材料导论(北京化工大学)1463282524 中国大学慕课答案2024完整版100分

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起止时间:2021-03-19到2021-06-20
更新状态:每5天更新一次

Module 1 Introduction Module 1 Quiz

1、 According to American Society for Testing Materials, materials are ___.

A:the matter of the universe
B:these substances having properties that make them useful in structures and machines
C:these substances having properties that make them useful in products and systems
D:these substances having properties that make them useful in structures, machines, devices, products, and systems
答案: these substances having properties that make them useful in structures, machines, devices, products, and systems

2、 The term of ______ describes the behavior of materials when subjected to some external force or condition.

A:application
B:performance
C:properties
D:structures
答案: properties

3、 Materials engineering involves, on the basis of ______ correlations, designing or engineering the structure of a material to produce a predetermined set of properties.

A:structure-nature
B:composition-structure
C:structure–property
D:composition-property
答案: structure–property

4、 MSE involves the generation and application of knowledge relating _ to their _____ and uses, having interdisciplinary and multidisciplinary characteristics.

A:composition of materials, properties
B:composition, structure and processing of materials, properties
C:composition, structure and processing of materials, application
D:structure of materials, application
答案: composition, structure and processing of materials, properties

5、 _ is the primary selection criterion that will determine the final choice of materials.

A:Availability
B:Cost
C:Deterioration
D:Processibility
答案: Cost

6、 _____means that a material, after completing its life cycle in one component, could be reprocessed, could re-enter the materials cycle, and could be re-used in another component.

A:Recyclable
B:Biodegradeble
C:Renewable
D:None of the above
答案: Recyclable

7、 The smart materials have the ability to respond to ______.

A:the environmental changes
B:the changes in temperature
C:the changes in pH value
D:the changes in glucose concentration
答案: the environmental changes

8、 In the materials cycle, which of the following issues should we consider?

A:Cost
B:Sustainability
C:Biodegradability
D:Recyclability
答案: Sustainability;
Biodegradability;
Recyclability

9、 Design for assembly reflects a new concept for disposing of products after their useful life.

A:正确
B:错误
答案: 错误

10、 Design for disassembly emphasizes easy product assembly by robots and other automated equipment.

A:正确
B:错误
答案: 错误

Module 2 Structure of Materials Module 2 Quiz

1、 The key word to describe the nature of covalent bond is of electrons

A:sharing
B:swarming
C:transferring
D:spinning
答案: sharing

2、 Which of the following statement about hydrogen bonding is NOT correct?

A:Asymmetrical charge distribution
B: Static electrical attraction between positive and negative charges
C:An attraction force between adjacent charges with opposite signs
D:The strongest of the Primary bonding
答案: The strongest of the Primary bonding

3、 Amorphous solids have only order in the arrangement of constituent particles

A:long-range
B:short-range
C:medium-range
D:None of the above
答案: short-range

4、 lattice parameters are used to describe a unit cell

A:Four
B:Five
C:Six
D:Seven
答案: Six

5、 Which of the following crystal system has lattice parameters of a=b¹c; a=b=90°, g=120°?

A:Monoclinic crystal
B:Hexagonal crystal
C:Tetragonal crystal
D:Cubic crystal
答案: Hexagonal crystal

6、 If the unit cell contains an identical component in the center of the cube in addition to those at the corners of the cube, then it is called ___

A:Simple Cubic
B:Face Centered Cubic
C:Body Centered Cubic
D:NO
答案: Body Centered Cubic

7、 The ability of an element to exist in different space lattices is called

A:allotropy
B:crystalline
C:solvent
D:amorphous
答案: allotropy

8、 When impurity atoms replace the host atoms, it is called a/an solid solution

A: Substitutional
B:Vacancy
C:Interstitial
D:None of the avove
答案: Substitutional

9、 In Polymers, bonds inside the long chain molecules are secondary bonding, bonds among the chains are covalent bonding

A:正确
B:错误
答案: 错误

10、 Long range order means the orderly arrangement of atoms extends throughout the entire material.

A:正确
B:错误
答案: 正确

11、 If you cool molten metal at extremely rapid rate, amorphous metal can form

A:正确
B:错误
答案: 正确

12、 Both Face-centered cubic and Hexagonal Close-packed are close-packed crystal structures

A:正确
B:错误
答案: 正确

13、 Because of allotropy, steel can be produced from iron

A:正确
B:错误
答案: 正确

14、 In brass, an alloy of Copper and Zinc, Zinc atoms replace Copper atoms to form an interstitial solid solution

A:正确
B:错误
答案: 错误

15、 The existence of point defects，impurity atoms, dislocations，grain boundary may all hinder the dislocation movement, hence weaken the materials