​What Would Be an Acceptable Shielding Gas Mixture of Argon

question 13

Multiple Choice

​What would be an acceptable shielding gas mixture of argon (Ar) and oxygen (O) for GMA welds?

• A) ​Ar + 2% O2
• B) ​Ar + 1% O2
• C) ​Ar + 7% O2
• D) ​Ar + 0% O2

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Definitions:

Gynecomastia

Swelling or enlargement of the male breast.

Oral Stimulation

Stimulation of the oral area, including the lips and tongue, often used for sexual pleasure or soothing purposes.

Anus

The opening of the rectum, consisting of two sphincters, circular muscles that open and close like valves.

Rimming

An sexual activity involving the stimulation of the anal region by using the mouth and tongue.