Regarding the use of degreasers for cleaning metal before welding, which statement is true?

Using a degreaser effectively involves understanding its application and the specific needs for preparing metal surfaces before welding. The correct approach is to wipe off the degreaser immediately after application. This is crucial because leaving the degreaser on the metal can lead to residues that may interfere with the welding process. These residues can affect the quality of the weld by introducing contaminants that can degrade the bond between the metal pieces being joined.

Immediate wiping ensures that the surface is clean without leaving behind any chemical that could cause issues during welding, such as porosity or weak welds. This practice is standard across metalworking industries to maintain high-quality standards in welding operations.