It varies, but students are typically required to do anything from half a year to one year of breadth courses outside their major, which would mean arts and humanities courses for those headed into technical disciplines. But many students take what are called AP courses in high school which count as college credits, and quite a few students are able to satisfy breadth requirements that way. And some narrow programs, such as engineering degrees, require next to no work outside the main field of study.
On the other hand, at some institutions one can satisfy the major minimally without a whole lot of courses, leaving plenty of time for non-technical courses.
So to summarize, there is a lot of variability. A US graduate in a technical discipline may have taken anywhere from zero to two years of arts and humanities courses.
On the other hand, at some institutions one can satisfy the major minimally without a whole lot of courses, leaving plenty of time for non-technical courses.
So to summarize, there is a lot of variability. A US graduate in a technical discipline may have taken anywhere from zero to two years of arts and humanities courses.