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- 1. Pressures up to 3000 bar are measured with a dead-weight gauge. The piston diameter is 4 mm. What is the approximate mass in kg of the weights required? 2. A gas is confined in a 0.47 m diameter cylinder by a piston, on which rests a weight. The mass of the piston and weight together is 150 kg. The local acceleration of gravity is 9.813 m's-2, and atmospheric pressure is 101.57 kPa. (a) What is the force in newtons exerted on the gas by the atmosphere, the piston, and the weight, assuming no friction between the piston and cylinder? (b) What is the pressure of the gas in kPa? (c) If the gas in the cylinder is heated, it expands, pushing the piston and weight upward. If the piston and weight are raised 0.83 m, what is the work done by the gas in kJ? What is the change in potential energy of the piston and weight? 3. Steam at 1400 kPa and 350°C [state 1] enters a turbine through a pipe that is 8 cm in diameter, at a mass flow rate of 0.1 kg: s-1. The exhaust from the turbine is…5. If 10 m3 of atmospheric air at zero degrees centigrade temperature are compressed to a volume of 1 m3 at 100oC, what will be the pressure of air in kPa? (3 DECIMALS IN FINAL ANSWER PLS)A certain European automobile has a gas mileage of 17 km/L. What is the gas mileage in miles per gallon?
- 4. A diver descends 100 m to a sunken ship. A container is found with a pressure gage reading of 100 KPa (gage). Atmospheric pressure is 100 Kpa. What is the absolute pressure of the gas in the container? (The density of water is 1000 kg/m³). 28 THERMODYNAMICS 1Q1. The tank in Fig. 1 contains oil of specific gravity 0.75. Determine the reading of gauge A in KPa. Air 22.9 cm 304.8 cm Oil sp gr 13.57 Fig. 13. A differential manometer is connected to two pipes as shown in Fig. 2.31. The pipe A is containing water and the pipe B is containing an oil of specific gravity 0.8. Find the difference of mercury levels, the pressure difference in the two pipes be 80 kPa. [Ans. 426 mm] Water- 3.5 m B To Fig. 2.31. Fluid Pressure and its Measurement 37 300 Fig. 2.32. -Oil of sp. gr. 0.8 Copyrighted materia B
- The pipe assembly of the figure is supported by a fixed support at point A. A couple-moment and a force are applied at points B and C, respectively. In Cartesian coordinates, the applied couple-moment is MB = -150 k N-m, and the applied force is Fc = + 200ĵ Newtons. You may neglect the weight of the pipe assembly. 1. Draw a FBD which is suitable for solution of this problem, when seeking the unknown force and moment reactions at the fixed support, Point A. You may use the existing drawing given below. Your FBD must clearly/correctly show the force and moment reaction vectors. Use double arrowheads to distinguish moment vectors from force vectors. 2. Calculate F°MA, which is the moment generated at A due to the force applied at Point C. 3. Write the equations of equilibrium and solve to find the reactions at Point A. Specifically, find the force-reaction vector, A and the moment-reaction vector, *MA-A closed vessel contains air at a pressure of 140 kPag and a temperature of 20°C. Find the final absolute pressure in KPA if the air is heated at a constant volume to 100°C. The atmospheric pressure is 28 in. Hg. a. 298.93 b. 300.93 c. 278.93 d. 288.93Pa has a gauge pressure of 319892.923 Pa What is the density of the unknown fluid in kg/m? Water Pa 150 cm Water 120 1300 mm cm 140 cm Unknown
- In the given image, the pressure at point A is 15 lbf/in². All fluids are at 20°C. What is the air pressure in the closed chamber B, in Pa? A Water SAE 30 oil 4 cm 3 cm 6 cm + 3 cm Numeric Response Air B Liquid, SG = 1.45 5 cm 8 cmPlease answer it in 1hr. show solution step by step and the UNITS. ThermodynamicsThe pressure in automobile tire depends on the temperature of the air in the tire. When the air temperature is 30°C, the pressure gage reads 250KP.. The volume of the tire is 0.030 m'and the atmospheric pressure is 100KP.. The gas constant of the air is 0.287 KPa.m2/Kg.K. The gage pressure in the tire when the air temperature rises to 60 °C is Select one: O a. 2209 KPa Ob.285.25 KPa Oc305.8 KPa Od 274.75 KPa