Book 1 Answers PDF

SECTION 2 (ANSWERS) INTRODUCTION Section 1 of this book presented multiple-choice-questions in the areas mentioned below. More than 360 multiple-choice questions and answers are presented that deal with the following topics in the area of Materials Science: · Introduction to Materials...

SECTION 2 (ANSWERS) INTRODUCTION Section 1 of this book presented multiple-choice-questions in the areas mentioned below. More than 360 multiple-choice questions and answers are presented that deal with the following topics in the area of Materials Science: · Introduction to Materials Science · Atomic Bonding · Atomic Bonding & Material Properties The answers to the questions are presented in Section 2 (below) of this book. The correct answers are bolded. ******ebook converter DEMO Watermarks*******  CH 1 – INTRODUCTION TO MSE This chapter has 37 questions. SET 1. INTRODUCTION & MSE TRIANGLE Resource: Intro to Materials Science – a guided inquiry, Douglas, Chap. 2, pages 11-17 This sub-topic has 12 questions. 1. Materials science helps us to classify ___ and understand their ___ and ___. a. liquids; nuclear properties; quark components b. materials; properties; uses c. materials; properties; costs d. solids; colors; sounds e. gases; colors; sounds 2. The ___ of a material affects its ___ which then determines its ___. a. atoms; structure; processing b. properties; processing; structure c. processing; structure; properties d. phase; cost; color e. phase; processing; cost 3. Materials are commonly classified based on their ___ and ___. a. colors; density b. colors; sounds c. phases; colors d. properties; uses e. properties; costs ******ebook converter DEMO Watermarks*******  4. The type of bonding in the material determines its ___ a. color b. taste c. sound d. feel e. structure 5. What are the three components of the MSE triangle? a. color; taste; sound b. cost; phases; properties c. phases; colors; properties d. structure; properties; processing e. structure; properties; costs 6. What does structure mean in materials science? a. civil engineering structures b. the arrangement of atoms c. the size of buildings you can build with the material d. the small-scale microstructure of the material e. the large-scale macrostructure of the material 7. What are the major kinds of properties of materials? ___ properties. a. mechanical; electrical; thermal b. color; taste; sound c. frequency; wavelength; speed of propagation d. mechanical; electrical; civil e. architectural; microstructural; macrostructural 8. What kinds of processing can a material subjected to when we use it to manufacture a product for sale in a market? a. creep stressing b. fatigue testing c. heat-treatment; mechanical deformation d. electrical stressing e. painting; sound treatment ******ebook converter DEMO Watermarks*******  9. What is the composition of plain carbon steel? Approximately ___ wt% Fe and __ wt% C. a. 90; 10 b. 10; 90 c. 50; 50 d. 99; 1 e. 1; 99 10. What is the melting temperature of plain carbon steel? Approximately ___.degrees Celsius. a. 150 b. 250 c. 550 d. 1050 e. 1450 11. What is the temperature of a candle flame? Approximately ___ degrees Celsius. a. 1000 b. 500 c. 200 d. 100 e. 20 12. How do we control the properties of a given material? We use ___ to change the __ of the material in order to modify or control its ___. a. sound exposure; properties; structure b. fatigue stressing; structure; processing c. creep stressing; creep; processing d. processing; structure; properties e. processing; structure; color ******ebook converter DEMO Watermarks*******  SET 2. CLASSIFICATION OF MATERIALS BASED ON PROPERTIES Resource: Intro to Materials Science – a guided inquiry, Douglas, Chap. 2, pages 11-17 This sub-topic has 14 questions. 1. Based on structure, there are ___ types of materials. a. 3 b. 2 c. 4 d. 6 e. 10 2. The ___ types of materials, based on structure, are: ___ a. two; metals; polymers b. two; metals; ceramics c. three; amorphous; crystalline; semicrystalline d. three; oxides; nitrides; metals e. three; metals; polymers; ceramics 3. Plastics and rubbers are ___ a. polymers b. ceramics c. conjugated crystals d. crystalline e. oxides 4. What kind of material can withstand relatively high temperatures and has low thermal conductivity? a. polymers b. metals c. ceramics ******ebook converter DEMO Watermarks*******  d. plastics e. rubbers 5. Which of the following materials has a low density? a. metals b. ceramics c. plastics d. silicates e. carbonates 6. What property is the most important for a material that is to be used as reinforcement for building a skyscraper? a. ductility b. brittleness c. strength d. weight e. none of the above 7. What property is the most important for a material that is to be used for building a bridge? a. ductility b. brittleness c. weight d. strength e. none of the above 8. What property is the most important for a material that is to be used for making the casing of a laptop? a. ductility b. brittleness c. light-weight d. strength e. low electrical resistance ******ebook converter DEMO Watermarks*******  9. What property is the most important for a material that is to be used for making eye-glasses? a. ductility b. optical transparency c. brittleness d. strength e. high electrical resistance 10. The purpose of a ___ material is to provide mechanical ___ or ___ to an engineered structure. a. electrical; strength; stiffness b. thermal; ductility; flexibility c. structural; strength; stiffness d. magnetic; magnetism; strength e. 11. One purpose of a ___ material is to be compatible with the ___ environment inside a human body. a. electrical; electrical b. magnetic; magnetic c. bio; corrosive d. chemical; chemical e. nuclear; nuclear 12. The purpose of ___ material is to control the ___ of charges in a computer chip. a. a computer; number b. a computer; movement c. a thermal; heat d. an electronic; number e. an electronic; conduction 13. The unique properties of ceramics include ___ and ___ melting temperatures. a. brittleness; high b. brittleness; low c. ductility; high ******ebook converter DEMO Watermarks*******  d. ductility; low e. none of the above 14. The unique properties of metals include ___ and ___ melting temperatures. a. brittleness; high b. brittleness; low c. ductility; high d. ductility; intermediate e. none of the above ******ebook converter DEMO Watermarks*******  SET 3. CLASSIFICATION OF MATERIALS BASED ON USE Resource: Intro to Materials Science – a guided inquiry, Douglas, Chap. 2, pages 11-17 This sub-topic has 11 questions. 1. What kind of material would you use for the thermal insulation of a furnace? a. metal b. polymer c. ceramic d. plastic e. steel 2. What kind of material would you use for a light-weight air-freight container? a. metal b. silicate c. plastic d. ceramic e. rubber 3. A material used to provide ___ to an engineered structure is called a ___ material. a. strength; strengthening b. strength; structural c. flexibility; structural d. shape; structural e. resistance; resistive 4. A material used in a human body is called a ____ material. a. bio b. human ******ebook converter DEMO Watermarks*******  c. surgical d. flexible e. bionatural 5. A material used in a computer chip based on its ___ properties is called an ___ material. a. chemical; chemical b. material; material c. thermal; thermoelectric d. electronic; electronic e. computer; computer 6. ___ materials are used for their magnetic properties. a. thermal b. structural c. thermal d. magnetic e. electronic 7. ___ materials are used inside jet engines. a. high-temperature b. plastic c. aluminum d. magnetic e. electronic 8. ___ materials are used inside nuclear reactors a. low-temperature b. plastic c. nuclear d. magnetic e. electronic 9. Stainless steel screws are used in __ environments. a. steel ******ebook converter DEMO Watermarks*******  b. corrosive c. thermal d. structural e. electrical 10. We use __ for grocery bags because the material is ___ and ___. a. metal; strong; inexpensive b. ceramic; light; inexpensive c. plastic; light; inexpensive d. paper; strong; inexpensive e. none of the above 11. List three different classes of materials based on field of use, ___ materials, ___ materials and ___ materials. a. Aerospace; ceramic; metals b. Polymer; metal; ceramic c. Aerospace; electronic; structural d. Polymer; metals; ceramics e. none of the above ******ebook converter DEMO Watermarks*******  CH 2 – INTRODUCTION TO MATERIALS There are 63 questions and four question-sets in this chapter. The first three question-sets have 30 or fewer questions each, for possible use as homework-assignments and for ease of use with 30-60 minute study sessions. The fourth question set presents all of the questions together in one set (as a resource for longer study sessions or for use as a question data bank for a class). SET 1 There are 30 questions in this set. 1. Why study the principles of materials science? They help us to __ new __ for use in __ applications. a. develop; materials; engineering b. discover; forms of matter and energy; scientific c. develop; forms of atomic particles; scientific d. develop; forms of materials energy; engineering e. none of the above. 2. Materials have an impact on __ and __ a. civilization; future history b. civilization; our daily lives c. metals; ceramic atoms d. metallic atoms; polymer atoms e. atomic particles; sub-atomic particles ******ebook converter DEMO Watermarks*******  3. The major material’s families are __, __ and __. a. plastics; polymers; ceramics b. metals; metalloids; ceramics c. metals; polymers; ceramics d. metals; polymers; wood e. paper; polymers; wood 4. A material’s __ and __ affect the ___ of objects made of that material. a. shape; processing; properties b. structure; form; properties c. structure; processing; consequence d. structure; processing; properties e. none of the above 5. Knowledge of a material’s __ enable us to select the right __ for an engineering __ based on its __ requirements. a. constituents; material; component; design b. properties; design; component; design c. properties; material; application; design d. shape; material; component; material e. properties; material; component; design 6. Materials benefit and advance civilization by providing the basis for __ and __ applications in a given society and culture. a. cultural; societal b. science; scientific c. science; engineering d. cultural; technological e. technology; technological 7. What technological material and tools dominated human civilization from 9000 BC to 3000 BC? __ as a material, and tools made of __. a. paper; paper b. stone; stone c. rock; paper ******ebook converter DEMO Watermarks*******  d. bronze; bronze e. iron; iron 8. What technological material and tools dominated human civilization from 3000 BC to 1200 BC? __ as a material, and tools made of __. a. bronze; bronze b. stone; stone c. iron; iron d. silicon; silicon e. information; information 9. What technological material and tools dominated human civilization from 1200 BC to 1860 AD? __ as a material, and tools made of __. a. bronze; bronze b. stone; stone c. iron; iron d. copper; copper e. silicon; silicon 10. What technological material and tools dominated human civilization from 1971 to the present day? __ as a material, and __ made of __. a. bronze; tools; bronze b. stone; flint hand-axes; stone c. iron; iron d. silicon; microchips; silicon e. plastics; toys; plastic 11. What technological materials are likely to most significantly impact human civilization in the 21st and 22nd centuries? __ and __. a. iron; steel b. carbon; coal c. solar power; solar energy d. silicon; microchips e. nanomaterials; nano-biomaterials ******ebook converter DEMO Watermarks*******  12. What are the requirements for materials used for hip implants? __, __, __, and __. a. flexibility; cyclic endurance; hydrophobicity; vacuum compatibility b. strength; cyclic endurance; lubricity; biocompatibility c. flexibility; cyclic endurance; hydrophilicity; biocompatibility d. strength; cyclic endurance; hydrophobicity; vacuum compatibility e. flexibility; cyclic endurance; hydrophilicity; biocompatibility 13. A hip implant needs a material __ to hold the acetabular cup in place. a. fixing agent b. lubricant c. compression d. tension e. bolt and nut 14. A hip implant needs a __ material to __ the acetabular cup in action. a. glue; glue b. lubricating; lubricate c. fixing agent; fix d. compressive; compress e. tensile; tension 15. A hip implant needs a material __ to __ the femoral stem to the femoral bone. a. lubricant; lubricate b. compressor; compress c. tensor; tension d. fixing agent; glue e. lubricant; lubricate 16. The process for selection of a material (for a given application) include the material __ required in the application, the material __ and __ that will fulfill the __ requirements, and the kind of __ that fit the different materials for that application. a. energy; type; structure; property; shape processing b. properties; energy; structure; property; shape processing ******ebook converter DEMO Watermarks*******  c. properties; type; energy; property; shape processing d. properties; type; structure; shape; energy processing e. properties; type; structure; property; shape processing 17. Static lab-properties of a material include __, __, __ and __ properties. a. mechanical; thermal; electrical; optical b. nuclear; thermal; electrical; optical c. mechanical; optimal; electrical; optical d. mechanical; thermal; suboptimal; optical e. mechanical; thermal; electrical; superoptimal 18. Application-related properties of a material include __, __, __ related properties. a. tensile loading; temperature; vacuum expansion b. cyclic loading; tensile compression; corrosion c. cyclic loading; temperature; corrosion d. cyclic loading; temperature; vacuum expansion e. compressive tension; pressure; corrosion 19. The three major families of materials include __, __ and __. a. materials; ceramics; polymers b. metals; ceramics; glasses c. metals; metalloids; polymers d. metals; ceramics; polymers e. metals; plastics; polymers 20. The structural features of a material include its __, __, and __. a. color; composition; atomic order b. bonding; sound; atomic order c. bonding; composition; taste d. color; sound; taste e. bonding; composition; atomic order ******ebook converter DEMO Watermarks*******  21. Ceramic materials are shaped by __ ceramic __ at __ temperatures of __ degrees C. a. sintering; particles; high; > 600C b. heating; solid; low;