Which PE track should I go down?

[steves1080]

I was just given a new position as a hydraulics engineer. We have a system that lifts large structure using hydraulic cylinders with pneumatic systems and hydraulics fluid. My question is which of these two tracks should I focus on for my PE? I want to go for the most relevant one to this job.

THanks

 

[steves1080]

Guess I should list the choices, huh..

It's between-
Mechanical: Mechanical Systems and Materials
Mechanical: Thermal and Fluids Systems