Topic: Manufacturing
Which of the following improve weld ability of steel?
- A. Low carbon content and poor affinity to oxygen
- B. High carbon content and poor affinity to oxygen
- C. Low carbon content and good affinity to oxygen
- D. High carbon content and good affinity to oxygen
Answer: A. Low carbon content and poor affinity to oxygen
Explanation: Weldability of steel is primarily improved by maintaining a low carbon content (which prevents the formation of brittle martensite in the heat-affected zone) and having a poor affinity for oxygen to reduce oxidation and porosity issues during the welding process.