The Manometer An elevation change of z in a fluid at rest corresponds to P/g. SOLVED PRACTICAL PROBLEMS in FLUID MECHANICS "The informal style of presentation is attractive and should help keep students engaged. The barometric pressure is 750 mm Hg. Solution: A soap bubble has two free surfaces, therefore increase in surface area A = A 2 A 1 = 2(100-50) 10-4 m 2 = 100 10-4 m 2. Save. Such a device is called a manometer. The density of liquid 1 is 1 = 0.8 g.cm-3, and the density of liquid 2 is 2 = 1 g.cm-3, and height h1 = 10 cm, then what is the height of h2. A manometer tube is filled with two type of liquids. Determine the length of an equivalent pipe to replace branches 1 and 2 assuming the pipe diameter is 3 m . Example: Differential pressure medicine with an inclined tube manmeter we use the same data as in the previous example, except that the tube is inclined 45o. The pressure difference measured by a mercury oil differential manometer on the two sides of the Manometer Example: Given the indicated manometer, determine the gage pressure at A. Pa = 101.3 kPa. get the manometer problems and solutions colleague that we have enough money here and check out the link. Open end mercury manometer is connected to a gas chamber containing gas at a pressure of 1.38 bar. Let 2 .4 10 4 J of work is done to increase the area of a film of soap bubble from 50 cm2 to 100 cm 2. 2. Solution For inlet, A 1 = ( d 1 2)/4 = ( x 15 2)/4 = 176.7 cm2 For throat, A 2 = ( d 2 2)/4 = ( x 10 2)/4 . Solve In analyzing and solving gas law problems, it is helpful to tabulate the information given in the problems and Sample Exercise 10.4 Using the Ideal-Gas Equation Solution Analyze We are given the volume (250 mL), pressure (1.3 atm), and temperature (31 C) of a sample of CO 2 gas and asked to calculate the number of moles of CO 2 in the sample. Known : Acceleration due to gravity (g) = 10 N/kg. A container of helium is connected to a manometer and the mercury level is 145 mm lower on the side open to the atmosphere. 205.8 kPa 9. The pressure at points A and (1) are the same, and as we move from point (1) to (2) the pressure will increase by 1 h 1. This is an open-ended manometer problem in which the Hg is higher on the side open to the atmosphere. Bookmark File PDF Manometer Problems And Solutions . Most of the solved fluid mechanics problems shown on the following pages are applications of these three equations: the Archimedes' principle, the continuity equation and the Bernoulli's equation. Thus a static column of one or more liquids can be used to measure differences between two points. It can be seen that the second solution is simply a constant. Title: Chapter 2 - Fluid Statics Exercise Solutions Author: Philip Created Date: 11/6/2017 7:26:57 PM U-tube manometer U-Tube Manometer: It consists of a tube formed in U shape as shown.

92 mm Hg 18.

Branch 2 has a length of 400 m, diameter of 3 m, and a friction factor of 0.02. It has a glass tube made up of pyralex glass. 4C-1 - Application of the 1st Law to a Cannonball Falling Into Water. The difference in height of mercury in the two arms is 435 mm. Embrace The Moment - A Poem. The fluid has a density of 1600 kg/m 3. 297 mm Hg 4. 1. What is the highest column of fluid h which can be sucked out of the tub if the fluid is (a) water and (b) mercury? Known : Density of liquid 1 = 0.8 g.cm-3 Density of liquid 2 = 1 g.cm-3 The simplest forms of these devices use the height of a column of liquid with a known density to indicate the pressure. The well type manometer is one of these variations. The manometer is used to measure the pressure which is unknown by the balancing gravity force and acceleration due to gravity, g = 9.81 m/sec2 The manometer consists of a steel, brass and aluminum material. (a) Derive an expression for p1 - p2 in terms of pA, pB, pC, h1, and h2.Suppose fluid A is methanol, B is water, and C is a manometer fluid with a specific gravity of 1.37; (b) Pressure p2 = 121.0kPa; h1 = 30.0cm; and h2 = 24.0cm. 564 mm Hg 7. This Paper. 109.8 kPa 12. Figure 3.6 shows an open manometer. 515 mm Hg 16. 1.24 atm 2. Consider a tub of fluid with density open to the atmosphere at a pressure Patm= 1 bar. Disadvantages of Manometers Following are the main disadvantages of manometer: The manometer has a smaller dynamic response. The two tanks are at the same elevation. Roll the mouse on this box to close. The manometer contains oil of density 750 kg/m3 and the head is 50 mm. Surface area of fish (A) = 6 cm2 = 6 x 10-4 m2. Example 30 Inthepipesystemdepictedbelow,thedischargeinpipeABis100 m3/sec. 1.