Help with a question please.

Help with a question please.

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One Amp Andy

Original Poster:

1,462 posts

191 months

Sunday 1st November 2015
quotequote all
Could someone help with this? I'm sure we're missing something simple, but, anyway....

The ends of a U-tubed manometer are connected to two different pipes each containing water. Pipe A is at a higher pressure than pipe B, and pipe A is 0.75m higher than pipe B. The U-tube manometer has a difference in mercury column height of 0.58m. The left hand limb mercury level is the lowest due to the relative higher pressure in pipe A and is 1.5m below the central axis of pipe A.

Assuming that acceleration due to gravity is 9.81m/s^2, and the densities of water and mercury are 1,000kg/m^3 and 13,600kg/m^3 respectively, calculate the difference in pressure between the two water pipes.

Could you show me the method used for your answer, so I understand how the value was calculated?
Thanks in advance.

One Amp Andy

Original Poster:

1,462 posts

191 months

Monday 2nd November 2015
quotequote all
Thanks for that. We got it eventually, after some head scratching. Useful link too, cheers!

One Amp Andy

Original Poster:

1,462 posts

191 months

Monday 2nd November 2015
quotequote all
Otispunkmeyer said:
One Amp Andy said:
Thanks for that. We got it eventually, after some head scratching. Useful link too, cheers!
Don't leave me hanging! Did I get it right ? :P
Yes you did!

One Amp Andy

Original Poster:

1,462 posts

191 months

Monday 2nd November 2015
quotequote all
300bhp/ton said:
Sure. And yes it is something simple. You want help with the 'answer', not the 'question'.


smile

HTH.
rolleyesbiggrin