CWI TEST PART A: WIT Chapter 8에 관한 시험 문제 > CWI 온라인교육

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1. What does metallurgy focus on in the context of welding?

(A) Designing welding machines

(B) The internal structure of metals and the relationship between those structures and metal properties

(C) Marketing strategies for welding equipment

(D) Financial aspects of welding projects

2. Why is it important for a welding inspector to understand basic welding metallurgy?

(A) To manage the financial budget of welding projects

(B) To ensure compliance with marketing strategies

(C) To assist in the specification of welding materials and understand the effects of welding on metal properties

(D) To oversee the manufacture of welding equipment

3. What are the effects of welding on the mechanical properties of metals?

(A) No effect

(B) Only aesthetic changes

(C) Changes in color and texture

(D) Changes in strength, hardness, ductility, and other properties

4. How can fabrication requirements such as preheat and postheat affect a metal's properties?

(A) They have no real impact

(B) They may result in metallurgical changes affecting the metal’s mechanical properties

(C) They only change the color of the metal

(D) They reduce the metal's lifespan significantly

5. What is primarily described in the section on ferrous welding metallurgy?

(A) The history of ferrous metals

(B) The economic impact of using ferrous metals

(C) Methods to control changes during welding that affect mechanical properties

(D) The artistic aspects of welding with ferrous metals