Metallic Components Form a Surface __________ When Exposed to Sulfur

question 155

Multiple Choice

Metallic components form a surface __________ when exposed to sulfur compounds. This may react with air (oxygen) and moisture to form sulfur acids (polythionic acid) .

• A) Oxide
• B) Sulfide scale
• C) Sulfate scale
• D) Caustic scale

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Definitions:

Randomly Selected

The process of choosing individuals or items in such a way that each member of a population has an equal chance of being included in the sample.

Normal Fluctuations

Variations in data or statistical measurements that are considered normal or typical within a specific context.

Assignable Variation

Variability in a process attributable to identifiable reasons, rather than being due to chance.

Specific Events

Particular occurrences or happenings that are distinct and identifiable.