Indicate whether each statement is TRUE or FALSE. Then explain your answer using
ID: 2084801 • Letter: I
Question
Indicate whether each statement is TRUE or FALSE. Then explain your answer using one or two sentences. Use the space provided after each question for your explanation. _____ 1. Solids and fluids behave in the same way under the action of stress. _____ 2. Liquids and gases behave in the same way under the action of all types of stresses. _____ 3. Liquids are often assumed to be ideal since the fluid property viscosity is often an unknown parameter in analysis of fluids. _____ 4. Density and specific weight are terms describing the same property of fluid. _____ 5. Temperature affects the property of liquids and gasses in the same way. _____ 6. Cavitation is the process of release of gases from a liquid. _____ 7. Air valves are always needed in water pipeline owing to cavitation process. _____ 8. Under all conditions, a liquid can be safety assumed to be incompressible.Explanation / Answer
1. False, solids and fluids behave in different ways when we apply stress. Mainly solids can resist or oppose the deformation or change of structure upto some level of stress but the fluids can deform at the starting point of stress also.
2.False,Liquids are different from gases. Liquids deform less and Slow to change also but coming to gases they deform more for the same pressure applied on liquid.
3.True,But liquids assumed to be ideal only. Because of their property of viscosity and the property of linear response of shear rate to pressure at maximum cases.
4.Both defines that how much mass present in certain volume , but they are having different values. Density has units and specific weight doesnt have units.
5.False, Both act differently when temperature act on gases and liquids
6.True. Cavitation is a process of formation of gases on the liquid or solid body.
7.True.They must need it.
8.False, incompressibility of liquids causes the pressurize more internally in the liquid.