CSWIP Notes – Material Inspection

The questions and answers based on the document no. WIS5-90516b - CSWIP 3.1 Welding Inspector. These question are separated by each section, it makes easy for reading and learning.

Q_7.1: Which of the following alloying elements is used mainly to improve the toughness of steels?
Answer: Manganese.
Learn more: WIS5 Section 7.3
Note: please note for % Carbon, Silicon, Chromium, Nickel, Sulphur, Phosphorus, and its advantage, its disadvantage related to welding imperfections.

Q_7.2: Which of the chemical elements has the greater effect on the harden ability of a steel plate?
Answer: Carbon.
Learn more: HAZ grain size and its effective.

Q_7.3: Which defect would you expect to obtain in TIG welds in non-deoxidized steel?
Answer: Porosity, due to non-deoxidized steel does not killed steel.

Q_7.4: What constituent is needed in coating of electrode of an electrode to prevent formation of porosity in welding of rimming steel?
Answer: Silicon.

Q_7.5: In a steel, which has improved creep properties at elevated temperature, which one of the following elements helps in this improvement?
Answer: Molybdenum.

Nguyen Duy Bien
 

Enjoy learning and researching, reading book. Knowledge welding inspection painting inspection.

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