Manometer Definition and 100 Threads

Hello. I'm reading a physics book on my own and am learning about pressure measurements. I have a question with how pressure is measured using a manometer. Here is a link talking about it: http://www.upscale.utoronto.ca/PVB/Harrison/Manometer/Manometer.html My question is, why do points...

I have been told to calculate the pressure drop between two points in a pipe carrying water using a U-tube manometer. I understand that the pressure drop (P1 - P2) is given by pgh and that h is the difference in manometer fluid levels and g is gravity, but is p the density of the manometer...

See Attached... Homework Statement A manometer is used to measure drop across an orifice plate measuring the flow of brine (salt water, s.g. = 1.260). A) If the pressure drop is expected to be approx 1000 Pa, suggest an appropriate fluid. Why? B) If the flow rate is anticipated...

Homework Statement The manometer shown below measures the pressure of the water in the tank. Using variables for the densities (no values given), find the gage pressure at point A. Use the symbols ρw, ρ1, and ρ2 for the water and the two manometer fluids. A picture is attached Homework...

The setup is a particular gas thermometer constructed of two gas containing bulbs, each of which is put into a water bath on adjacent sides. The pressure difference between the two bulbs is measured by a mercury manometer. Appropriate reservoirs maintain constant gas volume in the two bulbs...

Homework Statement Consider a manometer with a glass bulb (Pgas=88kPa) at one end and which is open to the atmosphere (P =101 kPa) at the other. The manometer has two liquids oil and water in it, as shown. If the oil has a density of 823 kg/m3 and water a density of 1.00x10^3 kg/m3 find the...

Homework Statement A Pitot-static probe connected to a water manometer is used to measure the velocity of air. If the deflection (the vertical distance between the fluid levels in the two arms) is 7.3 cm, determine the air velocity. Take the density of air to be 1.25 kg/m3. Homework...

Homework Statement Assume you have a U-shaped, hollow tube (we call it a manometer) with Karo syrup (density 1200 kgm-3) in it such that both arms are half filled. What would happen if you added a given mass of water (1000 kgm-3) into one of the arms of the manometer? (the mass has less volume...

Homework Statement Consider the manometer in the figure. If the specific weight of fluid A is 100kN/m3, what is the absolute pressure, in kPa, indicated by the manometer when the local atmospheric pressure is 90kPa? http://www.composmentisconsulting.com/2-61.jpg Homework Equations...

dear guys, can you explain to me how to solve the problem below :- kindly refer the attached file. your help is much appreciated. regards, zainul

Homework Statement The U-tube in the figure is sealed at both ends. It contains a gas in A, another gas in B, and mercury in C. The heights of the mercury in the two arms are as shown. The density of mercury is 13.6 g/cm3. If the pressure in A is 1 × 10^4 dyn/cm2, the pressure in B is...

The pressure in a pressurized water tank is measured by a multi-fluid manometer. The gage pressure of air in the tank is to be determined. Assumptions: The air pressure in the tank is uniform (i.e., its variation with elevation is negligible due to its low density), and thus we can determine...

Hi friends - I'm at a lost on this particular problem which reads: a manometer consists of a U-tube, 7mm internal diameter, with vertical limbs with an enlarged upper end of 44mm diameter. the left-hand limb and the bottom of the tube are filled with water and the top of the right hand limb...

Hi guys, new to the forum here. I have of a conceptual question that I can't wrap my head around. Here's the situation: there's a reservoir filled with water attached to a "three-column manometer" with each column open to the atmosphere. The horizontal tube that connects all three of the...

Homework Statement Question 5 Figure 5.1 Figure 5.1 shows a nozzle with a jet of liquid 30 mm in diameter with a density of 850 kg.m-3 hitting a plate that has hole of 10 mm diameter in it. The jet of water requires a force of 50 N to hold it in place. (a) Assuming frictionless...

Homework Statement Can someone help with this problem? http://img854.imageshack.us/i/img6405.jpg/Homework Equations The Attempt at a Solution http://img151.imageshack.us/f/img6404v.jpg/ I got an answer which is very close to the one from the textbook. I can't find the problem. I'm talking...

Homework Statement Calculate the gage pressure of the air (in kPa) in the tank which is partly filled with the oil of specific gravity 0.8. Homework Equations P = pgh The Attempt at a Solution Taking xx at middle tube's mercury height : Right tube = Px = 13600 x 9.81 x 0.6...

Homework Statement The level of benzene in a storage tank may fluctuate between 10 cm and 300 cm from the top of the tank. Since it is impossible to see inside the tank, an open-end manometer fluid is to be used to determine the benzene level. One leg of manometer is attached to the tank...

I really just need somebody to check with on how to solve this problem and whether I am solving it correct. Homework Statement http://i.imgur.com/YpeJ1.jpg I need to solve for h1 and h2. p = 1000 kg/m3 g = 9.8 m/s2 gc = 1 kg-m/N-s2 Patm = 101.4 kPa kPa = N/m2 SG = Specific Gravity...

Homework Statement The mercury manometer shown in the figure is attached to a gas cell. The mercury height h is 120 mm when the cell is placed in an ice-water mixture. The mercury height drops to 30 mm when the device is carried into an industrial freezer. HINT: The right tube of the manometer...

Homework Statement Hello This is not a homework, but an example in my textbook that I don't really understand. We need to find P1 The website I took this picture from explains it but it looks too complicated. The teacher did it moving along the tube and it looked really easy but I didn't...

Homework Statement la u-shaped monometer has a cross section of 1cm^3, one side is closed, and the other other is open to the atmosphere, the barometer pressure is 1x10^5 pa. the manometer is filled with mercury, at a constant tempreture someone want to increase the pressure of the closed...

dont have a picture to show, a solution is pumped through a pipe with an obstacle in it, to find the difference in the pressure on either side of the obstacle, a u tube manometer with mercury is fitted to it and a height difference of 19cm is measured. what is the pressure after the obstacle...

Homework Statement A manometer using oil (density 0.91 g/cm3) as a fluid is connected to an air tank. Suddenly the pressure in the tank increases by 0.72 cm of Hg. (a) By how much does the fluid level rise in the side of the manometer that is open to the atmosphere? (b) What would your...

Homework Statement A mercury-filled manometer with two unequal-length arms of the same cross-sectional area is sealed off with the same pressure p in the two arms. With the temperature constant, an additional 10.0cm3 of mercury is admitted through the stopcock at the bottom. The level on the...

Homework Statement In the above manometer, attached to a sample of gas, the difference in the height of the mercury levels is 30.0mm. The barometric pressure is 754.0mm Hg. What is the pressure of the gas sample in kiloPascals ? ( The above figure is not drawn to scale, but the...

Homework Statement A differential mercury manometer is connected to pipe A containing gasoline (SG=0.65), and to pipe B containing water. Determine the differential reading, h, corresponding to a pressure in A of 20kPa and a vacuum of 150 mm Hg in B. Homework Equations Distance from pipe...

Thermodynamics -- Double U Tube Manometer with 2 Closed Ends Homework Statement GIVEN: Fresh water and sea water in parallel horizontal pipelines are connected to each other by a double U tube manometer. Density of sea water is 1035 kg/m^3 Density of air is 1.2 kg/m^3 Standard temp and...

Hey guy this is my first post here. I am looking for a little bit of help with a past paper I've been looking over. I've had a look at it and I am drawing a blank due to being off ill when this was covered in class, if anyone would be so kind as to show me how to get started on this question I...

please explain the principle and working of a normal U-tube manometer

Hi! I came up to some problems involving multifluid manometers, which generally are U-tubes or double U-tubes with stacked immiscible fluids. I wonder what is the reason to use such systems? Are they just a product of teachers to artificially complicate problems? Couldn't find anything what...

I have a test tomorrow and I've tried this problem a million times and it won't come out! I got it right when I turned it in, but I cannot for the life of me remember what I did! Help! Homework Statement A manometer using oil (density 0.86 g/cm^3) as a fluid is connected to an air tank...

I just finished a question in which a u-shaped tube (manometer) is filled with water to a certain height. Another substance, in this instance, oil, is added to one side of the manometer. I was asked to find the height of the new substance. I used the formula P(water) = P(oil), or (ϱwater)gh =...

Homework Statement Okay so we have a question about manometers. After drawing the diagram and managing to calculate all of the previous bits of the question i narrowed it down to this equation. 8405.208-133416(z-0.063)=9810z where i need to find Z. I was just wondering if someone could...

Homework Statement Water is spilled into a mercury manometer that was being attached to a pipe carrying argon. The water has a height of 20 cm in the manometer and the pressure drop across the manometer is 101.3 kPa (mercury on left lower than on the right) What is the difference in height...

Hi , Does anyone know , how to calculate the flow rate from a manometer ? there is a pipe attatch to the venturi meter, the inside tube of venturi is 32 mm and the outside 62 mm. A fan is sucking the air, so flow rate is produced. Thank You

Simple Fluid Mechanics-differential manometer question. Please :) Can someone please help me on this differential manometer question?? Let me retype the question because my handwriting is sloppy. "The manometer fluid in the manometer has specific gravity of 3.46. Pipes A and B both have...

Hi all, I really need some help with the following question, I have to find the pressure at point B, within the manometer. height A=0.71m height B=200mm p(roh)=882 kg/m^3 p(roh)m=13784 kg/m^3 (is this the density of the gas?) Pressure at point A=156850Pa I have tried using the...

Homework Statement Determine the pressure required to make the top of the oil, with height H0=443 mm even with the hight of mercury. The oil has relative density.920 and mercury has relative density13.55. To which side is the pressure applied? Homework Equations | o---- | o...

Homework Statement An experiment to determine the specific heat of a gas makes use of a water manometer attached to a flask (the figure below ). Initially the two columns of water are even. Atmospheric pressure is 1.4 x 10^5 Pa. After heating the gas, the water levels change to those shown...

1. Homework Statement Air at 20 degrees celsius and 100kpa is drawn into a wind tunnel. If the deflection h of a water manometer that is connected to a hole in the wall of the test section to measure the gauge pressure in the flow is 98mm. Calculate air speed in test section in m/s ignore...

Homework Statement Air at 20 degrees celsius and 100kpa is drawn into a wind tunnel. If the deflection h of a water manometer that is connected to a hole in the wall of the test section to measure the gauge pressure in the flow is 98mm. Calculate air speed in test section in m/s ignore fluid...

Homework Statement If the diameter of a manometer is increased, what effect will it have on height difference and individual heights of a liquid?

Basically our task is to design a inclined manometer. with these parameters : the maximum pressure: 7875pa minimum pressure: -3200. what I am struggling on is calculating the angle that the manometer should be inclined at. Another parameter that is given is that the angle must be between 0-45...

A manometer using oil (density 0.9 g/cm3) as a fluid is connected to an air tank. Suddenly the pressure in the tank increases by 0.75 cm of Hg. (a) By how much does the fluid level rise in the side of the manometer that is open to the atmosphere? (b) What would your answer be if the manometer...

Dear all, would anyone be able to help me with the following problem In the manometer shown in the figure, the reservoir diameters are 50 mm and the tube diameters are 10 mm. The upper fluid is an oil of density 850 kg/m3, and the lower fluid (hatched) is water. Initially the levels of oil...

1) What is the pressure in a gas container that is connected to an open-end U-tube manometer if the pressure of the atmosphere is 752 torr and the level of mercury in the arm connected to the container is 8.60 cm higher than the level of mercury open to the atmosphere? a. 666 mm Hg...

1) In an open end manometer, one end of a U-tube filled with mercury is attached to a gas-filled container and the other end is open to the atmosphere. If the gas pressure in the container is less than atmospheric pressure a.Hg will be forced out of the open end of the U-tube...

A piston having a cross-sectional area of 0.07 m^2 is located in a cylinder containing water as shown in the figure. An open u-tube manometer is connected to the cylinder as shown. For h1=60 mm and h=100 mm, what is the value of the applied force, P, acting on the piston? The weight of the...

How does one use various liquids and their unique densities to determine the pressure of a gas in a manometer?