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Thanks for dropping by @chetan9. Yes, Civil engineering is a broad subject. You have the Structural engineering section, the Road/earthworks specialism section, the water/hydro engineering section too and maybe some others I can't remember now.

On the auto cad, i could just tgen dedicate one of my blog posts ti talking about the softwares in construction and touch on anyone being used by each professional (this would require me peeping out of my head...lolz but it's cool)