Question
Which of the following types of solder should not be used for radio and electronic applications?
Answer Options
- A) Acid-core solder
- B) Lead-tin solder
- C) Rosin-core solder
- D) Tin-copper solder
Correct Answer: A
Explanation
Solder is a fusible metal alloy used to create permanent, conductive joints between electronic components. To ensure a good joint, flux is required to clean oxides from the metal surfaces before the solder flows.
Acid-core solder must never be used for electronic applications. The acid-based flux it contains is extremely corrosive, and its residue will quickly damage and destroy the delicate wiring, traces, and components on a circuit board. You must always use rosin-core solder, as its non-corrosive flux is safe for electronics.
This topic was automatically created to facilitate community discussion about this exam question. Feel free to share study tips, memory tricks, or additional explanations!