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本课程起止时间为:2018-09-09到2019-01-06
本篇答案更新状态:已完结

【作业】Module 1 Introduction Module 1 Question1

1、 问题:List the groups of family of materials
评分规则: 【 每列出1类材料得1分

Module 1 Introduction Module 1 Quize

1、 问题:According to American Society for Testing Materials, materials are ___
选项:
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、 问题:The term of ______ describes the behavior of materials when subjected to some external force or condition
选项:
A:application
B:performance
C:properties
D:structures
答案: 【properties

3、 问题:Materials engineering involves, on the basis of ______ correlations, designing or engineering the structure of a material to produce a predetermined set of properties.
选项:
A:structure-nature
B:composition-structure
C:structure–property
D:composition-property
答案: 【structure–property

4、 问题:MSE involves the generation and application of knowledge relating _ to their _____ and uses, having interdisciplinary and multidisciplinary characteristics
选项:
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、 问题:_ is the primary selection criterion that will determine the final choice of materials
选项:
A:Availability
B:Cost
C:Deterioration
D:Processibility
答案: 【Cost

6、 问题:_____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.
选项:
A:Recyclable
B:Biodegradeble
C:Renewable
D:None of the above
答案: 【Recyclable

7、 问题:The smart materials have the ability to respond to ______
选项:
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、 问题: In the materials cycle, which of the following issues should we consider?
选项:
A:Cost
B:Sustainability
C:Biodegradability
D:Recyclability
答案: 【Sustainability;
Biodegradability;
Recyclability

9、 问题:Design for assembly reflects a new concept for disposing of products after their useful life
选项:
A:正确
B:错误
答案: 【错误

10、 问题:Design for disassembly emphasis easy product assembly by robots and other automated equipment
选项:
A:正确
B:错误
答案: 【错误

【作业】Module 2 Structure of Materials Module 2 Question 2

1、 问题:A single crystal of zinc, like many other single-metal crystal, is farly ductile. There is nothing to prevent slippage of planes of atoms over one another. Explain why some of these metals, like zinc, become brittle when they are in the polycrystalline state, although they are ductile in single-crystal form.
评分规则: 【 逐点回答,每点1分

Module 2 Structure of Materials Module 2 Quize

1、 问题:The key word to describe the nature of covalent bond is of electrons
选项:
A:sharing
B:swarming
C:transferring
D:spinning
答案: 【sharing

2、 问题:The key word to describe the nature of ionic bond is of electrons
选项:
A:sharing
B:swarming
C:transferring
D:spinning
答案: 【transferring

3、 问题:Which of the following statement about hydrogen bonding is NOT correct?
选项:
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

4、 问题:Amorphous solids have only order in the arrangement of constituent particles
选项:
A:long-range
B:short-range
C:medium-range
D:NO
答案: 【short-range

5、 问题: lattice parameters are used to describe a unit cell
选项:
A:Four
B:Five
C:Six
D:Seven
答案: 【Six

6、 问题:Which of the following crystal system has lattice parameters of a=b¹c; a=b=90oC, g=120oC?
选项:
A:Monoclinic crystal
B:Hexagonal crystal
C:Tetragonal crystal
D:Cubic crystal
答案: 【Hexagonal crystal

7、 问题: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 ___
选项:
A:Simple Cubic
B:Face Centered Cubic
C:Body Centered Cubic
D:NO
答案: 【Body Centered Cubic

8、 问题:The ability of an element to exist in different space lattices is called
选项:
A:allotropy
B:crystalline
C:solvent
D:amorphous
答案: 【allotropy

9、 问题:When impurity atoms are found in the voids or interstices among the host atoms, it is called a/an solid solution.
选项:
A:Substitutional
B:Vacancy
C:Interstitial
D:NO
答案: 【Interstitial

10、 问题:When impurity atoms replace the host atoms, it is called a/an solid solution
选项:
A: Substitutional
B:Vacancy
C:Interstitial
D:NO
答案: 【 Substitutional

11、 问题:In a (an) dislocation, an extra plane of atoms is inserted into part of the crystal lattice
选项:
A:screw
B:vacancy
C:interstitial
D:edge
答案: 【edge

12、 问题:Which one is the curve that represents the temperatures at which solidification begins?
选项:

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