Mechanical

Mechanical in The Sims
The Mechanical skill allows a Sim to repair broken appliances, electronics, sinks, tubs, toilets, and showers at a faster speed which may eliminate the need of a repairman. The skill also reduces the risk of electrocuting themselves when changing light bulbs however, a maximum level Mechanical skill (10/10) does not eliminate the risk of getting electrocuted. Mechanical skill is also important in the promotion of the sim's career, including (but not limited to), business, military, science, and law enforcement. In Makin' Magic, a Sim's Mechanical skill affects the number of charges charms they make will have, and how many MagiCoins they'll get for performing on the wooden stage in Magic Town

To increase Mechanical skill, have your Sim read mechanical books from the bookshelves. In Livin' Large, a Sim can use the woodworking table and make gnomes to increase their Mechanical skill. The higher their Mechanical skill, the faster they make gnomes and the higher the price each gnomes can be sold for. In Makin' Magic, a similar table, the Kraft-a-Gargoyle table is introduced, which also increases the Mechanical skill.