General Studies · Automobile Maintenance
Which method is standard practice for cleaning heavy carbon deposits from spark plugs in a workshop?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Cleaning with a wet cloth
- 2Washing with solvent only
- 3Rubbing with coarse emery paper
- 4Abrasive sand blasting✓
Correct answer
Abrasive sand blasting
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