answers

    What shall be accepted as prequalified by the CWB?

    <p>WPDSs using joints designated as prequalified in any applicable governing standard</p> Signup and view all the answers

    What should the CWB do for the qualification of WPDSs using welding processes or base metals beyond the range covered by the Standard?

    <p>Follow testing procedures established for the welding process by other authorities acceptable to the CWB</p> Signup and view all the answers

    When can a WPDS that has been qualified by an authority acceptable to the CWB to another recognized code or standard be acceptable?

    <p>Provided that all requirements outlined in the Standard for the applicable welding process have been met</p> Signup and view all the answers

    What is the validity of the special successful procedure qualification tests recorded on PQRs?

    <p>Valid only for the specific conditions and ranges tested</p> Signup and view all the answers

    How many guided bend test specimens are required for mechanical testing from each test assembly?

    <p>One root-bend and one face-bend</p> Signup and view all the answers

    How much should the weld be ground smooth and the backing removed for test specimens for mechanical testing?

    <p>Within 3 mm of its thickness</p> Signup and view all the answers

    How many test assemblies must welders and welding operators be qualified on in each position of welding?

    <p>One</p> Signup and view all the answers

    How many retests are permitted in case of failure in the initial qualification tests for welding personnel?

    <p>One</p> Signup and view all the answers

    What must tack welders be qualified for?

    <p>Each welding process used for tacking</p> Signup and view all the answers

    What are robotic welding programmers required to be qualified and certified according to?

    <p>Standards outlined in the document</p> Signup and view all the answers

    How many stop and restarts must the root pass of each weld in specific locations indicated in Figures 8 and 9 have?

    <p>One</p> Signup and view all the answers

    What happens if there is a retest failure in the initial qualification tests for welding personnel?

    <p>Only one retest without additional training is permitted</p> Signup and view all the answers

    What is the eligibility criteria for a tack welder to tack weld all types of joints for the process and in the positions in which he/she has qualified?

    <p>Passing the fillet weld break test</p> Signup and view all the answers

    What is the size and finished profile of the applicable test specimens specified to be as shown in?

    <p>Figures 15 and 16</p> Signup and view all the answers

    What must be done before test specimens are cut from each test assembly?

    <p>The weld shall be visually examined for compliance with Figure 14 and Clause 9.14.3.5.1</p> Signup and view all the answers

    What is required for robotic welding programming by company personnel?

    <p>At least one qualified robotic welding programmer</p> Signup and view all the answers

    What is required for third party supplied programs?

    <p>Testing</p> Signup and view all the answers

    How are robotic welding operators qualified?

    <p>By welding a test assembly or a production test assembly as per the program's requirements</p> Signup and view all the answers

    What is included in testing for robotic welding operators?

    <p>Confirming completed weld profiles and extracting macro-etch specimens</p> Signup and view all the answers

    What are robotic welding programmers and operators exempt from?

    <p>Initial, upgrade, or check testing requirements</p> Signup and view all the answers

    What happens in case of failure in testing for robotic welding programmers and operators?

    <p>One retest without additional training is allowed, but further failures require retraining</p> Signup and view all the answers

    What must the company have for each welding process in use?

    <p>Welding procedure specifications accepted by the CWB</p> Signup and view all the answers

    What must be prepared and submitted to the CWB for review and acceptance?

    <p>Welding procedure data sheets (WPDSs)</p> Signup and view all the answers

    What should WPDSs include?

    <p>All geometric details and parameters specified in the code</p> Signup and view all the answers

    Under what circumstances can companies apply testing requirements for deformed reinforcing bars?

    <p>When welding deformed reinforcing bars to steel elements</p> Signup and view all the answers

    What does deformed bar conform to?

    <p>CSA G30</p> Signup and view all the answers

    What is the purpose of macro-etched test specimens?

    <p>To confirm fusion to the root of the joint and meet specified weld sizes</p> Signup and view all the answers

    What is required for a company's personnel to program the robots?

    <p>At least one qualified robotic welding programmer</p> Signup and view all the answers

    What must the completed welds meet?

    <p>Specific profiles confirmed by the CWB's representative</p> Signup and view all the answers

    What happens in case of failure during testing for the programmer and operator?

    <p>One retest without additional training is allowed</p> Signup and view all the answers

    What must the company have for each welding process, submitted to the CWB for acceptance?

    <p>Welding procedure specifications</p> Signup and view all the answers

    What is required for test assemblies before cutting macro-etch specimens?

    <p>Visual inspection</p> Signup and view all the answers

    What is the maximum number of retests allowed in case of failure in the initial qualification tests for welding personnel?

    <p>One</p> Signup and view all the answers

    What is the purpose of test assemblies for robotic welding operators?

    <p>To qualify by welding a test assembly or a production test assembly</p> Signup and view all the answers

    What must the welding procedure data sheets (WPDSs) include?

    <p>Prepared for welded joints, reviewed and accepted by the CWB</p> Signup and view all the answers

    What are robotic welding programmers and operators exempt from?

    <p>Initial, upgrade, or check testing requirements</p> Signup and view all the answers

    What is the eligibility criteria for a tack welder to tack weld all types of joints for the process and in the positions in which he/she has qualified?

    <p>Successful completion of a qualification test</p> Signup and view all the answers

    What happens if there is a retest failure in the initial qualification tests for welding personnel?

    <p>Additional training before another test attempt</p> Signup and view all the answers

    What is required for third-party supplied programs?

    <p>The programmer does not require testing</p> Signup and view all the answers

    Study Notes

    Welding Qualification and Retesting Procedures Overview

    • Welds must meet specific visual examination criteria before bend tests.
    • Criteria include limits for lack of root penetration and acceptable face and root reinforcement.
    • Retesting is required in case of initial qualification failure, with thorough checks and corrective actions.
    • In case of retest failure, further training and qualification for the lowest class are mandated.
    • If further failure occurs, retraining is needed before attempting further tests for upgrade.
    • Test assemblies that passed but were not recognized due to lower class failure remain valid for 3 months.
    • Different provisions apply for initial qualification tests and upgrading.
    • Welders and welding operators must be qualified by welding a groove weld test assembly and a fillet weld test assembly.
    • Specific guidelines exist for preparing guided bend test specimens for pipe and plate test assemblies.
    • Welders and welding operators in S classification must be qualified by welding specific test assemblies.
    • The extent of validity of qualification with a given F group of electrodes for the SMAW process is specified in a table.
    • Detailed requirements are provided for welder and welding operator qualification for different welding processes and electrode diameters.

    CSA W47.1:19 Certification of Companies for Fusion Welding of Steel

    • Root pass of each weld in specific locations indicated in Figures 8 and 9 must have one stop and restart.
    • For mechanical testing, three guided bend test specimens (two root- and one face-bend) shall be prepared from each test assembly at the locations shown in Figures 8 and 9.
    • Test specimens for mechanical testing shall have the weld ground smooth and the backing removed to within 3 mm of its thickness.
    • The size and finished profile of the applicable test specimens shall be as shown in Figures 15 and 16.
    • Welders and welding operators are classified based on qualification by welding fillet weld test assemblies specified in Table 2 and illustrated in Figure 6.
    • Welders and welding operators must be qualified on one test assembly in each position of welding in which they are to weld.
    • Before test specimens are cut from each test assembly, the weld shall be visually examined for compliance with Figure 14 and Clause 9.14.3.5.1.
    • Initial qualification tests for welding personnel are outlined in Table 3, and in case of failure, only one retest without additional training is permitted.
    • Tack welders shall be qualified for each welding process used for tacking and must pass the prescribed tack welding test.
    • A tack welder who passes the fillet weld break test is eligible to tack weld all types of joints for the process and in the positions in which he/she has qualified.
    • For robotic welding personnel, the certification requirements for robotic welding programmers are specified.
    • Robotic welding programmers must be qualified and certified according to the standards outlined in the document.

    Robotic Welding Programmer and Operator Qualifications

    • Robotic welding programming by company personnel requires at least one qualified robotic welding programmer.
    • Third party supplied programs do not require testing.
    • Robotic welding operators must be qualified by welding a test assembly or a production test assembly as per the program's requirements.
    • Testing includes confirming completed weld profiles and extracting macro-etch specimens from the production test assembly.
    • Macro-etched test specimens must conform to specific requirements, including fusion to the root of the joint and meeting specified weld sizes.
    • Robotic welding programmers and operators are exempt from initial, upgrade, or check testing requirements.
    • In case of failure, one retest without additional training is allowed, but further failures require retraining.
    • The company must have welding procedure specifications for each welding process in use, accepted by the CWB.
    • Welding procedure data sheets (WPDSs) must be prepared and submitted to the CWB for review and acceptance, including prequalified and non-prequalified joints.
    • WPDSs should include all geometric details and parameters specified in the code, and be available for use by welding supervisors and authorized personnel.
    • Companies welding deformed reinforcing bars to steel elements may apply testing requirements and have their WPDS accepted in accordance with the standard.
    • Deformed bar is a hot-rolled weldable product that conforms to CSA G30.

    Robotic Welding Programmer and Operator Qualifications

    • If the company's personnel program the robots, they need at least one qualified robotic welding programmer.
    • The programmer must prove their ability during testing and adjust the program during production.
    • If the program is supplied by a third-party company, the programmer does not require testing.
    • Robotic welding operators can qualify by welding a test assembly or a production test assembly.
    • The completed welds must meet specific profiles confirmed by the CWB's representative.
    • Test assemblies must be cut to extract macro-etch specimens representing each type of joint and welding position.
    • Test results require visual inspection and must meet specific requirements for fusion, leg size, cracks, and weld profiles.
    • Robotic welding programmers and operators are not required to follow initial, upgrade, or check testing requirements.
    • In case of failure, one retest without additional training is allowed for the programmer and operator.
    • Further failure requires additional training before another test attempt.
    • The company must have welding procedure specifications for each welding process, submitted to the CWB for acceptance.
    • Welding procedure data sheets (WPDSs) must be prepared for welded joints, reviewed and accepted by the CWB.

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    CSA W47.1:19 Fusion Welding of Steel PDF

    Description

    Test your knowledge of welding qualification and retesting procedures, as well as certification requirements for robotic welding programmers and operators. This quiz covers criteria for weld visual examination, retesting procedures, mechanical testing, qualification by welding specific test assemblies, and requirements for welding procedure data sheets. Ideal for welding professionals, inspectors, and anyone seeking to enhance their understanding of welding certification standards.

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