Engineering > EXAM > Chapter 9- Materials Engineering Exam Questions and Answers (All)

Chapter 9- Materials Engineering Exam Questions and Answers

Document Content and Description Below

The understanding and modification of the structure and properties of materials to improve the performance and processing of the material is called __. - ANSWER Materials Engineering Which of the following categories of material is a type of inorganic material with good conductivity to heat and electricity? - ANSWER Metals The ability of a material to withstand a load that squeezes the material is called __. - ANSWER Compression Strength Which of the following material properties is determined by how well heat is transferred through the material? - ANSWER Thermal Conductivity Which of the following is an application of material engineering? - ANSWER Nanotechnology Which of the following types of tests uses x-rays that pass through the material? - ANSWER Radiography test A small strand of material that ranges 1 nm- 60 nm in width is a __. - ANSWER Nanowire T/F Ceramics are brittle. - ANSWER True T/F Semiconductors are materials that can safely and effectively interact with the human body. - ANSWER False T/F Strain is a bending or twisting force. - ANSWER False T/F Thermal resistance is a reciprocal of thermal conductivity. - ANSWER True T/F Destructive tests and nondestructive tests are the two types of material testing. - ANSWER true T/F A test that sound waves bounce off changes in the material to determine the internal composition of a material is a radiography test. - ANSWER False T/F Nano- sized cylinders of carbon are called buckyballs. - ANSWER False The ability of a material to withstand a force that pulls the material apart. - ANSWER Tensile Strength The ability to return to the original dimensions if the stress is removed. - ANSWER Elasticity The amount of force or load that is applied to a material. - ANSWER Stress The deformation that occurs from stress. - ANSWER Strain The deformation that occurs from the yield point to the fracture point. - ANSWER Plasticity The measurement of how well electricity flows through a material. - ANSWER Conductivity A mixture of a metal with one or more additional elements. - ANSWER Alloy An organic material made up of a long chain of small molecules (primarily made up of carbon and hydrogen atoms) that form a much larger molecule. - ANSWER Polymer A very hard inorganic, refractory, nonmetallic material with little electrical conductivity. - ANSWER Ceramic

[Show More]

Last updated: 3 years ago

Preview 1 out of 2 pages

Buy Now

Instant download