Fayed surfaces cause concern in chemical cleaning because of the danger of

Fayed surfaces cause concern in chemical cleaning because of the danger of

• A. Reduced cleaning speed
• B. Increased surface roughness
• C. Entrapment of corrosive materials
• D. Degradation of underlying metal

Answer: (C)

Entrapment of corrosive materials is dangerous because when cleaning agents get trapped in tiny crevices or folds on a surface, they keep contact with the metal and continue reacting. That ongoing chemical attack can cause localized corrosion, pits, or thinning long after the surface looks clean, compromising strength and safety. The other options describe symptoms or outcomes, but the primary hazard here is the continued damage from residual corrosive substances that remain trapped rather than being fully removed.

Entrapment of corrosive materials is dangerous because when cleaning agents get trapped in tiny crevices or folds on a surface, they keep contact with the metal and continue reacting. That ongoing chemical attack can cause localized corrosion, pits, or thinning long after the surface looks clean, compromising strength and safety. The other options describe symptoms or outcomes, but the primary hazard here is the continued damage from residual corrosive substances that remain trapped rather than being fully removed.