Basic question: What is considered LOW, MEDIUM and HIGH PRESSURE on OIL/GAS industry?

"studentNonEng"
Questions like this have been asked in the past and the answer is always the same.
It is all relative. It is relative to the type of plant , Refinery, Chemical or Power Plant. It is relative to the pressures required in these different types of plants. There is just no commonly recognized standard for these three terms.

Now, why are you asking this question? Maybe if we had some background we could offer some advice.

Thanks a lot Jop.
I am just a student taking course by distance.
Thanks again.