What is the importance of AutoCad?

It's very usefull for any ENGINEER... basically, AutoCAD is a Computer-Aided Drafting software program which is used to create blueprints for buildings, bridges, and computer chips..
Mechanical engineering is a broad field that encompasses industry, business, medicine and even law. ... Design programs like AutoCAD help mechanical engineers do their jobs by helping them create preliminary designs and spot flaws before production, saving time and resources.