相关试题
【单选题】
[189]裂解气压缩机防喘振控制阀中，温度较低的阀位号是___。
A. FZV-20028A
B. FZV-20028B
C. FZV-20001
D. FZV-20005
【单选题】
[190]不合格乙烯返回到压缩机___段出口。
【单选题】
[191] 碱洗塔进料温度通过调节阀___调节E-206的（ ）流量来控制。
A. FV-20012 盘油
B. FV-20012 急冷水
C. FV-20011 盘油
D. FV-20011 急冷水
【单选题】
[192]裂解气干燥器D-209床层干燥剂约___用于吸收水分，余下部分为保护区床层吸收。
A. 0.7
B. 0.8
C. 0.9
D. 0.95
【单选题】
[193]进入T-203裂解气中含有无色而具有臭鸡蛋气味的气体，其水溶液显弱酸性的物质是___。
A. SO2
B. H2S
C. HCl
D. CO2
【单选题】
[194]C-601高压蒸汽管线吹扫的注意事项,下列说法错误的是___。
A. 应把汽轮机主汽阀阀芯抽出
B. 暖管-吹扫-降温-暖管-吹扫-降温反复进行
C. 吹扫暖管时不需要排液
D. 汽轮机的抽气管道止逆阀至机体的管线不便吹扫，可人工清扫
【单选题】
[195]关于蒸汽管线吹扫前应具备的条件，下列说法错误的是___。
A. 支架是否牢固
B. 出口设有排放消音设备
C. 蒸汽导向管无滑动障碍
D. 弹簧支吊架应加弹簧固定装置
【单选题】
[196]有关装置吹扫的说法,下列操作错误的是___。
A. 安全阀与管道连接处断开，并加盲板
B. 仪表引压管线不应该吹扫
C. 吹扫汽轮机入口管线时，汽轮机要处于盘车状态
D. 蒸汽吹扫时必须充分暖管，并注意疏水
【单选题】
[197]高压蒸汽(HS)管线暖管合格的标准是温度大于___。
A. 250℃
B. 350℃
C. 420℃
D. 500℃
【单选题】
[198]超高压蒸汽(VHS)管线暖管合格的标准是温度大于___。
A. 250℃
B. 350℃
C. 420℃
D. 500℃
【单选题】
[199]C-201带负荷试验时所用介质一般为___。
【单选题】
[200]裂解气压缩机一至四段冲洗油(冲洗水)量逐渐___。
A. 增大
B. 减少
C. 不变
D. 先增后减
【单选题】
[201]关于防喘振阀，下列说法正确的是___。
A. 防喘振阀一般设计成快关慢开阀
B. 开防喘振阀时先高压后低压
C. 关防喘振阀时要先高压后低压
D. 开防喘振阀时要快
【单选题】
[202]干气密封主密封的作用是___。
A. 防止机体内物料外泄
B. 防止润滑油外泄
C. 防止润滑油漏入机体
D. 防止大气进入机体
【单选题】
[203]压缩机开车时，要遵循___的原则。
A. 升速要慢
B. 先升压后提速
C. 先提速后提压
D. 升速要快
【单选题】
[204]压缩机升速通过临界转速区域时，下列说法正确的是___。
A. 升速应平稳而均匀
B. 可作一定时间的停留
C. 要快速通过临界转速区域，不得长时间停留
D. 发生异常情况应强行通过
【单选题】
[205]压缩机开车时，关小返回时，要遵循___。
A. 先关低压，后关高压
B. 先关高压，后关低压
C. 高低压要同时关
D. 返回设为自动
【单选题】
[206]裂解气压缩机氮气运转后，系统接收裂解气之前，主密封气应为___。
A. 氮气
B. 低压蒸汽
C. 低压乙烯气
D. 高压乙烯气
【单选题】
[207]吸收是根据组分对吸收剂的___不同而进行的。
A. 挥发度
B. 密度
C. 溶解度
D. 重度
【单选题】
[208]气体吸收的推动力是___。
A. 密度差
B. 温度差
C. 压力差
D. 浓度差
【单选题】
[209]蒸馏是利用组分___的不同而进行的双向传质过程。
A. 溶解度
B. 浓度差
C. 挥发度
D. 密度
【单选题】
[210]碱洗塔水洗段的主要作用是___。
A. 洗涤裂解气中二氧化碳
B. 洗涤裂解气中的硫化氢
C. 洗涤裂解气中的苯
D. 洗涤裂解气中夹带的碱液
【单选题】
[211]T-203碱洗的目的是为了脱除裂解气中的___气体。
A. H2S+CO2
B. H2S+CO
C. CO+CO2
D. CH4+CO
【单选题】
[212] 建立油路系统前，必须先投用___，否则润滑油会漏入系统。
A. 氮气隔离气
B. 二级密封
C. 主密封气
D. 密封蒸汽
【单选题】
[213]压缩机油路系统开车时，调节泵出口油压的正确方法是___。
A. 调节泵的出口阀
B. 调节自立式压力调节阀
C. 调节自立式压力调节阀旁路
D. 调节泵的入口阀
【单选题】
[214]压缩机油路系统开车时，油冷器、油过滤器必须___。
【单选题】
[215]裂解气压缩机系统开车时，在碱洗塔循环操作时，应注意___，防止碱液倒流入裂解气碱洗过热器。
A. 塔釜不能满
B. 水洗段不能满
C. 中强碱段不能满
D. 强碱段不能满
【单选题】
[216]干燥器再生恒温阶段再生气用量最多的是___。
A. D-209
B. D-210
C. D-211
D. D-301
【单选题】
[217]用蒸汽加热的换热器E-223停用时___。
A. 不准先停物料入口
B. 不准先停物料出口
C. 不准先停蒸汽入口
D. 不准先停蒸汽凝液出口
【单选题】
[218]洗油罐V-961液位高时可排放到___。
A. HBD
B. CBD
C. V-223
D. V-220
【单选题】
[219]新鲜碱罐TK-201顶的氮封用的N2纯度为___。
A. 0.995
B. 0.99
C. 0.988
D. 0.9999
【单选题】
[220]洗油注入裂解气压缩机各段入口的目的是___。
A. 润滑
B. 除锈
C. 脱除重组分
D. 防止结焦
【单选题】
[221]废碱系统的废碱液有腐蚀并带颗粒性物质最适合用___。
A. 闸阀
B. 截止阀
C. 旋塞阀
D. 蝶阀
【单选题】
[223]压缩机的注水用的是___。
A. HP BFW
B. CW
C. DW
D. QW
【单选题】
[224]高压锅炉给水作为注水经___冷却后进压缩机
A. E-209
B. E-226
C. E-227
D. E-228
【单选题】
[225]废碱液中的黄油来自___。
A. 烃类冷凝和聚合
B. 随裂解气带来
C. 与碱反应的产物
D. 硫化氢与碱反应的产物
【单选题】
[226]一段吸入罐V-201罐顶安全阀PSV20001A/S排往___。
【单选题】
[227]系统脱出水分最多的地方是___。
A. 段间罐
B. D-209
C. D-210
D. D-211
【单选题】
[228]裂解气压缩机吸入罐联锁后的动作为___。
A. 切断裂解气进料阀
B. 切断透平主汽阀
C. 全开吸入罐凝液送出阀
D. 全关吸入罐凝液送出阀
【单选题】
[229]压缩机油系统润滑油泵使用的是___。
A. 离心泵
B. 往复泵
C. 螺杆泵
D. 流体泵
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