Test1 - 22.381 Undergraduate Mechanical Engineering Fluid...

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22.381 Undergraduate Mechanical Engineering – Fluid Mechanics Test 1 :Chapter 1 and 2 Instructor : Prof. D. Willis Name and UMS ID: Please attempt all questions 1. (30pts) Answer the following short answer questions in the space provided. (a) What is the difference between a solid and a fluid ? (b) Define pressure and shear stress . (c) Explain how viscosity changes with respect to temperature in a liquid vs. a gas. (d) Show the difference between absolute pressure and gage pressure . (e) List 3 different non-Newtonian fluids and indicate whether they are a shear thinning , shear thick- ening or Bingham plastic ? (f) Briefly explain why p 1 6 = p 2 + ρgh in a gas? 1
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(g) Below draw one object in a static fluid that is in a stable hydrostatic equilibrium and another that is in an unstable hydrostatic equilibrium : (h) True or False (Circle your answer): In most applications a liquid can be considered incompressible. (i) True or False (Circle your answer): In most applications a
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Test1 - 22.381 Undergraduate Mechanical Engineering Fluid...

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