A U-tube manometer is arranged, as shown in Fig. 2.15, to measure the pressure difference between two points A and B in a pipeline conveying water of density 1000 kg/m³. The density of the manometric liquid Q is 13600 kg/m³ and point B is 0.3 m higher than point A. Calculate the pressure difference when h = 0.7 m. T Manometric liquid Q of density Pman Figure 2.15 Measurement of pressure difference Fluid P, of density blup all to 20 lens
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- 1. Water is flowing in a wide open channel as shown in the figure. Two pitot tubes are connected to a different manometer containing oil (sp.gr. = 0.82). Find the velocity at m point A and point B in - oil (op.gr.=0.82) 2 m wafer sarfeceA cylindrical tank 2.20 meters in diameter and 15 meters high is filled with liquid Z. Apressure gage at elev. 10m at the side of the tank reads 105 kPa.Another gage at elev. 6m reads 140 kPa. Compute the specific weight of the liquid, density and specific gravity.Oil of sp. gr. 0.84 is flowing in a pipe under the conditions shown in the figure. If the total head loss from point 1 to point 2 is 900-mm, find the pressure at point 2
- The spring of the pressure gauge shown in the figure below has a force constant of 1 100 N/m, and the piston has a diameter of 1.40 cm. As the gauge is lowered into water in a lake, what change in depth causes the piston to move in by 0.780 cm? m Vacuum WWWWWater flows through a pipe reducer shown in figure 2. The static pressure in the large diameter pipe and the small diameter pipe are measured by the inverted U-tube manometer containing oil of specific gravity less than one. Determine the manometer reading, thus show that h is given by the equation h = ng(1-SG) la SG Water Figure 2 The diameter of a pipe changes gradually from 75 mm at a point A, 6 m above datum, to 150 mm at B, 3 m above datum. The pressure at A is 103 kPa and the velocity of flow is 3.6 m/s. Neglecting losses, with the aid of a neat sketch, determine the pressure at B.Ex.1 Ans. A glass tube 0.25 mm in diameter contains a mercury column with water above the mercury. The temperature is 20°C at which the surface tension of mercury in contact with water is 0.037 kg()/m. What will be the capillary depression of the mercury? Take angle of contact 0= 130°. 3.02 cm
- ASAP7. What is the pressure value (PA) needed to achieve equilibrium for the figure shown (kPa)? a. 0.59 c. 1.02 b. 1.02 d. None of all these PA S.G=0.87 30 120 mmA storage tank contains a liquid at depth y where y=0 when the tank is half full. Liquid is withdrawn at a constant flow rate Q to meets demands. The Contents are resupplied at a sinusoidal rate 30sin (t). Equation can be written as: d(Ay) = 3Q sin?(1) – Q (1)p (change in` (inflow) – (outflow) volume since the surface area A is constant sin²ce) – O A dy d(t) Use Euler's method to solve for the depth y from t = 0 to 10 d with a step size of 0.5 d. The parameter values are A = 1200 m? and Q = 500 m/d. Assume that the initial condition is y = 0.
- In Figure 8, A two liquid double column enlarged-ends manometer is used to measure pressure difference between two points. The basins are partially filled with liquid of specific gravity 0.75 and the lower portion of U-tube is filled with mercury of specific gravity 13.6. The diameter of the basin is 20 times higher than that of the U-tube. Find the pressure difference if the U-tube reading is 25 mm and the liquid in the pipe has a specific weight of 0.475 N/m³. Figure 8A differential manometer is shown in fig 1. Calculate the pressure difference between M,N if the specific gravity of oil 0.8. oil M oil 3m Hg Fig. 1In above Fig. 2.26 shows an inverted differential manometer connected to two pipes A and B containing water. The fluid in manometer is oil of sp. gr. 0.8. For the manometer readings shown in the figure, find the difference of pressure head between A and B.