[red-beard]

Lets see....

We needed the Calc courses so we could derive and understand many of the classes, including physics. But in the real world, most of us just need up through trig.

In my work I use:

Computer programming and controls
Relay controls
Electrical Circuits
Three phase power systems
VFD and motor control
Instrumentation
Mech design and vibration analysis
Compressible and non-compressible fluid flow
Thermodynamic cycle design (heat recovery design)
Chemical reactions
Partial Pressures and analysis
Steam/Vapor phase analysis
Piping, valve and pressure vessel design
Reviews of metallurgy
Structural design/review
Solar energy modeling
System Analysis
Power System frequency control and analysis

And I also do financial modeling for our projects
Project management
Predictive maintenance
Cost benefit analysis for changes we make to our power plants

A lot of this was honed "On the Job", but I had courses that covered most of the above in College.

Sometimes it is easier to list what I don't do...

Waste Water treatment
Roads
Concrete/foundations