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外管套阀门伸长杆

时间:2012-07-05 20:57:57 来源:jzsbys.com 作者:夏雨雨 点击:
aaa2aaaaaa2aaa45.aaa2aaaACaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa46.aaa2aaaABCDaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa47.aaa2aaaACEaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa48.aaa2aaaAB
49.aaa2aaaACDEaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa50.aaa2aaaACDaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa51.aaa2aaaABCDaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa52.aaa2aaaBCDEaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa53.aaa2aaaBCDaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa54.aaa2aaaABDE
55.aaa2aaaADEaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa56.aaa2aaaABCEaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa57.aaa2aaaABCEaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa58.aaa2aaaDEaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa59.aaa2aaaBDaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa60.aaa2aaaAB
61.aaa2aaaACaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa62.aaa2aaaABCDaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa63.aaa2aaaBCDaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa64.aaa2aaaABCaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa65.aaa2aaaACDEaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa66.aaa2aaaABCD
67.aaa2aaaACDaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa68.aaa2aaaABCDaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa69.aaa2aaaABDEaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa70.aaa2aaaABCEaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa71.aaa2aaaACDEaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa72.aaa2aaaBDE
73.aaa2aaaACDEaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa74.aaa2aaaABCEaaa2aaaaaa2aaaaaa2aaaaaa2aaaaaa2aaa75.aaa2aaaBCDE
第二章aaa2aaaaaa2aaa工业管道工程
一?单项选择题(每题1分?每题的备选答案中只有一个最符合题意,请在答题纸卡上涂黑其相应的编号)
1.aaa2aaa输送各种液体与气体的管路,一般采用(aaa2aaaaaa2aaa)表示?Paaa2aaa120aaa2aaaH↓2
A.aaa2aaa文字B.aaa2aaa符号C.aaa2aaa实线
D.aaa2aaa虚线
2.aaa2aaa为了区别各种不同种类的管路,在线的中间须注上(aaa2aaaaaa2aaa)的规定符号?Paaa2aaa120aaa2aaaH↓2
A.aaa2aaa汉语拼音字母B.aaa2aaa阿拉伯数字
C.aaa2aaa数字序号D.aaa2aaa英语字母
3.aaa2aaa下列关于蒸汽伴热管的描述中不合理的是(aaa2aaaaaa2aaa)?Paaa2aaa123aaa2aaaH↑12
A.aaa2aaa蒸汽伴热管是伴随物料输送管一起敷设的蒸汽管
B.aaa2aaa常用的伴热管直径都比较小,一般在20mm以上,常用的是单根和双根,特殊的情况也有采用多根
C.aaa2aaa蒸汽伴热管的作用与加热套类似,都是起加热保温作用
D.aaa2aaa为了防止蒸汽伴管的泄露,一般设计要求采用无缝钢管,伴热管所用的蒸汽压力,一般不超过1.aaa2aaa0mPa
4.aaa2aaa伴热管都设在主管的下半周,并在主管与伴管的外皮之间加有(aaa2aaaaaa2aaa),以防止主管局部过热,达到加热程序均匀的效果?Paaa2aaa123aaa2aaaH↑8
A.aaa2aaa绝热管道B.aaa2aaa旁通管
C.aaa2aaa隔热石棉板条垫层
D.aaa2aaa隔热板
5.aaa2aaa全加热套管是使(aaa2aaaaaa2aaa)始终处于有外套管加热保温的工作状态?Paaa2aaa123aaa2aaaH↑17
A.aaa2aaa内管(包括直管和管件)
B.aaa2aaa管套C.aaa2aaa管顶D.aaa2aaa外管
6.aaa2aaa加热套管是为了防止内管所输送的生产介质,因输送生产过程中(aaa2aaaaaa2aaa)而凝结,所以在内管与外管之间接通蒸汽,达到加热保温的目的?Paaa2aaa123aaa2aaaH↓18
A.aaa2aaa套管温度升高B.aaa2aaa振捣成型
C.aaa2aaa湿度增加D.aaa2aaa温度下降
7.aaa2aaa对输送(aaa2aaaaaa2aaa)介质的管道,应注意选择合适的输送速度,管道受阻部件及转弯处因做成便于介质流动的形状,并适当加厚管壁或敷设耐磨材料?Paaa2aaa123aaa2aaaH↓9
A.aaa2aaa安全性高的材料B.aaa2aaa粉粒状固体物料
C.aaa2aaa介质直径高的D.aaa2aaa无缝钢管
8.aaa2aaa波形补偿器适用于公称压力0.aaa2aaa6兆帕以下的低压道上,公称直径要大于(aaa2aaaaaa2aaa)?Paaa2aaa125aaa2aaaH↓13
A.aaa2aaa100mmB.aaa2aaa120mm
C.aaa2aaa150mmD.aaa2aaa18mm
9.aaa2aaa(aaa2aaaaaa2aaa),多安装在有易燃易爆气体的设备及管道的排空管道上?Paaa2aaa124aaa2aaaH↓9
A.aaa2aaa阻火器B.aaa2aaa消火栓
C.aaa2aaa过滤器D.aaa2aaa过滤网
10.aaa2aaa钢漏斗,是管道接受排放流体的部件,有直边型和内卷变型两种,直边型可在现场加工制作,内卷型的一般是(aaa2aaaaaa2aaa)?Paaa2aaa125aaa2aaaH↓6
A.aaa2aaa成品件B.aaa2aaa半成品
C.aaa2aaa套管D.aaa2aaa钢管
11.aaa2aaa钢漏斗通常都是A3F钢板制作,常用接管规格为(aaa2aaaaaa2aaa)?Paaa2aaa125aaa2aaaH↓7
A.aaa2aaa15~100mm
B.aaa2aaa20~250mm
C.aaa2aaa25~300mm
D.aaa2aaa50~500mm
12.aaa2aaa阀门操作装置,包括(aaa2aaaaaa2aaa),是为了在适当的位置,能操作比较远的阀门而设置的一种装置,如在楼上或钢平台上操作下面管道上的阀门,或者是操作隔墙另一侧的阀门?Paaa2aaa125aaa2aaaH↓2
A.aaa2aaa外管套B.aaa2aaa阀门伸长杆
C.aaa2aaa锚杆D.aaa2aaa钢筋混凝土管
13.aaa2aaa阀门操作装置重量,视(aaa2aaaaaa2aaa)而定,所操作阀门公称直径范围为25~400mm?Paaa2aaa125aaa2aaaH↓3
A.aaa2aaa阻力大小B.aaa2aaa空间所占位置
C.aaa2aaa阀门直径的大小和距离远近
D.aaa2aaa现场加工制作
14.aaa2aaa填料式补偿器,也称套管式补偿器,是利用外管套与内管,在两管空隙之间用填料密封,内管可以随着(aaa2aaaaaa2aaa)变化自由活动,从而起到补偿作用?Paaa2aaa125aaa2aaaH↓15
A.aaa2aaa位移B.aaa2aaa湿度C.aaa2aaa距离
D.aaa2aaa温度
15.aaa2aaa管道支?吊架用以(aaa2aaaaaa2aaa)管道?Paaa2aaa125aaa2aaaH↑6
A.aaa2aaa稳定B.aaa2aaa支承和固定
C.aaa2aaa保温D.aaa2aaa较好地操作
16.aaa2aaa每种支吊架又有多种形式?支架的布置和类型应满足设计的要求,并应注意减少(aaa2aaaaaa2aaa)?Paaa2aaa125aaa2aaaH↑5
A.aaa2aaa管路振动B.aaa2aaa管线组合
C.aaa2aaa支架弯曲D.aaa2aaa吊架移位
17.aaa2aaa工作温度低于(aaa2aaaaaa2aaa)的钢管应有低温冲击韧性试验结果,否则应按有关规定进行试验,其指标不应低于规定值的下限?Paaa2aaa127aaa2aaaH↑10
A.aaa2aaaaaa3aaa10℃B.aaa2aaaaaa3aaa15℃
C.aaa2aaaaaa3aaa20℃D.aaa2aaaaaa3aaa25℃
18.aaa2aaa合金管道宜采用(aaa2aaaaaa2aaa)切断,高压合金钢管切断后的管段上无钢号者应重新打上原有钢号?Paaa2aaa127aaa2aaaH↑8
A.aaa2aaa切割机B.aaa2aaa机械方法
C.aaa2aaa手工砂轮机D.aaa2aaa等离子切割机
19.aaa2aaa合金钢管安装时不应焊有临时支撑物,如必须进行,其焊接(aaa2aaaaaa2aaa)应与正式焊接相同?Paaa2aaa127aaa2aaaH↑7
A.aaa2aaa工艺B.aaa2aaa要求C.aaa2aaa方式
D.aaa2aaa功能
20.aaa2aaa管口组对卡具应采用硬度低于(aaa2aaaaaa2aaa)的不锈钢材料制作,最好采用螺栓连接形式?Paaa2aaa128aaa2aaaH↓1
A.aaa2aaa混凝土主B.aaa2aaa钢板
C.aaa2aaa合金管D.aaa2aaa管材
21.aaa2aaa下列说法中错误的一项是(aaa2aaaaaa2aaa)?Paaa2aaa128aaa2aaaH↓3
A.aaa2aaa不锈钢管焊接一般可采用手工电弧焊及氩弧焊
B.aaa2aaa为确保内壁焊接成型平整光滑,薄壁管采用全钨极氩弧焊,壁厚大于5mm时,应采用氩电联焊;焊接材料通常应与母材化学成分相近,且应保证焊缝金属性能和晶间腐蚀性能不低于母材
C.aaa2aaa焊接后应对焊缝及附近表面进行酸洗及钝化处理
D.aaa2aaa酸洗的目的是除去氧化皮,因焊接受热后都会产生一层氧化皮,将直接影响管道的耐腐蚀性能;钝化的目的是为了使不锈钢表面产生一层无色致密的氧化薄膜,起耐腐蚀作用
22.aaa2aaa自应力水泥接口在完成接口工作(aaa2aaaaaa2aaa)内不准在接口上浇水,使接口保持湿润状态,养护时间为2~3d?Paaa2aaa129aaa2aaaH↓5
A.aaa2aaa1hB.aaa2aaa2hC.aaa2aaa3h
D.aaa2aaa4h
23.aaa2aaa焊管宜采用冲砂热弯,加热温度约为(aaa2aaaaaa2aaa),待管壁呈暗红色时取出进行煨制,煨制过程中不得浇水,应使其自然冷却?Paaa2aaa130aaa2aaaH↓1
A.aaa2aaa100℃B.aaa2aaa150℃
C.aaa2aaa300℃D.aaa2aaa400℃
24.aaa2aaa承重压力较高的管道,可选用粘接,外口再用焊条焊接补强,焊接一般采用(aaa2aaaaaa2aaa)?Paaa2aaa131aaa2aaaH↑14
A.aaa2aaa热风焊B.aaa2aaa冷焊
C.aaa2aaa法兰锚固D.aaa2aaa夹套焊接
25.aaa2aaa高压弯管的夹套安装工作,应在高压弯管弯曲后再次进行(aaa2aaaaaa2aaa),合格后进行?Paaa2aaa131aaa2aaaH↑4
A.aaa2aaa介质安装B.aaa2aaa无损探伤
C.aaa2aaa管道敷设D.aaa2aaa管子转动
26.aaa2aaa合金阀门应逐个对壳体进行光谱分析,复查材质?合金钢及高压阀门每批取(aaa2aaaaaa2aaa)且不少于1个,进行解体检查内部零件,如有不合格则需逐个检查?Paaa2aaa135aaa2aaaH↑5
A.aaa2aaa10%B.aaa2aaa15%
C.aaa2aaa18%D.aaa2aaa25%
27.aaa2aaa高?中压和有毒?剧毒及甲?乙类火灾危险物质的阀门均应逐个进行强度和严密性实验?120℃的石油蒸馏产品的阀门,应有(aaa2aaaaaa2aaa)进行试验?Paaa2aaa135aaa2aaaH↓9
A.aaa2aaa脱脂阀门(责任编辑:夏雨雨)
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