Q. Gases used in normal welding?
A) Acetylene and Nitrogen
B) Oxygen and Acetylene
C) Oxygen and Hydrogen
D) Oxygen, Hydrogen and Acetylene
✔ Correct Answer: Oxygen and Acetylene
Exam Insight
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A) Acetylene and Nitrogen
B) Oxygen and Acetylene
C) Oxygen and Hydrogen
D) Oxygen, Hydrogen and Acetylene
✔ Correct Answer: Oxygen and Acetylene
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