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Difficulty: EasyElectrical Hand Tools

During the maintenance of an electronic control board, a technician must remove a damaged resistor from a soldered through-hole terminal. After heating the connection with a soldering iron, which hand tool is specifically used to draw the liquefied solder away by creating a vacuum?

  1. A
    Wire stripper
  2. Desoldering pumpAnswer
  3. C
    Diagonal cutters
  4. D
    Heat sink clip

Answer

A desoldering pump is specifically used to vacuum liquefied solder away from a joint during component removal.
A desoldering pump (solder sucker) uses a spring-loaded piston to create sudden negative pressure (vacuum), which draws molten solder out of the terminal joint into the tool reservoir.

Step-by-Step Solution

1
Identify the specific task required in the scenario.
The technician needs to clear molten solder from a printed circuit board terminal.
Removing a soldered through-hole component requires extracting the molten metal holding the lead in place.
2
Select the hand tool designed for vacuum extraction of liquid solder.
The desoldering pump (often called a solder sucker) creates suction when its spring mechanism is triggered.
The vacuum rapidly pulls the liquid solder into the tool's barrel before the solder cools and solidifies.

Key Concept

Identification and functional application of desoldering hand tools in electronics repair.
Estimated Time:45s
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Topics

Electrical Hand Tools

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