CWI Part A 실전 모의고사: Part A 핵심 이론 기초 퀴즈 > CWI 온라인교육

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    [Standard] CWI Part A Fundamentals Practice Quiz

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[Notice] This practice quiz covers essential concepts of 

welding inspection, including metallurgy, NDT, and safety. 

Test your basic knowledge before moving to the Premium level.

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Section 1. Welding Metallurgy

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Q1. Which of the following is the most common alloying 

    element added to iron to produce steel?

    A. Aluminum

    B. Carbon

    C. Copper

    D. Zinc

Q2. What term describes the ability of a metal to be 

    deformed plastically without rupturing?

    A. Hardness

    B. Brittleness

    C. Ductility

    D. Strength

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Section 2. Inspection Methods (NDT)

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Q3. In Magnetic Particle Testing (MT), which orientation 

    of a discontinuity is easiest to detect?

    A. Parallel to the magnetic field lines

    B. At a 45-degree angle to the magnetic field

    C. Perpendicular to the magnetic field lines

    D. Subsurface discontinuities deep in the metal

Q4. Which of the following is a potential safety hazard 

    specifically associated with Radiographic Testing?

    A. High-intensity visible light

    B. Ionizing radiation

    C. Strong magnetic fields

    D. Toxic chemical fumes

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Section 3. Welding Symbols & Documents

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Q5. On a welding symbol, what information is placed 

    to the IMMEDIATE RIGHT of the weld symbol?

    A. Weld size

    B. Weld length

    C. Pitch (spacing)

    D. Root opening

Q6. A document that provides the detailed instructions 

    for a welder to follow is called:

    A. PQR (Procedure Qualification Record)

    B. MTR (Material Test Report)

    C. WPS (Welding Procedure Specification)

    D. WPQ (Welder Performance Qualification)

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Section 4. Welding Processes & Safety

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Q7. Which welding process is most likely to produce 

    "Tungsten Inclusions" in the weld metal?

    A. SMAW

    B. GMAW

    C. GTAW

    (D) SAW

Q8. What shade of filter lens is generally recommended 

    for light SMAW (arc welding) operations?

    A. Shade 2-4

    B. Shade 5-8

    C. Shade 10-12

    D. Shade 14-16

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Section 5. Discontinuities

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Q9. "Crater cracks" are most likely to occur at:

    A. The beginning of a weld bead

    B. The termination (end) of a weld bead

    C. The middle of the Heat Affected Zone

    D. The interface between base metals

Q10. Which discontinuity is caused by gas entrapment 

     within the solidifying weld metal?

     A. Slag inclusion

     B. Undercut

     C. Porosity

     D. Overlap

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                      ANSWER KEY

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Q1: B | Q2: C | Q3: C | Q4: B | Q5: B

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

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