Question

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when should corrosion protection be applied? (select three)
after cutting or grinding
when working with any area where the coating was damaged
when working with undamaged parts of the vehicle
before and after welding

Explanation:

Corrosion protection is necessary when the metal surface is exposed or damaged. After cutting/grinding, the surface is exposed. When the coating is damaged, the metal is exposed. Before and after welding, proper protection can prevent rust. Working with undamaged parts doesn't require immediate corrosion protection as the coating is intact.

Answer:

A. After cutting or grinding, B. When working with any area where the coating was damaged, D. Before and after welding