In HF Service, Carbon Steel Forms a Protective _________ Scale

question 363

Multiple Choice

In HF service, carbon steel forms a protective _________ scale in dry concentrated acid. Loss of the protective scale through high velocities or turbulence will result in greatly accelerated corrosion rates.

• A) Chloride
• B) Fluoride
• C) Iron sulfide
• D) Iron oxide

---

Definitions:

Domestic Output

The collective worth of every product and service generated inside a nation's boundaries over a specific duration.

Total Wage Bill

The cumulative amount of money a firm pays to its employees in wages over a specific period.

Domestic Output

The total value of all goods and services produced within a country's borders in a specific period, reflecting the country's economic performance.