De or het automechanica?

The correct Dutch article is:

de automechanica

Rule Words ending in -ica: usually de. See the rule
Meaning (Dutch) (onderwijs) studierichting in het Vlaams secundair onderwijs

How to use automechanica

the automechanicade automechanica
this automechanicadeze automechanica
that automechanicadie automechanica
our automechanicaonze automechanica
your automechanicajouw automechanica
every automechanicaelke automechanica
which automechanica?welke automechanica?
a big automechanica / the big automechanicaeen grote automechanica, de grote automechanica

Meaning, plural, diminutive, pronunciation and translations: WikiWoordenboek (Dutch Wiktionary) (CC BY-SA 4.0). Example sentences: Tatoeba (CC BY 2.0 FR).