_____________ is used for examining the macro-structure of a material?
Correct answer: A. Visual inspection by naked eye
- A. Visual inspection by naked eye
- B. Optical microscope
- C. X-rays
- D. Metallurgical microscope
Explanation
Macrostructure concerns large-scale features such as cracks, segregation and weld defects, which can often be observed by visual inspection with the naked eye or low magnification. Microscopes and X-rays are used for more detailed examination rather than the basic macrostructural inspection stated here.
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