Question

when performing steel and aluminum repairs, consider all the following except:
a) if the steel is embedded in aluminum, it can cause galvanic corrosion.
b) steel lacks memory and is much harder to work with than aluminum.
c) aluminum lacks memory and requires special repair tools.
d) steel has memory and is much easier to work with than aluminum.

Explanation:

• Option A: Steel and aluminum have different electrochemical properties, so contact (like steel embedded in aluminum) causes galvanic corrosion, which is a key consideration for repairs.
• Option B: Steel is harder than aluminum and does not have the "memory" (springback) property that aluminum has, making it harder to form/repair, so this is a valid consideration.
• Option C: Aluminum has shape memory (springback) and often needs specialized tools for repairs, so this is a valid consideration.
• Option D: Steel does not have memory, and it is harder (not easier) to work with than aluminum, so this statement is incorrect and not a valid consideration.

Answer:

D) Steel has memory and is much easier to work with than aluminum.