Fluid mechanics question, manometers

1 reply · 2K views · last reply
math_04
Messages
21
Reaction score
0

Homework Statement



Calculate the pressure which would be measured by the pressure gauge shown in the sketch below.

Homework Equations





The Attempt at a Solution



The diagram and attempted solution are in the attachment. The answer on the back was 2.82 KPa.
 
Attachments
  • Handwritten notebook page with a manometer sketch of a tank containing air above water, a mercury U-tube with 0.2 m and 3 m marked, and point 2 labelled. Below are the equations P1 + rho_Hg g h1 - rho_air g h2 = P2 and P1 = atm = 1.013 x 10^5 Pa, followed by a substituted line with 13.6 x 9.81 x 0.2 and 1.225 x 9.81 x 3.
    Fluids023.jpg
    21.9 KB · Views: 483

Discussion

oh no not again, yet another attachment pending approval, a 3 hours wait!
 

Similar threads

Basic fluid mechanics questions about an oceanography paper
  • Velatox
  • · Replies 2 ·
  • Advanced Physics Homework Help
Replies
2
Engineering Fluid mechanics question and the Bernoulli Equation
  • Franklie001
  • · Replies 3 ·
  • Engineering and Comp Sci Homework Help
Replies
3
Thin-walled sphere and fluid mechanics question
  • lavalite
  • · Replies 2 ·
  • Materials and Chemical Engineering
Replies
2
Calculate h if the fluid in the manometer is mercury
  • xCuzIcanx
  • · Replies 3 ·
  • Advanced Physics Homework Help
Replies
3
Chemistry What is "gauge pressure" and how does a manometer work?
  • zenterix
  • · Replies 1 ·
  • Biology and Chemistry Homework Help
Replies
1
Classical mechanics question (pendulum)
  • Clara Chung
  • · Replies 11 ·
  • Advanced Physics Homework Help
Replies
11
Calculate velocity in fluid mechanics question
  • Junkwisch
  • · Replies 1 ·
  • Engineering and Comp Sci Homework Help
Replies
1
Lagrangian Mechanics Question: A Yoyo radius a and b
  • BiGubbs
  • · Replies 1 ·
  • Advanced Physics Homework Help
Replies
1
Fluid Mechanics Question: Calculation of kinematic velocity
  • thelovemonkey
  • · Replies 2 ·
  • Advanced Physics Homework Help
Replies
2
What Is the Largest Pressure Measurable by a 70cm Water Column Manometer?
  • Iooz
  • · Replies 8 ·
  • Advanced Physics Homework Help
Replies
8