Castilla Y León PAU Technology And Engineering II Practice Questions - Castilla Y León PAU Technology And Engineering II (Tecnología E Ingeniería II 2o Bachillerato) Exam

Under what condition does galvanic corrosion primarily occur between two metals?

When two metals with different electrode potentials are electrically connected in an electrolyte When a single pure metal is exposed to dry vacuum at high temperature When two identical metals are welded together using an identical filler metal When a polymer coating is applied evenly across an aluminum plate

Correct Answer:

When two metals with different electrode potentials are electrically connected in an electrolyte

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