Which one of the following is not the type of mass soldering technique?

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ALP CBT 2 Electrician Previous Paper: Held on 23 Jan 2019 Shift 2
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  1. Iron soldering
  2. Dip soldering
  3. Wave soldering
  4. Drag soldering

Answer (Detailed Solution Below)

Option 1 : Iron soldering
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  • Iron soldering is not the type of mass soldering technique.
  • The standard soldering method for mass processing of printed circuit boards and other applications are wave, drag, and dip soldering.
  • These methods are widely used in the electronic industry particularly for the production of electronic circuit boards.
  • The circuit boards are assembled with various electronic components on them with the pigtails sticking through the circuit board and crimped over the printed metal circuit on the underside of the board.
  • Soldering is the process by which metallic materials are joined with the help of another liquified metal (solder).
  • The most used method of manual soldering is with the soldering iron which is also known as soldering copper because it is fitted with a copper tip that may be heated electrically or by oil, coke or gas burners.
  • A soldering iron is a hand tool used in soldering. It supplies heat to melt solder so that it can flow into the joint between two workpieces.
  • Soldering iron tips are made of copper core plated with iron. The copper is used for heat transfer and the iron plating is used for durability.

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