Question

quiz
all of these are areas where corrosion protection should be used except:
a. where original coatings were disturbed or removed.
b. after replacing welded parts.
c. on composite parts.
d. surfaces before and after refinishing.

Explanation:

Composite parts are made of materials that are not prone to corrosion in the same way as metals. Original coatings disturbance/removal (A) exposes metal to corrosion - causing elements. Replacing welded parts (B) may expose metal. Surfaces before/after refinishing (D) need protection.

Answer:

C. On composite parts.