焊接结构试题及参考答案

c正火 淬火和退火 d回火 淬火和退火

201. Which of the following is not considered to be essential knowledge for a welding

inspector ? (下列哪项不是焊接检验员的主要知识？) a. nondestructive testing (无损检测) b. welding symbols (焊接符号) c. welding design (焊接设计) d. welding processes (焊接方法) e. destructive testing (破坏性试验)

202. ( D ) Inclusions in a weld will appear on a radiograph as (焊缝夹杂和夹渣在射线片上上显示为) a. a dark spot (暗点) b. a light spot (亮点)

c. a generalized gray area of varying contrast (不明显的灰色区域)

d. either a dark or light spot or area depending on the relative absorption ration of the part material and the inclusion material (按夹杂物不同的相对射线吸收率显示为亮点或暗 点)

e. none of the above (以上均不对)

203. ( C ) Backing strips or bars should be removed from all welds：(衬垫应从所有焊缝上去除) a. Always (总是) b. Never (从不)

c. Optional (可选择)

204. ( E ) Prior to starting the job assignment , the welding inspector should determine： (在开始指定的工作前，焊接检验员应先确定：)

a. what code , standard, or specification applies (适用的法规，标准和规程) b. when inspections should be conducted (何时开始检验)

c. what additional tests (inspections) are needed (什么是附加的试验和检验) d. where records are maintained (记录保存在何处) e. all of the above (以上全对)

205. ( E ) The required spot weld size can be shown as： (点焊尺寸可表示为) a. a dimension to the right of the symbol (焊接符号右侧的尺寸) b. a dimension of the required nugget diameter (熔核尺寸) c. a value for the required shear strength (要求的剪切强度值) d. a and b above (上述a 和b) e. b and c above (上述b 和c)

206. ( B ) For the welding inspector, what are the most important means of gaining the cooperation and respect of fellow coworkers：(作为焊接检验员，什么是获得同事合作和尊重的最主要 方法：)

a. ability to be trained (学习能力) b. professional attitude (专业的态度)

c. ability to complete and maintain inspection records (完成和保持检验记录的能力)

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d. good physical condition (良好的身体状况)

e. ability to interpret drawings and specifications (解释图纸和标准的能力)

207. ( D ) Groove welds make without backup strip, with complete penetration must have： (无衬垫全焊透坡口焊缝必须：)

a. The root of joint completely filled with weld metal (焊缝根部填满焊缝金属)

b. Root of first pass removed to sound metal before welding second side (在焊接另一面前， 去除根部第一道焊缝，直至露出完好的焊缝金属)

c. Use new electrode at start of weld (开始焊接时用新焊条施焊) d. a or b above (以上a 和b)

208. ( D ) The diagram above shows：(下图表示那种焊接设备) a. Shielded metal arc welding (手工电弧焊) b. Plasma arc welding (等离子弧焊) c. Submerged arc welding (埋弧焊) d. Stud welding (螺柱焊)

e. Electrogas welding (电渣焊)

209. ( B ) The symbol below describes what type of weld ? (以下符号表示那种焊缝？) a. staggered intermittent fillet weld (交叉间断角焊缝) b. chain intermittent fillet weld (对称间断焊缝) c. segmentad fillet weld (分段角焊缝) d. intermittent fillet weld (间断角焊缝) e. none of the above (以上均不对)

210. ( C ) Which of the welding symbols above correctly represents the welded joint shown below ?

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(上面的焊接符号哪个能正确代表下面的焊接接头) 1) A 2) B 3) C 4) D

5) None of these (以上均不对)

211. ( B ) In E7018 electrode the E designates：(E7018 焊条中的E 表示) a. engineered (工程的) b. electrode (焊条) c. electricity (电)

212. ( A ) What does the fourth digit (8)of an E7018 electrode indicate： (E7018 焊条中的第4 位数字(8)表示：)

A、The polarity and the type of coating (药皮的极性) B、The strength of the weld material (焊接材料的强度)

C、The type of material used in the electrode (焊条的材料类型)

213. ( C ) Which of the following electrodes have low hydrogen coating ? (下述哪中焊条是碱性药皮) A、E7024 B、E6010 C、E7016 D、E6011

214. ( C ) “B” above refers to which of the following ? (下图“B”表示：) A、back reflection (底波) B、front surface (前表面) C、defect (缺陷)

D、shear wave (剪切波)

E、none of the above (以上均不对)

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215 ( A ) “C” above refers to which of the following ? (上图“C”表示) A、back reflection (底波) B、front surface (前表面) C、defect (缺陷)

D、shear wave (剪切波)

E、none of the above (以上均不对)

216. ( B ) “A” above refers to which of the following ? (“A”表示) A、Back reflection (底波) B、Initial pulse (始波) C、Defect (缺陷)

D、Shear wave (剪切波)

E、None of the above (以上均不对)

217. ( D ) What type of qualification test is this ? (这是什么试验？) A、Tension test (拉伸试验)

B、Root bend test (根部弯曲试验) C、Side bend test (侧弯试验)

D、Fillet weld break test (角焊缝断裂试验) E、Compression test (压断试验)

218. ( D ) In reference to the below drawing , a magnetic field as shown will detect which of the following defects ? (参照下图，磁场将用于探测下列那种缺陷：) A、Longitudial crack (纵向裂纹) B、Transverse crack (横向裂纹) C、Crack at 45° (45 度裂纹) D、B and C above (以上B 和C) E、None of the above (以上均不对)

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