Question 373Electricity & Electronics - QMED
70% to passWhich of the following methods should be used to dress the face of silver-plated contacts?
ABurnishing with a burnishing tool
BFiling with a mill file
CSanding with 0000 sandpaper
DKnurling with a knurling tool
AI Explanation
The correct answer is C) Sanding with 0000 sandpaper. Sanding with 0000 (extra fine) sandpaper is the recommended method for dressing the face of silver-plated contacts. This gentle abrasive action helps to remove any tarnish or oxidation on the contact surface without damaging the underlying silver plating. The other options, such as burnishing, filing, or knurling, could potentially be too aggressive and risk wearing down or damaging the thin silver plating, which is undesirable for maintaining good electrical conductivity.
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