What should be done when performing maintenance of circuit breaker contacts?

Correct Answer: Option A — inspect for wear and misalignment of main contacts

Maintenance of circuit breaker contacts focuses on ensuring proper contact pressure and alignment to prevent localized overheating. Excessive filing or the use of abrasive cloths removes critical contact material and plating. Inspection should prioritize identifying pitting or misalignment rather than aggressive dressing, which shortens the component's service life.