3. THE SYSTEM IS 20C. IF ATMOSPHERIC PRESSURE IS 101.03 KPA AND ABSOLUTE PRESSURE AT THE BOTTOM IS 231.3 Kpa, what is SG of olive oil? SAE 30 oil 15m Water 25m Olive oil 29m Mercury 04m
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- 3. If the temperature of a certain amount of gas is held constant, the absolute pressure of gas varies inversely as its volume without change of state, and if for certain amount of gas, the absolute pressure is 20 psi (pound per square inch) when the volume is 40 liters, then find the volume when the absolute pressure reached 32 psi. 4. The electrical resistance of a wire varies directly as the length and inversely as square of radius. The resistance of a certain piece of wire of length 100 feet and radius 0.02 inch is 300 ohms. Find the resistance of the wire of the same material 2500 feet long and radius 0.05 inch.Q4: Find the pressure of water at points 2,3,4,5 and 6 if the confined pressure at point 1 is p 2.943 (Bar) shown Figure 3. Find the pressure at points 7 and 8. All values of pressure should be in (Bar). PO=2.943Bar gage (2) (1) (8 c.g confined 7 c.g 8m water (4) (5 6 Figure 3 Q5: Three different liquids and compressed air are in the tank shown in Figure 4, if the values of a 2 (m), b 5 (m), c 1 (m), Pca = 12 (mm column height of Hg), Poil = 800 (Kg/m³), pwater = 1000 (kg/m³), PH.L. = 1600 (kg/m³), GHg = 13.6, Yw = 9.81 (kg/m³) and g = 9.81 (m/s?). Find the piezometric heads hA, hB, and hc. Compresses Air Pca hA Oil 2 hB Water hC 3 Heavy Liquid 4 Figure (4)Find the pressure difference between points A and B. (1,3,5,7,9): Liquid is Chloride with density 1490 kg/m³ and H = 25 cm. Liquid Oil (sg = 0.90) %3D 12 A cm 16 H 12 cm cm cm cm Mercury (sg = 13.54)
- In the figure shown below. Let X=2 cm, Y = 10 cm, specific weight of water = 9850 N/m?, Benzene density = 870 kg/m, Kerosine desity = 800 kg/m', Mercury specific gravity = 13.6. Neglect Air elevation. %3D GELLO Kerosine Air Benzene 40 cm 19 cm 20 cm Mercury- Water Determine the pressure difference (Pa) between points A and B. (PA-Pek1. If the level of the liquid measured by using capacitive probe and buoyant force is same, find the equation of the capacitance due to liquid level in terms of the buoyant force on the cylindrical displacer (used in level measurement using buoyant force). You can assume the data required in the variable form. Consider cylindrical vessel and displacer.In Figure below all fluids are at 20 deg.C. Determine pressure at point B, if pressure at point A is 150 kPa and weight of air is neglected. Use the table below for the densities at 20 deg.C. Liquid p. kg/m Kerosene - Ammonia 608 Benzene 881 Air Carbon tetrachloride 1590 Benzene Ethanol 789 Ethylene glycol Freon 12 B 1117 40 cm 9 cm 1327 20 cm Gasoline 680 14 cm Glycerin Kerosene 1260 t8 cm 804 Mercury- Water Mercury Methanol 13,550 791 SAE 10W oil 870 SAE 10W30 oil 876 SAE 30W oil 891 SAE 50W oil 902 Water 998 Seawater (30%e) 1025
- 8. Find the Mac number when an aeroplane is flying at 900 km/hour through still air having a pressure of 8.0 N/cm and temperature -15°C. Take k = 1.4 andR= 287 J/kg K. Calculate the pressure, tempera- (Delhi University, 1986) [Ans. 0.776, 11.9 N/cm, 16.06°C, 1.434 kg/m] ture and density of air at the stagnation point on the nose of the plane.We first make equilibrium equations for the fluid pressure and then the free body diagram and then solve the question? Select one: O True O False ZFx=0, EFy=0 and EFz=0 are vector equations for the determination of the equilibrium equations for the fluid pressure in the body immersed in the liquid. Select one: O True O False A beaker is filled with a liquid of density p up to a height h. If half the liquid is replaced by equal volume of another liquid of twice the density, what will be the change in the base pressure? "PA h Ih/2 a) increased by pgh b) decreased by pgh c) increased by pgh-2 d) decreased by pgh=2 Select one: O A O B O CProblem 1: A fixed volume of ideal gas nitrogen is compressed in from State 1 to State 2 in a polytropic = const.). The conditions at each state are: process (PVn State 1: P1 120 kPa; T1 = 300K; V1 = 0.375 m3 State 2: P2 = 600 kPa; T2 400K Find the following quantities: The volume at State 2, V2 a. The numerical value of the polytropic exponent, n. b. The work, W. С. d. The heat transferred, Q.
- Using Laplace equation figure out how higher than atmospheric pressure is the inner pressure in a drop of water of radius 3 mm interfacing air at atmospheric pressure. Water surface tension 0.072 N/m. Atmospheric pressure 1.01x105 Pa.Complete the following table for water T, °F P, psia U, Btu/lbm phase description 300 782 40 Saturated liquid1. establish maxwell's relations for calorific capacities and explain what you mean in terms of state variables