Wiring and componentsQuestion 454 of 1506

Which metal wets readily with tin/lead solder?

  1. Aluminum
  2. Iron
  3. Copper
  4. Aluminum foil
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Correct answer: Copper

Aluminum and iron do not wet properly.

Source: Electrical Fundamentals Competency (Industry Training Authority of BC), 10.1: Solder Bonding

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Questions last reviewed: 18 October 2026