Use 'operable' to emphasize that something functions correctly, especially in practical or mechanical contexts. After the repairs, the factory equipment was once again operable.
Pro Tip 2/3
Not New
'Operable' often suggests that something, although not new, is still capable of working properly. Despite its age, the vintage motorbike is perfectly operable.
Pro Tip 3/3
Potential Readiness
'Operable' implies that the item is ready to be used immediately if needed. Ensure all emergency exits are operable at all times.