大学MOOC 材料科学概论(太原理工大学)1450309366 最新慕课完整章节测试答案
Module1Introduction
文章目录
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
B: Biodegradeble
C: Renewable
D: None of the above
答案: 【 Recyclable】
5、单选题：
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】
6、单选题：
The four components involved in the discipline of materials science and engineering
include _____.
选项：
A: processing, structure, properties, and performance
B: structure, nature, processing and performance
C: synthesis, composition, properties and application
D: synthesis, structure, properties and application
答案: 【 processing, structure, properties, and performance】
7、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】
8、多选题：
According to American Society for Testing, 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, machines,
devices, products, and systems】
9、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】
10、判断题：
Disposal/recycle is the key stage to ensure the last stage to become the first stage of the materials cycle.
选项：
A: 正确
B: 错误
答案: 【 正确】
11、判断题：
The structure of a material depends on how it is processed, and a material's performance is a function of its properties.
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
Module2Quiz
1、单选题：
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、单选题：
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、单选题：
Amorphous solids have only order in the arrangement of constituent particles
选项：
A: long-range
B: short-range
C: medium-range
D: None of the above
答案: 【 short-range】
4、单选题：
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】
5、单选题：
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】
6、单选题：
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: None of the above
答案: 【 Interstitial】
7、单选题：
When impurity atoms replace the host atoms, it is called a/an solid solution
选项：
A: Substitutional
B: Vacancy
C: Interstitial
D: None of the avove
答案: 【 Substitutional】
8、单选题：
Which one is the curve that represents the temperatures at which solidification begins?
选项：
A: Solidus
B: Liquidus
C: Cooling curve
D: Heating curve
答案: 【 Liquidus】
9、判断题：
Primary bonding is the forces within a molecule, while secondary bonding is the forces between molecules
选项：
A: 正确
B: 错误
答案: 【 正确】
10、判断题：
In Polymers, bonds inside the long chain molecules are secondary bonding, bonds among the chains are covalent bonding
选项：
A: 正确
B: 错误
答案: 【 错误】
11、判断题：
Long range order means the orderly arrangement of atoms extends throughout the entire material.
选项：
A: 正确
B: 错误
答案: 【 正确】
12、判断题：
If you cool molten metal at extremely rapid rate, amorphous metal can form
选项：
A: 正确
B: 错误
答案: 【 正确】
13、判断题：
Both Face-centered cubic and Hexagonal Close-packed are close-packed crystal structures
选项：
A: 正确
B: 错误
答案: 【 正确】
14、判断题：
Because of allotropy, steel can be produced from iron
选项：
A: 正确
B: 错误
答案: 【 正确】
15、判断题：
The existence of point defects，impurity atoms, dislocations，grain boundary may all hinder the dislocation movement, hence weaken the materials
选项：
A: 正确
B: 错误
答案: 【 错误】
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】
Video6PolymorphismandAllotropy
1、判断题：
Any crystal structure changes in a material produces different properties.
选项：
A: 正确
B: 错误
答案: 【 正确】
2、判断题：
Tin pest occurs because of an allotropic change of Tin below 13.2oC
选项：
A: 正确
B: 错误
答案: 【 正确】
Video7PointDefectsandCrystalImpurites
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】
Module3PropertiesofMaterials
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 asthe 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 asthe 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、多选题：
For electrochemical corrosion, the cell consists of four basic components: , , , and an external conducting connection between anode and cathode
选项：
A: Ions
B: Anode
C: Cathode
D: Electrolyte
答案: 【 Anode;
Cathode;
Electrolyte】
12、判断题：
Ductile materials can stand large plastic deformation without fracture.
选项：
A: 正确
B: 错误
答案: 【 正确】
13、判断题：
Materials with high elastic modulus are typically soft.
选项：
A: 正确
B: 错误
答案: 【 错误】
14、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】
15、判断题：
A ductile material will be ductile forever.
选项：
A: 正确
B: 错误
答案: 【 错误】
16、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】
17、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】
18、判断题：
Creep happens at specific temperatures.
选项：
A: 正确
B: 错误
答案: 【 错误】
19、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】
20、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: 【 】
2、多选题：
What information you can find in a stress-strain diagram?
选项：
A: Elastic modulus
B: Yield Point
C: Ultimate Strength
D: Fracture Point
答案: 【 Elastic modulus;
Yield Point;
Ultimate Strength;
Fracture Point】
Video2ElasticandPlasticDeformation
1、多选题：
Which of the below terms have same meaning?
选项：
A: Ultimate Strength
B: Tensile Strength
C: Yield Strength
D: Uniform Strain
答案: 【 Ultimate Strength;
Tensile Strength】
2、判断题：
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】
Video3Ductility
1、单选题：
In a stress-strain diagram, which region refers to ductile property?
选项：
A: Elastic Region
B: Plastic Region
C: Elastic and Plastic Region
D: No
答案: 【 Elastic and Plastic Region】
2、多选题：
Which statement is 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: No
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】
Video4Toughness
1、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】
2、多选题：
Which of the below statement are correct?
选项：
A: Impact test is a typical static testing method.
B: Toughness is a measure of a material’s resistance to brittle fracture when a crack is present.
C: A material’s tensile stress tends to gradually increase with the size of the crack increases.
D: Fracture toughness is used in design to find allowable flaw size.
答案: 【 Toughness is a measure of a material’s resistance to brittle fracture when a crack is present.;
Fracture toughness is used in design to find allowable flaw size.】