Quiz on Quantitative Research with coverage on its types, situations and essays
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quiz 1
API 578 Quiz
1. Descri Describe be the defi definit nition ion of Alloy Alloy mate materi rial. al. Answer: any material including welding filler materials that contain alloying elements such as Cr, Ni or Mo that are intentionally added to enhance mechanical or physical properties.
2. Mill test report report can be considere considered d a substitut substitutee for a PMI PMI test. test. A. True B. False Answer: B 3. Material Material verificat verification ion programme programme shall shall not include include any constr constructio uction n weld joints joints since they are not the original pipe component. A. True B. False Answer: B 4. It is very very important important to identif identify y the material material by visual visual stamps/ stamps/marki markings, ngs, so it is is considered as one important component of an overall quality assurance program. A. True B. False Answer: A 5. List List out sever several al primar primary y PMI test test metho methods. ds. Answer: Portable X-ray fluorescence, Portable optical emission spectrometry, Chemical laboratory chemical analysis 6. Can portable portable X-ray fluorescenc fluorescencee method method detect detect carbon carbon content? content? Answer: No 7. During During plant turnaro turnaround, und, a section section of pipe pipe needs to be confirm confirmed ed for its its C content, content, which is the most suitable PMI test method? A. Portab Portable le X-ray X-ray Fluo Fluores rescen cence ce B. Portable Portable Optical Optical Emission Emission Spectrometry Spectrometry C. Chemical Chemical Laboratory Laboratory Chemical Chemical Analysis Analysis Answer: B 8. One weldment weldment which which joining joining A106 A106 and A312 A312 type type 316L pipe pipe spool together, together, was tested by portable X-ray fluorescence method. The result showed only 9% of Cr content, shall we reject this weld joint?
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Answer: We shall reject this weld joint since the Cr content is less than 12% which will not provide the corrosion resistance feature by comparing with the base metal.
