Oxygen cylinders used for autogenous (cutting/welding) purposes are ___________________?
Correct answer: A. Seamless & made of steel
- A. Seamless & made of steel
- B. Heat treated before use
- C. Made by sand casting
- D. Welded steel cylinders
Explanation
High-pressure oxygen cylinders are made from seamless steel to avoid weld defects that could fail under pressure and to maintain gas purity. Sand-cast and welded cylinders are therefore unsuitable for this service.
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