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中国大学MOOC 材料导论-北京化工大学 测验与作业答案

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Module 1 Introduction

1 ___________means that a material, after completing its life cycle in one component, could be reprocessed and re-used in another component, then re-enter the materials cycle again.
喵查答案:Recyclable material
Biodegradeble material
Renewable material
None of the above

2 MSE involves the generation and application of knowledge relating _____ to their _______ and uses, having interdisciplinary and multidisciplinary characteristics.
composition of materials……properties
喵查答案:composition, structure and processing of materials……properties
composition, structure and processing of materials……application
structure of materials……application

3 Materials engineering involves, on the basis of ______ correlations, designing or engineering the structure of a material to produce a predetermined set of properties.
structure-nature
composition-structure
喵查答案:structure–property
composition-processing

4 The term of ______ describes the behavior of materials when subjected to some external force or condition.
application
processing
喵查答案:property
structure

5 In selecting a material for a common application, _____ is the primary selection criterion that will determine the final choice of materials.
Availability
喵查答案:Cost
Processability
Recyclability

6 ______ are these substances having properties that make them useful in structures, machines, devices, products, and systems.
Atoms
Electrons
喵查答案:Materials
Molecules

7 __________ is a concept that places recycling at the beginning or design stage of the materials cycle to ensure that waste going into municipal landfills will be minimized.
design for assembly
喵查答案:design for disassembly
green design
input/output inventory

8 The structure of a material depends on how it is processed, and a material’s performance is a function of its properties.
喵查答案:正确
错误

9 Design for assembly emphasis easy product assembly by robots and other automated equipment.
喵查答案:正确
错误

10 Life cycle analysis is used to improve the environmental performance of products.
喵查答案:正确
错误

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