CWI Part A Exam: 기본 모의고사 제6탄 > CWI 온라인교육

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    [Standard] CWI Part A Fundamentals Practice Quiz

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[Notice] This practice quiz is designed for a quick check 

of your fundamental knowledge. Use this set to build your 

confidence before moving on to the Premium Deep Dive sets.

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Section 1. Material Classifications (P-Numbers)

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Q1. The 'P-Number' system is used to group base metals 

    primarily based on their:

    A. Market price

    B. Weldability and mechanical properties

    C. Surface appearance

    D. Country of origin

Q2. Which P-Number is assigned to common Carbon Steels 

    in the ASME/AWS classification system?

    A. P-No. 1

    B. P-No. 8

    C. P-No. 21

    D. P-No. 45

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Section 2. Filler Metal Classifications (F-Numbers)

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Q3. The 'F-Number' classification for electrodes is 

    mainly based on their:

    A. Length and diameter

    B. Flux composition and usability characteristics

    C. Electrical conductivity

    D. Manufacturing date

Q4. A welder qualified with an F-No. 4 electrode is 

    generally also qualified to weld with:

    A. F-No. 1, 2, and 3 electrodes

    B. F-No. 5 electrodes only

    C. Any gas-shielded process

    D. No other electrodes

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Section 3. Welding Positions & Qualifications

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Q5. In pipe welding, which position involves a pipe 

    fixed at a 45-degree angle?

    A. 1G

    B. 2G

    C. 5G

    D. 6G

Q6. A welder who passes a qualification test in the 

    6G position is typically qualified to weld in:

    A. Flat and horizontal positions only

    B. Vertical and overhead positions only

    C. All positions (Flat, Horizontal, Vertical, Overhead)

    D. Shop conditions only

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Section 4. Welder Performance (WPQ) Basics

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Q7. What is the primary purpose of the WPQ (Welder 

    Performance Qualification)?

    A. To verify the quality of the base metal

    |B. To test the welder's ability to deposit sound weld metal

    C. To determine the mechanical properties of the joint

    D. To prove the cost-effectiveness of the process

Q8. How long does a welder's qualification remain 

    valid if they continue to use the specific process?

    A. 1 month

    B. 6 months

    C. Indefinitely (as long as they weld with the process)

    D. Exactly 1 year

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Section 5. Destructive Testing for Qualification

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Q9. Which test is commonly used to check the internal 

    soundness of a fillet weld in a welder's test?

    A. Tensile test

    B. Fillet break test

    C. Impact test

    D. Hardness test

Q10. A 'Macroetch test' involves cutting a sample and 

     etching it with acid to examine:

     A. The chemical composition of the core wire

     B. The grain size of the base metal only

     C. The weld profile, fusion, and penetration

     D. The electrical resistance of the joint

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                    ANSWER KEY

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Q1: B | Q2: A | Q3: B | Q4: A | Q5: D

Q6: C | Q7: B | Q8: C | Q9: B | Q10: C

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