2020 无损检测技术(英)（范文茹）(中国民航大学) 最新满分章节测试答案

文章目录[隐藏]

第二章渗透检测测试
第三章磁粉检测第三章测试
第四章超声检测第四章测试
第五章涡流检测第五章测试
第七章红外热成像检测第6、7章测试题

本答案对应课程为:点我自动跳转查看
本课程起止时间为:2020-02-18到2020-07-15
本篇答案更新状态:已完结

第二章渗透检测测试

1、问题:Which of the following is the least sensitive developer?
选项：
A:Dry powder
B:Aqueous soluble
C:Aqueous suspendable
D:Non-aqueous wet
答案: 【Dry powder】

2、问题:Penetrants which have an emulsifier already in them referred to as?
选项：
A:Post emulsifiable
B:Solvent removable
C:Water washable
D:Lipophilic penetrant
答案: 【Water washable】

3、问题:A good penetrant requires a surface tension which is?
选项：
A:High
B:Low
C:Fast
D:Slow
答案: 【Low】

4、问题:Which penetrant method is considered to be the most sensitive?
选项：
A:Visible solvent removable
B:Fluorescent water washable
C:Visible post emulsifiable
D:Fluorescent post emulsifiable
答案: 【Fluorescent post emulsifiable】

5、问题:Which of the following is a method of applying penetrant?
选项：
A:Spraying
B:Dipping
C:Brushing
D:All of the above are methods
答案: 【All of the above are methods】

6、问题:The time which the penetrant is allowed to soak on the surface of a component is commonly referred to as the?
选项：
A:Development time
B:Emulsification time
C:Dwell time
D:Inspection time
答案: 【Dwell time】

7、问题:What is the benefit of using visible dye penetrant over a fluorescent penetrant?
选项：
A:Easier to remove the excess background
B:Greater sensitivity is obtained
C:No special lighting is required
D:All the above are benefits
答案: 【No special lighting is required 】

8、问题:Wettability of a liquid penetrant is controlled by which of the following factors?
选项：
A:Cosine of the contact angle
B:Viscosity
C:Surface tension
D:Both cosine of the contact angle and surface tension
答案: 【Both cosine of the contact angle and surface tension】

9、问题:The contact angle for most commercial liquid penetrants has which of the values listed below?
选项：
A:Less than 5 degrees
B:Less than 10 degrees
C:Only needs to be less than 89 degrees
D:Only needs to be less than 89 degrees
答案: 【Less than 5 degrees 】

第三章磁粉检测第三章测试

1、问题:Magnetic particle inspection is a means for detecting discontinuities at or near the surface in_materials?
选项：
A:Metallic
B:Nonconductive
C:Ceramic
D:Ferromagnetic
答案: 【Ferromagnetic】

2、问题:The magnetic flux lines which flow through a bar magnet form closed loops but can be broken by which of the following?
选项：
A:A change in permeability
B:A non metallic inclusion
C:A crack
D:None of the above will cause a break in a flux line
答案: 【None of the above will cause a break in a flux line】

3、问题:A fault in magnetised material will best be detected when it lies in which of the following directions?
选项：
A:Parallel to the magnetic field
B:Perpendicular to the magnetising force
C:Parrallel to the magnetising current
D:Both perpendicular to the magnetic field and parrallel to the magnetising current
答案: 【Both perpendicular to the magnetic field and parrallel to the magnetising current】

4、问题:Non metallic inclusions can also be found with magnetic particle inspection as well as cracks. This is due to a change in what property of the inclusion in relation to the parent materials?
选项：
A:Conductivity
B:Flux leakage
C:Hysteresis
D:Permeability
答案: 【Permeability】

5、问题:Flow detection is best achieved when the magnetic flux is?
选项：
A:Parallel to the flaw major dimension
B:At 30 degrees to the flaw major dimension
C:At 90 degrees to the flaw major dimension
D:At 60 degrees to the flaw major detection
答案: 【At 90 degrees to the flaw major dimension】

6、问题:Magnetic field strength in a long coil is determined by?
选项：
A:Applied current strength
B:Number of turns in the coil
C:Coil diameter
D:Applied current strength and number of turns in the coil
E:All of the above
答案: 【Applied current strength and number of turns in the coil】

7、问题:How may a ferromagnetic material be demagnetised?
选项：
A:Using an AC Coil
B:Heating above the curie temperature
C:Reversing DC Coils
D:All the above
答案: 【All the above】

8、问题:A residual magnetic field is always?
选项：
A:Stronger than the magnetic field producing it
B:Weaker than the magnetisiing field producing it
C:Equal to the magnetising field producing it
D:None of the above
答案: 【Weaker than the magnetisiing field producing it】