ASME的无损检测Ⅱ级人员考题和答案(pt).pdf

渗透II级基础理论试卷
PTLevelIIGeneralExamination

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1.选择液体渗透试验方法时，通常要考虑下面列出的哪些零件特性？(D)
A)零件上可能发生的不连续性的类型和尺寸B)零件的用途
C)零件表面粗糙度D)以上均需考虑
Whichofthetestpartcharacteristicslistedbelowarenormallyconsideredbeforethespecific
liquidpenetranttestmethodisselected?
A)thekindandsizeofdiscontinuitiesmostlikelytooccur
B)theintendedapplicationforthepart
C)thesurfacefinishofthepart
C)alloftheabove

2.渗透剂的好坏是由下列哪一种物理性能单独决定的？(D)
A)粘度B)表面张力C)润湿能力
D)渗透剂的好坏不是由任何一种性能单独决定的
Whichofthefollowingphysicalproperties,morethananyother,determineswhatmakesa
materialagoodpenetrant?
A)viscosityB)surfacetensionC)wettingability
D)noonesinglepropertydeterminesifamaterialwillorwillnotbeagoodpenetrant.

3.下列哪种性能对渗透剂渗入表面缺陷的速度影响最大？(C)
A)密度B)表面张力和润湿能力C)粘度D)相对重量
Thespeedwithwhichapenetrantpenetratesasurfaceflawisinfluencedtothegreatestextentby
whichofthefollowingproperties?
A)densityB)surfacetensinandwettingability
C)viscosityD)relativeweight

4.下面关于汞弧型黑光灯操作的哪种说法是不正确的？(C)
A)开灯后，需要预热５分钟，使灯泡达到最大输出
B)如果电源电压降到90伏以下，黑光灯可能熄灭
C)电源电压变化到120伏以上，对灯泡无影响或影响很小
D)如果电弧因某种原因熄灭，在开关断开后，再次开启开关，灯泡不会立即亮
Whichofthestatementsbelowconcerningtheoperationoftheblacklightbulbsofthemercuryarc
typeisnottrue?
A)ittakesabout5minutesforthebulbtowarmuptoitsfulloutputwhenfirstturnedon
B)thelampmaygooutifthelinevoltagedropsbelow90volts
C)linevoltagevariationsabove120voltswillhavelittleornoeffectonthebulb
D)ifforanyreasonthearcisextinguished,thebulbwillnotimmediatelyrespondifthelampis
turnedonrightafterithasbeenturnedoff

5.下列哪种类型的缺陷不能用渗透检测方法发现？(B)
A)表面分层B)内部锻造裂纹C)表面裂纹D)表面折叠
Whichofthefollowingtypesofdiscontinuitieswillnotbedetectedbytheliquidpenetranttestmethod?
A)surfacelaminationsB)internalforgingburstsC)surfacecracksD)surfacelaps

6.“不相关显示”是用来描述某种类型的渗透试验显示的，下列哪种显示是典型的“不相关显示”？(A)
A)由零件形状或零件结构引起的显示B)非磁性显示
C)多个显示D)非线性显示
Theterm"non-relevantindication"isusedtodescribecertaintypesofpenetranttestingindications.
Whichofthefollowingwouldbeatypical"non-relevantindication"?
A)indicationsduetopartgeometryo