Wiring and componentsQuestion 457 of 1506

Which flux is the one to use for electrical soldering?

  1. Acid paste
  2. Liquid acid flux
  3. Rosin
  4. Caustic liquid
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Correct answer: Rosin

Rosin is non-corrosive and its residue is easy to remove.

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

Practice wiring and components

Questions last reviewed: 18 October 2026