Multiple choice

____ is a method in which a barrier film is introduced between iron and atmospheric oxygen and moisture.

  1. Barrier protection

  2. Sacrificial protection

  3. Anti-rust use

  4. Polishing

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

 Barrier protection is the oldest and most widely used method of corrosion protection. It acts by isolating the base metal from the environment. Like paints, the hot-dip galvanized coating provides barrier protection. A barrier film is introduced between iron and atmospheric oxygen and moisture.