-32 Both a gage and a manometer are attached to a gas tank to measure its pressure. If the reading on the pressure gage is 55 kPa, determine the distance between the two fluid levels of the manometer if the fluid is (a) mercury p = 13,600 kg/m) or (b) water (p= 1000 kg/m). P,= 65 kPa Gas FIGURE P3-32

A Venturi tube will be used to measure the flow speed in a river. The instrument is shown in the figure. V1, Patm V2, P2 The Venturi tube has a limit of operation. This limit regards to the fact that pressure p2 cannot drop too much below the atmospheric pressure because the water will boil. With a normal temperature (i.e. 20 °C), the water will evaporate with a pressure below 20340 [Pa] (while the atmospheric pressure is Patm 101000 Pa or 1010 hPa). Determine the maximum velocity v₁ which can be measure by a Venturi tube in which A1/A2=2 (i.e. ratio of area at the entrance over the constriction). Help: Specify the atmospheric pressure as an absolute pressure of Patm-101000 Pa (i.e. do not use Patm=0) Note: The evaporation of water inside pipes with fast flows is a recurrent problem in hydraulics. This phenomenon is called cavitation.

I need the answer as soon as possible

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