大学MOOC IntroductiontoMaterials(盐城工学院)1462659163 最新慕课完整章节测试答案
Module1Introduction
文章目录
0305签到答题
1、单选题:
宏观结构是指—
选项:
A: Microscopic Structure
B: Macroscopic Structure
C: Subatomic
D: Atomic or molecular
答案: 【 Macroscopic Structure】
2、单选题:
间同立构是指—
选项:
A: Syndioatactic
B: Atactic
C: Isotactic
D: None
答案: 【 Syndioatactic】
3、填空题:
(汉译英)陶瓷材料
答案: 【 ceramics##%_YZPRLFH_%##Ceramics##%_YZPRLFH_%##ceramic##%_YZPRLFH_%##Ceramic】
4、填空题:
(英译汉)Nonmetallic elements
答案: 【 非金属元素】
5、填空题:
(汉译英)单体
答案: 【 monomer##%_YZPRLFH_%##Monomer##%_YZPRLFH_%##monomers##%_YZPRLFH_%##Monomers】
6、填空题:
(汉译英)复合材料
答案: 【 composites##%_YZPRLFH_%##Composites##%_YZPRLFH_%##composite##%_YZPRLFH_%##Composite】
7、填空题:
(汉译英)智能材料
答案: 【 smart materials##%_YZPRLFH_%##Smart materials##%_YZPRLFH_%##Smart material##%_YZPRLFH_%##smart material】
8、填空题:
(汉译英)脆性
答案: 【 brittleness##%_YZPRLFH_%##Brittleness】
9、填空题:
(汉译英)可持续性(名词)
答案: 【 sustainability##%_YZPRLFH_%##Sustainability】
10、填空题:
(英译汉)Magnesium
答案: 【 镁##%_YZPRLFH_%##金属镁##%_YZPRLFH_%##镁元素】
11、填空题:
(英译汉)Aluminum oxide (or Alumina)
答案: 【 氧化铝】
12、填空题:
(英译汉)Degree of crystallinity
答案: 【 结晶度】
13、填空题:
(英译汉)Ductility
答案: 【 延展性##%_YZPRLFH_%##延性##%_YZPRLFH_%##展性】
14、填空题:
(英译汉)Toughness
答案: 【 韧性】
15、填空题:
(英译汉)Actactic
答案: 【 无规立构##%_YZPRLFH_%##无规的】
16、填空题:
12 (英译汉)Corrosion-resistant
答案: 【 耐腐蚀性】
17、填空题:
(英译汉)Refractories
答案: 【 耐火材料##%_YZPRLFH_%##耐火】
18、填空题:
(汉译英)单体
答案: 【 Monomer##%_YZPRLFH_%##Monomers##%_YZPRLFH_%##monomer##%_YZPRLFH_%##monomers】
19、填空题:
(填空)Synthetic polymers include (塑料), rubber or elastomer, fiber, (粘合剂), and (涂料) (单词间空格键分开,小写字体)
答案: 【 plastics adhesive coating】
20、填空题:
(填空)Furthermore, ceramic materials are typically (绝缘的)to heat and electricity, and are more resistant to high temperatures and harsh environments than metals and polymers.
答案: 【 insulative】
0331第九次课签到答题
1、填空题:
(英译汉) Valence electron
答案: 【 价电子】
2、填空题:
(英译汉) Ceramics
答案: 【 陶瓷材料##%_YZPRLFH_%##陶瓷】
3、填空题:
(英译汉) Composites
答案: 【 复合材料】
4、填空题:
(英译汉) Semiconductor
答案: 【 半导体】
5、填空题:
(英译汉) Steel
答案: 【 钢】
6、填空题:
(英译汉) Refractories
答案: 【 耐火材料##%_YZPRLFH_%##耐火】
7、填空题:
(英译汉) Capacitors
答案: 【 电容器】
8、填空题:
(英译汉) Insulators
答案: 【 绝缘体】
9、填空题:
(英译汉) Cement
答案: 【 水泥】
10、填空题:
(英译汉) Concrete
答案: 【 混凝土】
11、填空题:
(英译汉) Conductor
答案: 【 导体】
12、填空题:
(英译汉) Elasticity
答案: 【 弹性】
13、填空题:
(英译汉) Plasticity
答案: 【 塑性】
14、填空题:
(英译汉) Ductility
答案: 【 延展性】
15、填空题:
(英译汉) Fatigue
答案: 【 疲劳】
16、填空题:
(英译汉) Abrasion resistance = Wear resistance
答案: 【 耐磨性】
17、填空题:
(英译汉) Toughness
答案: 【 韧性】
18、填空题:
(英译汉) Brittleness
答案: 【 脆性】
19、填空题:
(英译汉) Thermal conductivity
答案: 【 热传导】
20、填空题:
(英译汉) Thermal expansion
答案: 【 热膨胀】
21、填空题:
(英译汉) Refractive index
答案: 【 折射率】
22、填空题:
(英译汉) Absorption
答案: 【 吸收##%_YZPRLFH_%##吸收现象】
23、填空题:
(英译汉) Reflection
答案: 【 反射##%_YZPRLFH_%##反射作用】
24、填空题:
(英译汉) Column or group
答案: 【 族】
25、填空题:
(英译汉) Transition metals
答案: 【 过渡金属】
Module1Quiz
1、单选题:
The term of ______ describes the behavior of materials when subjected to some external force or condition.
选项:
A: application
B: processing
C: property
D: structure
答案: 【 property】
2、单选题:
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-processing
答案: 【 structure–property】
3、单选题:
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】
4、单选题:
___________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 material
B: Biodegradeble material
C: Renewable material
D: None of the above
答案: 【 Recyclable material】
5、多选题:
In selecting a material for a specific application, which of the following issues should be considered?
选项:
A: Cost
B: Availability
C: Processability
D: Recyclability
答案: 【 Cost;
Availability;
Processability;
Recyclability】
6、多选题:
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: 【 the matter of the universe;
these substances having properties that make them useful in structures and machines;
these substances having properties that make them useful in products and systems;
these substances having properties that make them useful in structures, machines,
devices, products, and systems】
7、判断题:
Life cycle analysis is used to improve the environmental performance of products.
选项:
A: 正确
B: 错误
答案: 【 正确】
8、判断题:
Design for disassembly reflects a new concept for disposing of products after their useful life.
选项:
A: 正确
B: 错误
答案: 【 正确】
9、判断题:
Design for assembly emphasis easy product assembly by robots and other automated equipment
选项:
A: 正确
B: 错误
答案: 【 正确】
Video1WhyStudytheCourse
1、单选题:
In the first video of Module 1, the examples used to demonstrate the successful application of materials include ________
选项:
A: high-speed
railways
B: Shenzhou-11
spacecraft
C: Chinese
dragon
D: All
of the above
答案: 【 All
of the above】
2、单选题:
Which of the following characteristics is not desirable for the materials used to make the helmets?
选项:
A: Great heat resistance
B: Great impact resistance
C: High density
D: Great strength
答案: 【 High density】
3、单选题:
Which of the following materials belong to advanced materials?
选项:
A: Functional
materials
B: Smart
materials
C: Biomaterials
D: All
of the above
答案: 【 All
of the above】
4、判断题:
The smart materials can respond to the environmental changes.
选项:
A: 正确
B: 错误
答案: 【 正确】
Video2MSEandmaterialsselection
1、单选题:
_______ is the rule in materials selection.
选项:
A: Compromise
B: Cost effectiveness
C: In-service conditions
D: Ideal combination of properties
答案: 【 Compromise】
2、单选题:
There are ____ components involved in the discipline of materials science and engineering.
选项:
A: three
B: four
C: five
D: six
答案: 【 four】
3、多选题:
The term materials science and engineering combine both _______ and ________.
选项:
A: materials science
B: materials engineering
C: materials technology
D: materials processing
答案: 【 materials science;
materials engineering】
Video3TheMaterialsCycles
1、单选题:
Which of the following is not the approaches used to minimize any possible adverse impacts on the environment at all stages of the materials cycle?
选项:
A: life cycle analysis
B: life cycle assessment
C: green design
D: design for assembly
答案: 【 design for assembly】
2、多选题:
Which of the following step(s) belongs (or belong) to materials cycles?
选项:
A: Extracting raw materials
B: Creating bulk materials
C: Fabricating products and system
D: Recycling and disposal
答案: 【 Extracting raw materials;
Creating bulk materials;
Fabricating products and system;
Recycling and disposal】
3、判断题:
The materials cycle is a system that involves interactions and exchanges among materials, energy, and the environment.
选项:
A: 正确
B: 错误
答案: 【 正确】
Video4FamilyofMaterials
1、单选题:
Which of the following is not ceramics?
选项:
A: Porcelain
B: Magnesium
C: Glass
D: Structural clay
答案: 【 Magnesium】
2、判断题:
Advanced materials include semiconductors, biomaterials, smart materials and nanomaterials.
选项:
A: 正确
B: 错误
答案: 【 正确】
Module2StructureofMaterials
Video10Phasediagram
1、单选题:
A homogeneous part or aggregation of material that differs from another part due to difference in structure
选项:
A: Liquidus
B: Solidus
C: Solution
D: Phase
答案: 【 Phase】
2、多选题:
When an alloy is at a temperature above the solidus but below the liquidus, it coexists as ___________
选项:
A: Liquid
B: Gas
C: Solid
D: Plasma
答案: 【 Liquid;
Solid】
3、判断题:
The Gibbs rule represents a criterion for the number of phases that coexist within a system at equilibrium
选项:
A: 正确
B: 错误
答案: 【 正确】
Video1PrimaryBonds
1、单选题:
The bonding type of Aluminum is
选项:
A: Ionic bondingIonic bonding
B: Metallic bonding
C: Covalent bonding
D: Hydrogen bonding
答案: 【 Metallic bonding】
Video2SecondaryBonds
1、单选题:
O2 is a molecule
选项:
A: Polar
B: Non-Polar
C: No
D: No
答案: 【 Non-Polar】
2、判断题:
Because of hydrogen bonding, hydrogen fluoride (HF) has a higher boiling point than hydrogen chloride (HCl)
选项:
A: 正确
B: 错误
答案: 【 正确】
Video3CrystallineandAmorphousSolids
1、单选题:
Amorphous metals develop their miscrostructure as a result of _______
选项:
A: Dendrites
B: Directional solidification
C: Slip
D: Extremely rapid cooling
答案: 【 Extremely rapid cooling】
2、多选题:
A crystalline solid has
选项:
A: Long-range order
B: Distinctive X-ray pattern
C: Irregular arrangement of atoms
D: No
答案: 【 Long-range order;
Distinctive X-ray pattern】
Video4UnitCellsandSpaceLattices
1、判断题:
When stacked together, the unit cells form the whole crystal
选项:
A: 正确
B: 错误
答案: 【 正确】
2、判断题:
The periodicity of any single crystal can be described by an equivalent space lattice
选项:
A: 正确
B: 错误
答案: 【 正确】
Video5CrystalSystems
1、判断题:
In crystallography, there are eight crystal systems and 14 Bravais lattices
选项:
A: 正确
B: 错误
答案: 【 错误】
Video7PointDefects
1、判断题:
Steel is an interstitial solid solution with impurity carbon atoms in iron crystal lattice
选项:
A: 正确
B: 错误
答案: 【 正确】
Video8LineDefectsandDislocationMovement
1、判断题:
Dislocations make it easier for slip or plastic deformation to occur.
选项:
A: 正确
B: 错误
答案: 【 正确】
2、判断题:
A ductile metal becomes harder and stronger as it is subjected to cold working
选项:
A: 正确
B: 错误
答案: 【 正确】
Video9AreaDefects
1、单选题:
If a crystalline solid consists of a number of grains, such material is called
选项:
A: A Polycrystalline Solid
B: An Amorphous Solid
C: A Single Crystal
D: No
答案: 【 A Polycrystalline Solid】
2、判断题:
Internal atoms have missing bonds, so, they are in higher energy states than surface atoms
选项:
A: 正确
B: 错误
答案: 【 错误】
第八次课Chemicalbondings
1、单选题:
(单选)The bonding type of CO2 is
选项:
A: A Metallic bonding
B: B ionic bonding
C: C Hytrogen bongding
D: D Covalent bonding
答案: 【 D Covalent bonding 】
2、多选题:
(多选) Which one is belong to nonpolar molecular?
选项:
A: A H2
B: B HCl
C: C CO2
D: D O2
答案: 【 A H2 ;
C CO2 ;
D O2】
3、多选题:
(多选) Which one is belong to polar molecular?
选项:
A: A Hydrofluoric acid (HF)
B: B CO2
C: C H2O
D: D Carbon monoxide (CO )
答案: 【 A Hydrofluoric acid (HF) ;
C H2O ;
D Carbon monoxide (CO )】
4、多选题:
(多选) Which one is containing Hytrogen bonds?
选项:
A: A NH3
B: B H2O
C: C HF
D: D CH4
答案: 【 A NH3 ;
B H2O ;
C HF 】
5、多选题:
(多选) Which one is containing Hytrogen bonds?
选项:
A: A Nylon
B: B Kevlar
C: C Polyurethane
D: D Polystyrene
答案: 【 A Nylon ;
B Kevlar ;
C Polyurethane 】
6、判断题:
(判断) Because of hydrogen bonding, hydrogen fluoride (HF) has a higher boiling point than hydrogen chloride (HCl)
选项:
A: 正确
B: 错误
答案: 【 正确】
7、判断题:
(判断)In Polymers, bonds inside the long chain molecules are covalent bonding, bonds among the chains are secondary bonding.
选项:
A: 正确
B: 错误
答案: 【 正确】
8、判断题:
(判断)In metals, such as iron, zinc, aluminum, it is the covalent bonding which hold metal atoms together.
选项:
A: 正确
B: 错误
答案: 【 错误】
9、判断题:
(判断)Diamond is the hardest naturally occurring material known to man and is a good electrical conductor, while graphite is soft and a good insulator.
选项:
A: 正确
B: 错误
答案: 【 错误】
10、填空题:
(填空)Interatomic bonding can be classified into primary bonding and .
答案: 【 secondary bonding】
11、填空题:
(填空)Primary bonding is divided into three groups. One is , which is the sharing of electrons, the second is , involving the transfer of electrons, the third is , which is the swarming of electrons. (单词间空格分开,依次填写)
答案: 【 covalent bonding ionic bonding metallic bonding】
12、填空题:
(填空) is the intramolecular forces, that means forces within a molecule, the bonding involves electron transfer or sharing, and they are very strong. While secondary bonding is the (分子间的)forces, that means the forces between two molecules. They are weak.
答案: 【 Primary bonding intermolecular】
13、填空题:
(填空)Within the Pentane molecules, five Carbon atoms bonded to 12 hydrogen atoms by strong , which is one type of the primary bonding; between pentane molecules, are weak intermolecular forces.
答案: 【 covalent bonding】
14、填空题:
(填空)calcium fluoride(请写化学式)
答案: 【 CaF2】
15、填空题:
(填空)Secondary bonding is a bonding between atoms and molecules, it is relatively weak, about 4-30 kJ/mol. Secondary bonding can be classified into van der Waals forces and .(物理的,氢键) (单词间空格分开,依次填写)
答案: 【 physical hydrogen bonding】
16、填空题:
(填空) According to whether molecules possess a permanent electric dipole moment, molecules can be classified into molecules and polar molecules.
答案: 【 nonpolar】
17、填空题:
(填空)Ceramics are inorganic compounds. Metal and non-metal atoms are primarily held in and or bonds. (单词间空格分开,依次填写)
答案: 【 ionic covalent##%_YZPRLFH_%##covalent ionic】
Module3PropertiesofMaterials
0305结课点名挑战答题
1、填空题:
(汉译英)回弹性
答案: 【 Resilience##%_YZPRLFH_%##resilience】
2、填空题:
(汉译英)韧性
答案: 【 toughness##%_YZPRLFH_%##Toughness】
3、填空题:
(英译汉)Impect testing
答案: 【 冲击试验##%_YZPRLFH_%##冲击实验##%_YZPRLFH_%##冲击测试】
4、填空题:
(汉译英)疲劳强度
答案: 【 Fatigue strength##%_YZPRLFH_%##fatigue strength】
5、填空题:
(英译汉)Tensile strength
答案: 【 拉伸强度】
6、填空题:
(英译汉)Fatigue ratio
答案: 【 疲劳比】
0305课间休息挑战答题
1、填空题:
(汉译英)塑性形变
答案: 【 plastic deformation##%_YZPRLFH_%##Plastic deformation】
2、填空题:
(汉译英)屈服强度
答案: 【 Yield strength##%_YZPRLFH_%##yield strength】
3、填空题:
(汉译英)延展性
答案: 【 ductility##%_YZPRLFH_%##Ductility】
4、填空题:
(英译汉)Elastic modulus
答案: 【 弹性模量】
5、填空题:
(英译汉)Shear strain
答案: 【 剪切应变】
6、填空题:
(英译汉)Stiffness
答案: 【 刚度】
7、填空题:
(英译汉)Elongation
答案: 【 伸长率##%_YZPRLFH_%##断裂伸长率】
0310签到答题约需要20min
1、单选题:
(单选)Fatigue limits of a typical ferrous alloy is about____ tensile strength.A
选项:
A: A.Half
B: B.1/3
C: C.1/4
D: D.1/5
答案: 【 A.Half】
2、单选题:
(单选)In a stress-strain diagram, which region refers to ductile property?
选项:
A: A.Elastic Region
B: B.Plastic Region
C: C.Elastic and Plastic Region
D: D.No
答案: 【 C.Elastic and Plastic Region】
3、单选题:
(单选)_____is defined as a sudden application of a load confined to a localized area of a material.
选项:
A: A.Stretch
B: B.Compress
C: C.Punch
D: D.Impact
答案: 【 D.Impact】
4、单选题:
(单选)Adding more carbon, the steel show ___transition temperature ranges.
选项:
A: A.Wider
B: B.Narrower
C: C.Same
D: D.No
答案: 【 A.Wider】
5、单选题:
(单选)The _____ the stress is applied to the material, the less cycle it will endure before its failure.
选项:
A: A.Lower
B: B.Higher
C: C.Quick
D: D.Slow
答案: 【 C.Quick】
6、多选题:
(多选)Which of the below statement are correct?
选项:
A: A.Impact test is a typical static testing method.
B: B.Toughness is a measure of a material’s resistance to brittle fracture when a crack is present.
C: C.A material’s tensile stress tends to gradually increase with the size of the crack increases.
D: D.Fracture toughness is used in design to find allowable flaw size.
答案: 【 B.Toughness is a measure of a material’s resistance to brittle fracture when a crack is present.;
D.Fracture toughness is used in design to find allowable flaw size.】
7、多选题:
(多选)Which statement is correct?
选项:
A: A.The area under which the straight-line portion (elastic region) of the stress-strain curve is modulus of resilience
B: B.Modulus resilience is a measure of the energy per unit volume that the material can absorb without plastic deformation
C: C.Resilience tells you the capacity of a material to adsorb energy when it is deformed elastically and then, upon unloading, to have this energy recovered
D: D.No
答案: 【 A.The area under which the straight-line portion (elastic region) of the stress-strain curve is modulus of resilience;
B.Modulus resilience is a measure of the energy per unit volume that the material can absorb without plastic deformation;
C.Resilience tells you the capacity of a material to adsorb energy when it is deformed elastically and then, upon unloading, to have this energy recovered】
8、多选题:
(多选)Which of the below terms have same meaning?
选项:
A: A.Ultimate Strength
B: B.Tensile Strength
C: C.Yield Strength
D: D.Uniform Strain
答案: 【 A.Ultimate Strength;
B.Tensile Strength】
9、多选题:
(多选)What information you can find in a stress-strain diagram?
选项:
A: A.Elastic modulus
B: B.Yield Point
C: C.Ultimate Strength
D: D.Fracture Point
答案: 【 A.Elastic modulus;
B.Yield Point;
C.Ultimate Strength;
D.Fracture Point】
10、判断题:
判断 The greater the plastic modulus, the stiffer the material.
选项:
A: 正确
B: 错误
答案: 【 错误】
11、判断题:
判断 Ductility involves a elastic deformation.
选项:
A: 正确
B: 错误
答案: 【 错误】
12、判断题:
判断 The more brittle a material is, the more the specimen will neck before fracture.
选项:
A: 正确
B: 错误
答案: 【 错误】
13、判断题:
4 判断All materials have a fatigue limit.
选项:
A: 正确
B: 错误
答案: 【 错误】
14、判断题:
判断High temperature may change a ductile material into brittle.
选项:
A: 正确
B: 错误
答案: 【 错误】
15、判断题:
判断A brittle material has very little plastic deformation.
选项:
A: 正确
B: 错误
答案: 【 正确】
16、判断题:
判断When broken, cross-section image of a ductile material has flake-like structure.
选项:
A: 正确
B: 错误
答案: 【 正确】
17、判断题:
判断A material subjects to a deformation under force and can go back to its original shape. We call the material undergoes an elastic deformation.
选项:
A: 正确
B: 错误
答案: 【 正确】
18、填空题:
疲劳屈服强度/条件屈服强度 汉译英
答案: 【 Offset yield strength##%_YZPRLFH_%##offset yield strength】
19、填空题:
拉伸强度 汉译英
答案: 【 tensile strength##%_YZPRLFH_%##Tensile strength】
20、填空题:
屈服强度 汉译英
答案: 【 yield strength##%_YZPRLFH_%##Yield strength】
21、填空题:
刚度 汉译英
答案: 【 stiffness##%_YZPRLFH_%##Stiffness】
22、填空题:
应力 汉译英
答案: 【 Stress##%_YZPRLFH_%##stress】
23、填空题:
应变 汉译英
答案: 【 Strain##%_YZPRLFH_%##strain】
24、填空题:
Tension英译汉拉伸
答案: 【 拉伸】
25、填空题:
Compression英译汉
答案: 【 压缩】
26、填空题:
弹性形变(单) 汉译英
答案: 【 elastic deformation##%_YZPRLFH_%##Elastic deformation】
27、填空题:
plastic deformation 英译汉
答案: 【 塑性形变】
28、填空题:
elastic modulus英译汉
答案: 【 弹性模量】
29、填空题:
回弹性 汉译英
答案: 【 Resilience##%_YZPRLFH_%##resilience】
30、填空题:
颈缩现象 汉译英
答案: 【 Necking phenomena##%_YZPRLFH_%##Necking phenomenon##%_YZPRLFH_%##necking phenomenon##%_YZPRLFH_%##necking phenomena】
31、填空题:
伸长率 汉译英
答案: 【 Elongation##%_YZPRLFH_%##elongation】
32、填空题:
脆性的 汉译英
答案: 【 brittle##%_YZPRLFH_%##Brittle】
33、填空题:
填空(2分) Ductility 英译汉
答案: 【 延展性】
34、填空题:
Fatigue failure 英译汉
答案: 【 疲劳失效】
35、填空题:
疲劳强度 汉译英
答案: 【 Fatigue strength##%_YZPRLFH_%##fatigue strength】
36、填空题:
Cracks and flaws英译汉
答案: 【 断裂与缺陷##%_YZPRLFH_%##裂缝与缺陷##%_YZPRLFH_%##断裂和缺陷##%_YZPRLFH_%##裂缝和缺陷】
37、填空题:
Notched specimen英译汉
答案: 【 缺口样条##%_YZPRLFH_%##缺口式样##%_YZPRLFH_%##缺口试样】
38、填空题:
韧性 汉译英
答案: 【 Toughness##%_YZPRLFH_%##toughness】
39、填空题:
断裂韧性 汉译英
答案: 【 fracture toughness##%_YZPRLFH_%##Fracture toughness】
40、填空题:
un-notched samples
答案: 【 非缺口样条##%_YZPRLFH_%##非缺口试样】
0310课间挑战答题英汉互译10题
1、填空题:
(英译汉) phonons
答案: 【 声子】
2、填空题:
(汉译英)导热性
答案: 【 thermal conductivity##%_YZPRLFH_%##Thermal conductivity】
3、填空题:
(汉译英)比热
答案: 【 specific heat##%_YZPRLFH_%##Specific heat】
4、填空题:
(英译汉)CTE Coefficient of thermal expansion
答案: 【 热膨胀系数】
5、填空题:
(汉译英)蠕变
答案: 【 Creep##%_YZPRLFH_%##creep】
6、填空题:
(英译汉)Creep forming
答案: 【 蠕变成型】
7、填空题:
(汉译英)硬度
答案: 【 Hardness##%_YZPRLFH_%##Hardness】
8、填空题:
(英译汉)Spring back
答案: 【 回弹##%_YZPRLFH_%##回弹性】
9、填空题:
(汉译英)热容量
答案: 【 Thermal capacity##%_YZPRLFH_%##thermal capacity】
10、填空题:
(汉译英)热膨胀
答案: 【 Thermal expansion##%_YZPRLFH_%##thermal expansion】
Module3Quiz-
1、单选题:
Which statement is correct?
选项:
A: All materials have a pronounced or obviously yield point.
B: Some materials do not have clear yield point.
C: Grey cast iron does not have yield point
D: None of above is correct
答案: 【 Some materials do not have clear yield point.】
2、单选题:
_____is defined as a sudden application of a load confined to a localized area of a material.
选项:
A: Stretch
B: Compress
C: Punch
D: Impact
答案: 【 Impact】
3、单选题:
After a certain amount of time has elapsed under constant load, the creep strain (plastic deformation) will ______.
选项:
A: decrease
B: increase
C: not change
D: be any possible value
答案: 【 increase】
4、单选题:
The ______ the heat capacity, the _____ the amount of heat needed to produce a temperature change.
选项:
A: larger, greater
B: larger, smaller
C: lower, greater
D: None of above is correct
答案: 【 larger, greater】
5、多选题:
What are correct for describing off-set yield strength?
选项:
A: Off-set yield strength is the stress corresponding to the plastic limit.
B: It is the lowest stress at which a limited amount of plastic deformation occurs.
C: Off-set yield strength is the stress corresponding to the elastic limit.
D: If a plastic strain of 0.002 in./in. can be tolerated, the stress that produces this strain is designated as the yield strength of the material at 0.2% offset.
答案: 【 It is the lowest stress at which a limited amount of plastic deformation occurs.;
If a plastic strain of 0.002 in./in. can be tolerated, the stress that produces this strain is designated as the yield strength of the material at 0.2% offset.】
6、多选题:
Which statements are correct?
选项:
A: The area under which the straight-line portion (elastic region) of the stress-strain curve is modulus of resilience.
B: Modulus resilience is a measure of the energy per unit volume that the material can absorb without plastic deformation.
C: Resilience tells you the capacity of a material to adsorb energy when it is deformed elastically and then, upon unloading, to have this energy recovered.
D: None of the above statement is correct.
答案: 【 The area under which the straight-line portion (elastic region) of the stress-strain curve is modulus of resilience.;
Modulus resilience is a measure of the energy per unit volume that the material can absorb without plastic deformation.;
Resilience tells you the capacity of a material to adsorb energy when it is deformed elastically and then, upon unloading, to have this energy recovered.】
7、多选题:
Which of the following statements are correct?
选项:
A: The greater the modulus, the stiffer the material.
B: The stiffer the material, the higher the resistance of the material to deformation.
C: The higher the magnitude of elastic modulus, the higher the magnitude of the inter-atomic bonding forces in a material.
D: The higher the magnitude of elastic modulus, the lower the magnitude of the intermolecular bonding forces in a material.
答案: 【 The greater the modulus, the stiffer the material.;
The stiffer the material, the higher the resistance of the material to deformation.;
The higher the magnitude of elastic modulus, the higher the magnitude of the inter-atomic bonding forces in a material.】
8、多选题:
Which of the experiments are used for measuring toughness?
选项:
A: Charpy impact test
B: Izod impact test
C: Knoop Hardness
D: None of the above is correct
答案: 【 Charpy impact test;
Izod impact test】
9、多选题:
What are the methods of applying load in a fatigue test?
选项:
A: Constant Stress
B: Temporary Loading
C: Repetitious Stress
D: Reversal Stress
答案: 【 Repetitious Stress;
Reversal Stress】
10、多选题:
What are the typical methods for penetration testing of hardness?
选项:
A: Brinell Hardness
B: Vickers Hardness
C: Rockwell Hardness
D: Mohs Hardness
答案: 【 Brinell Hardness;
Vickers Hardness;
Rockwell Hardness】
11、判断题:
Ductile materials can stand large plastic deformation without fracture.
选项:
A: 正确
B: 错误
答案: 【 正确】
12、判断题:
Materials with high elastic modulus are typically soft.
选项:
A: 正确
B: 错误
答案: 【 错误】
13、判断题:
Toughness is the ability or capacity of a material to absorb energy during elastic deformation.
选项:
A: 正确
B: 错误
答案: 【 错误】
14、判断题:
A ductile material will be ductile forever.
选项:
A: 正确
B: 错误
答案: 【 错误】
15、判断题:
The maximum stress that can be sustained for a specified number of cycles without fracture is called fatigue limit.
选项:
A: 正确
B: 错误
答案: 【 错误】
16、判断题:
Many nonferrous metals, such as aluminum and other non-ferrous metals exhibit no fatigue limit.
选项:
A: 正确
B: 错误
答案: 【 正确】
17、判断题:
Creep happens at specific temperatures.
选项:
A: 正确
B: 错误
答案: 【 错误】
18、判断题:
Higher stress or higher temperature reduces the rupture time and decreases the creep rate.
选项:
A: 正确
B: 错误
答案: 【 错误】
19、判断题:
A material with high bonding energy has low thermal expansion coefficient.
选项:
A: 正确
B: 错误
答案: 【 正确】
Video10ThermalExpansion
1、判断题:
Material with high bonding energy has low thermal expansion coefficient.
选项:
A: 正确
B: 错误
答案: 【 正确】
Video11ThermalConductivity
1、判断题:
Polymers transmit heat mainly through free electrons.
选项:
A: 正确
B: 错误
答案: 【 错误】
Video1StressandStrain
1、单选题:
Which equation describes the Engineering strain?
选项:
A: ![]()
B: ![]()
C: ![]()
D: ![]()
答案: 【 ![]()
