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起止时间:2020-02-15到2020-07-15
更新状态:已完结
Unit 1 Materials Science and Engineering 第一单元单元测试
1、 Which of the following material is representative in exotic materials age?
A:aluminum
B:biomaterials
C:wood
D:alloy
答案: biomaterials
2、 ”From the very beginnings of prehistory, humans have manipulated substances so that they would be moreuseful.” What does the word “manipulate” mean in the sentence?
A:look after
B:look up
C:make up of
D:make use of
答案: make use of
3、 Materials science can also do the converse: As desirable properties are defined, the material that can display them, although it might not exist in nature, is designed. What does the phrase “do the converse” mean?
A:make an effect
B:make every effort
C:do sth from the opposite way
D:prevent sb from doing sth
答案: do sth from the opposite way
4、 Materials science remained empirical until the end of the ___ century when materials science, as we now understand it, began with the appearance of Mendeleev’s periodic table.
A:17th
B:18th
C:19th
D:20th
答案: 19th
5、 Who is responsible for examining the preparation,selection, and application of materials in agreement with known and desiredproperties?
A:materials scientists
B:materials engineers
C:materials managers
D:materials businessmen
答案: materials engineers
6、 Iron age appears in the wake of Steel age.
A:正确
B:错误
答案: 错误
7、 A desk made of wood belongs to solid material.
A:正确
B:错误
答案: 错误
8、 In terms of conductivity, isolator performs the worst.
A:正确
B:错误
答案: 正确
9、 Mechanical properties include deformation and fracture.
A:正确
B:错误
答案: 正确
10、 Materials scientists are always more significant than materials engineers.
A:正确
B:错误
答案: 错误
11、 In the selective process of materials engineering, the choice of material islimited by the required properties and the available b______.
答案: budget
12、 N___ is a unit of length in the metric system, equal to one billionth of a metre.
答案: nanometer
13、 By permitting electricity to travel freely, without resistance, such a s___ could dramatically improve the efficiency of power transmission technologies.
答案: superconductor
14、 In a database, there are usually two ways of search, i.e., basic search and a___ search.
答案: advanced
15、 If you want to search works of Noam Chomsky, what should be put into the search box? ______
答案: Chomsky Noam
Unit 2 The classification of materials Unit 2 Quiz
1、 ____ fibers are sometimes spun together with natural fibers to produce a cloth with blended properties.
A:Thermoplastic
B:Thermonuclear
C:Polymer
D:Polyester
答案: Polyester
2、 ____can make most materials stick together.
A:superglue
B:superconductor
C:polyester
D:thermonuclear
答案: superglue
3、 These are ______coatings, but may approach the performance of thermosetting coatings by the incorporation of amino resins (氨基树脂).
A:polymer
B:thermoplastic
C:superconductor
D:thermonuclear
答案: thermoplastic
4、 A _____ could dramatically improve the efficiency of power transmission technologies.
A:thermonuclear
B:polymer
C:polyester
D:superconductor
答案: superconductor
5、 Latex (胶乳), a material obtained from rubber trees, is a natural____ of isoprene (异戊二烯).
A:polyester
B:polymer
C:superconductor
D:thermoplastic
答案: polymer
6、 The nuclear reactions occurring in the interior of the sun and stars are______.
A:polyester
B:thermonuclear
C:superconductor
D:polymer
答案: thermonuclear
Unit 2 The classification of materials 第二单元单元测试
1、 ______ can make most materials stick together.
A:Superglue
B:Superconductor
C:Elastomer
D:Macromolecule
答案: Superglue
2、 A _____ could dramatically improve the efficiency of power transmission technologies.
A:superglue
B:superconductor
C:elastomer
D:macromolecule
答案: superconductor
3、 ____is a class of polymers whose deformation displayed by strain-stress curve is totally elastic.
A:Superglue
B:Superconductor
C:Elastomer
D:Macromolecule
答案: Elastomer
4、 A polymer is a large molecule, or _____, composed of many repeated subunits.
A:superglue
B:superconductor
C:elastomer
D:macromolecule
答案: macromolecule
5、 Which of the following metals is environmental friendly?
A:iron
B:aluminum
C:copper
D:titanium
答案: aluminum
6、 Which of the following metals is most suitable for the highest temperature?
A:iron
B:aluminum
C:copper
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