Pressure reported from a water line, gauge or absolute?

[EastWindBreaks]

Homework Statement

Homework Equations

The Attempt at a Solution

I thought the pressure in a water line is in gauge pressure, but the solution suggests that 1630 kPa is in absolute pressure, do we always assume absolute pressure unless otherwise specified?

 

[CWatters]

How does the solution imply gauge or absolute? It's simply asking you to change units isn't it?

 

[EastWindBreaks]

How does the solution imply gauge or absolute? It's simply asking you to change units isn't it?

I thought psia means psi as in absolute pressure? if it is, then I would need to add 1630 kpa( if its gauge pressure) to atmospheric pressure, which would be 246.42 psi+14.7 psi, but the correct answer is just simply 246.42 psia.

 

[Chestermiller]

I thought psia means psi as in absolute pressure? if it is, then I would need to add 1630 kpa( if its gauge pressure) to atmospheric pressure, which would be 246.42 psi+14.7 psi, but the correct answer is just simply 246.42 psia.

A pressure gauge typically gives the pressure in a water line as gauge pressure. So, you are absolutely right in your criticism of question. I would have given the same answer you gave.

 

[EastWindBreaks]

A pressure gauge typically gives the pressure in a water line as gauge pressure. So, you are absolutely right in your criticism of question. I would have given the same answer you gave.

haha, I am not sure if i was criticizing the question or just confused, thank you for clarification!

 

[CWatters]

I didn't notice the "psia" next to the answer box. The question itself just says psi.