A psychometry chart can directly supply the user with the density values of air

- State the assumptions associated with a material balance modeling approach and give an example of an environmental problem that would meet the assumptions.

You have been asked to obtain an object/structure/component that has failed (It may come fromyour home, workshop, an automobile repair shop, a machine shop, and so on) and investigate to:1. Determine the cause and type of failure (i.e., simple fracture, fatigue, creep).2. What are the working and environmental conditions that causes the failure?3. Propose measures that can be taken to prevent future incidents of this type of failure.4. After you have determined the failure type of your case study, your leader asked you to writeshortly about the other mechanisms of failures.

Which choice below best describes the mechanical property of materials called toughness?    a. Ability to compress without permanent deformation   b. Ability to bend in the elastic range   c. How much energy a material can absorb without breaking   d. Indentation resistance