I'm assuming you are still in high school. If, so, you might want to start with "Intro to Engineering." Then you want to explore your possibilities with courses like ECE, Civil, EEE, Mechanical. Never choose a career by it's value; always choose a career of your interest.
Civil Engineering
engineering
petroleum engineering
The best course for an ECE engineering student is VLSI.
AS is visited various site i found IT OR CS engineering has the best scope
ece civil
mechanical engineering is ever green and it is very interesting
mechanical, electrical and biomed
Yes it is.
chemical engineering
You go to an engineering school or college and take a course in Engineering Drawing.
I would start with this site. It gives a summary of what to expect from the course as well as information needed for you to decide if this is the ideal field to get into. See site below http://www.mi.edu/audio engineering