相关试题
【单选题】
液硫池增压风机进出口方向是___
A. 下进上出
B. 上进下出
C. 轴向进径向出
D. 径向进轴向出
【单选题】
离心泵在运转时，流量增大，则电机电流___
【单选题】
为了防止机泵的轴弯曲变形，则备用机泵要求定期___
【单选题】
以下___不是硫封罐的作用。
A. 防止气体从液硫线进硫池
B. 保护风机
C. 不使上游装置憋压
D. 提高操作压力
【单选题】
屏蔽泵可以作截流运转，但截流时间不允许超过___分钟
【单选题】
汽轮主油箱的作用是___。
A. 储油
B. 分离水分
C. 储油和分离水分、空气杂物和沉淀物
D. 以上答案都不对
【多选题】
下列有关酸性气采样的注意事项正确的是___
A. 要佩带好空气呼吸器
B. 要站在上风向；
C. 要两个人以上，一人作业，一人监护
D. 开阀时要慢慢开，防止大量酸性气泄出。
【多选题】
下列关于安全标志含义的叙述，正确的是___。
A. 禁止标志，含义是不准或制止人们某种行为
B. 警告标志，含义是警告人们当心、小心、注意
C. 指令标志，含义是必须遵守
D. 提示标志，含义是提示人们不能去做
【多选题】
下列描述正确的是：___
A. 可燃液体的闪点越低，火灾危险越小。
B. 可燃物质的自燃点越高，则火灾危险性越大。
C. 可燃液体的闪点越低，火灾危险越大。
D. 可燃物质的自燃点越高，则火灾危险性越小。
【多选题】
下列哪些灭火方法是不正确的？ ___
A. 扑救液化气体火灾时，应先扑灭火焰，然后采取堵漏措施；
B. 扑救爆炸物品火灾，需用沙土盖压；
C. 对于遇湿易燃物品火灾，应使用泡沫、酸碱等灭火剂扑救；
D. 扑救毒害品，腐蚀品的火灾时，应尽量使用低压水流或雾状水；
【多选题】
发生人身触电事故，在进行救护时，首先应采取措施中，错误的是？___
A. 立即检查触电者是否还有心跳呼吸，如没有立即进行心肺复苏；
B. 立即断开电源使触电者与带电部份脱离；
C. 立即拨打120呼叫救护车；
D. 联系调度通知电工停电。
【多选题】
下列属于进受限空间作业监护人职责的是___
A. 熟悉作业区域的环境和工艺情况
B. 处理异常情况的能力
C. 清点出入受限空间作业人数
D. 对装置进行定时巡回检查
【多选题】
根据《中国石化生产安全事故管理规定》对事故分为四个等级，下列属于重大事故的是___
A. 事故造成15人死亡，重伤6人，直接经济损失3000万元。
B. 事故造成8人死亡，重伤60人，直接经济损失2000万元。
C. 事故造成3人死亡，重伤2人，直接经济损失6000万元。
D. 事故造成5人死亡，重伤30人，直接经济损失2500万元。
【多选题】
下列关于盲板抽堵作业叙述中正确的是___
A. 盲板应有一个或二个手柄，便于加拆、辨识及挂牌。
B. 盲板应加在有物料来源阀门的另一侧，盲板两侧都要安装合格的垫片，所有螺栓必须紧固到位。
C. 作业人员应在上风向作业，不要正对法兰缝隙；在拆除螺栓时，应按顺序进行拆除。
D. 同一管道一次只允许进行两点的盲板抽堵作业。
【多选题】
下列关于起重作业叙述中正确的是___
A. 吊装过程中出现故障，起重操作人员向指挥者报告后。可以离开岗位。
B. 起重操作人员对紧急停车信号，不论何人发出，均应立即执行。
C. 当起重臂、吊钩或吊物下面有人或吊物上有人、浮置物时不得进行起重操作。
D. 停工或休息时，不得将吊物、吊笼、吊具和吊索悬吊在空中。
【多选题】
下列属于硫磺联合装置有毒有害物质的是___
A. 硫化氢
B. 二氧化硫
C. 氨
D. 甲醇
【多选题】
机械密封按端面可分为___
A. 单端面密封
B. 双端面密封
C. 三端面密封
D. 四端面密封
【多选题】
管子管件阀门在使用前必须进行外观检查，要求表面无___等缺陷。
【多选题】
以下属于装置内静泄漏点的是___
A. 阀门填料处泄漏
B. 管线沙眼泄漏
C. 机泵轴封滴漏
D. 动力风管线接口漏
【多选题】
不能用擦洗设备的是___
A. 肥皂
B. 洗衣粉
C. 润滑油
D. 汽油
【多选题】
尾气焚烧炉鼓风机停机时焚烧炉的现象是___。
A. 进炉风量为零
B. 炉膛压力升高
C. 炉膛熄火
D. 没有变化
【多选题】
在选择壳程介质时，下面___应走管程。
A. 无毒、无害
B. 有毒、有害
C. 温度或压力高
D. 温度或压力低
【多选题】
离心泵抽空时的现象是___。
A. 电机的电流上升
B. 泵出口压力表指示下降
C. 有特殊的响声
D. 泵体振动
【多选题】
安全阀常见的故障有___。
A. 密封面发生泄漏
B. 安全阀达不到全开状态
C. 阀瓣振荡
D. 安全阀不能迅速关闭
【多选题】
润滑油中一旦有水分混入，会润滑不良、___等不良影响。
A. 腐蚀
B. 乳化
C. 被稀释
D. 粘度变化
【多选题】
按阀门结构分类，阀门可以分为___。
A. 闸阀
B. 截止阀
C. 单向阀
D. 蝶阀
【多选题】
化工生产上属于定型设备的有___。
A. 吸收塔
B. 再生塔
C. 容器
D. 换热器
【多选题】
压缩机喘振的影响因素是___。
A. 压缩机的转速
B. 管网的容积
C. 压缩机进口压力
D. 压缩机功率
【多选题】
换热管及管板胀接工艺有等几种。___。
A. 机械胀接
B. 液袋胀接
C. 爆破胀接
D. 橡胶胀接
【多选题】
通过换热器型号BES700-1.27/1.61-155-6/19-4可以获得以下信息。___。
A. B指封头管箱， E指单程壳体，S指钩圈式浮头
B. 700是公称直径，mm；1.27/1.61是指管/壳程公称压力, Mpa
C. 155是指公称换热面积, m2；6/19 是指换热管长度m，及换热管外径，mm
D. 管程数为4，壳程数为1
【多选题】
压力容器液压试验___后为合格。
A. 无泄漏
B. 无可见异常变形
C. 试验中无异常响声
D. 以上均不是
【多选题】
废热锅炉投用后，下列___指标是锅炉水控制指标。
A. 电导率
B. pH值
C. 磷酸根
D. 钠离子
【多选题】
以下图所示，1、2、3分别指离心泵哪个部位___。
A. 轴承
B. 密封
C. 呼吸阀
D. 油视镜
【多选题】
空气冷却器的风机风量调节手段有___。
A. 调节叶片倾角
B. 风机的转速
C. 百叶窗的开启程度
D. 管束的多少
【多选题】
离心泵的主要性能是通过___ 等表示的。
【多选题】
进汽温度过高和过低使汽轮机___。
A. 振动
B. 叶片冲刷
C. 叶片断裂
D. 零部件互相碰撞
【多选题】
转子发生工频振动的原因有___。
A. 转子不平衡
B. 油膜振荡
C. 轴承无紧力
D. 对中不良
【多选题】
换热器管束清洗后的验收方法有？___等检查
A. 要求清洗单位用高压水逐条通一遍
B. 采用手电筒检查管内是否有垢物
C. 部分黏性油类冲不掉，随管壁打转可通过
D. 施工单位说洗干净了就签字验收
推荐试题
【单选题】
Tom is a book lover. ______ likes reading very much.
A. He B. She C. You D. It
【单选题】
—May I listen to the music here, Mr. White?
—Sorry, you’d better it like that．
A. not to do B. not do to
C. dont do D. not do
【单选题】
3.—Did you have a good time at Lauras birthday party?
— Yes, indeed. Its several years ________ I enjoyed myself so much.
A. when B. before C. since D. that
【单选题】
4. —___________ is the Summer Palace from here?
About three kilometers away. You can take the No. 35 bus.
A. How long B. How far C. How often D. How much
【单选题】
5. I was looking for a birthday gift for my mother, but I couldnt find ______ suitable.
A. anything B. something C. nothing D. everything
【单选题】
6. A friend of my ____ and I are going to visit_______ next week．
A. father; Browns B. father's; Browns
C. father; the Browns D. father's; the Browns
【单选题】
7. She ______ very hard since she came to our school.
A. studies B. has studied C. is studying D. studied
【单选题】
8. — Who will send you to the new school, your mom or your dad?
— _______. Ill go there by myself.
A. Both B. Either C. Neither D. None
【单选题】
9.—Well do what we can ____English well this term．
—It’s high time for you to work hard．
A. study B．to study C. be studied D. be studying
【单选题】
10. —I’m going to Flower Bookstore. Could you tell me ______?
— Sorry, I don’t know. I’m new here.
A. where it is B. where was it C. where is it D. where it was
【单选题】
11. How do you like the dishes, Eric?
— Fantastic! Nothing tastes ________.
A. nice B. better C. terrible D. worse
【单选题】
12. ______ Lin Feng has to work late, she always wears a smile on her face.
A. Because B. If C. Until D. Though
【单选题】
13.You can save money _______ you buy cheaper things.
A. before B. unless C. if D. until
【单选题】
14. We will have a _________ holiday after the exam．
A. two-month B. two month’s C. two month D. two-months
【单选题】
15. —We will build an underground in Xuzhou before 2015．
— Wow, _______! Will it pass our place?
A. what an excited news B. how excited the news is
C. what exciting news D. how exciting
【单选题】
16. — Emily, here’s a dictionary．I hope it will help you in some way．
— Thank you．It’s ________ what I need．
A. almost B. still C. only D. just
【单选题】
17. —Oh．I’m hungry．Mum, can I have the hamburger on the plate?
—No．It tastes ．
A. terribly B. terrible C. good D. well
【单选题】
18. —We can invite our teachers to the farewell party next Saturday.
—Yes, ______? I’ll call them at once.
A. what for B. what C. why not D. why
【单选题】
19.You can ________ ask the old man to move away to any other place because he has lived ________ here for at least sixty years．
A. hardly; alone B. hard; alone
C. hardly; lonely D. hardly; lonely
【单选题】
20.—I’m going back to see my grandparents this weekend．
—________．
A. It’s very nice of you B. You’d better hurry
C. Say goodbye to them D. Give my best wishes to them
【单选题】
21.—Why not take ____ umbrella with the sign “Made in China”? It is useful.
—What _______ good advice it is!
A. an; a B. a; a C. an; \ D. \; a
【单选题】
22. —Do you know the boy________ is sitting next to Peter?
— Yes. He is Peter’s friend. They are celebrating his ________ birthday.
A. who; ninth B. that; ninth C. /; ninth D. which; ninth
【单选题】
23. It was dark, ______ I couldnt see what was happening.
A. or B. though C. but D. so
【单选题】
24.—You can use MSN to talk with Vivien on the Internet.
—I know. But can you tell me ________?
A. what I can use it B. when I can use it
C. why can I use it D. how can I use it
【单选题】
25. _______ are you going to the School Uniform Exhibition, Amy ?
To learn about different styles of school uniform.
A. What B. Where C. Which D. Why
【单选题】
( ) 26. Where does the writer of "The little Prince" come from?
A．England． B．France． C．America． D．China．
【单选题】
( ) 27. What does the prince do after the fox tells him a secret?
A．He cares more about a flower and a sheep．
B．He meets many more strange adults on other planets．
C．He realizes his love for the rose and he goes back to his planet．
D．He discovers interesting things such as a snake, other roses and a fox
【单选题】
( ) 28. What does "The little Prince" mainly talk about? It' s about _________．
A．the adult world B．the planet B -612
C．a rose and a fox D．the adventure of a young prince
【单选题】
( ) 29. What is the writer's main purpose（目的）in writing this passage？
A．To tell the readers his life story．
B．To tell people what kind of person his father was．
C．To tell the readers what present he got from his father．
D． To let people know how poor he was．
【单选题】
( ) 30. Why did the father not ask his son not to do this and do that？
A．Because he felt quite confident of his son．
B．Because he was born from a poor family．
C．Because he was a man of few words．
D．Because he didn't want to be much too strict with his son．
【单选题】
( ) 31. What would someone learn from this passage？
A．How to live by oneself． B．How to stand on one's own feet．
C．What a good father should do． D．What the self-important is like．
【单选题】
( ) 32. What may be the proper Chinese for the underlined part in the passage？
A．闲暇时光 B．学费 C．精神空虚 D．经济不足
【单选题】
( ) 33. Why did Natalie Smith pay for the six cars behind her?
A. She had seven tickets.
B. She hoped to please others.
C. She knew the car drivers well.
D. She wanted to show kindness.
【单选题】
( ) 34. Judy Foreman copied down the phrase because she ___ .
A. thought it was beautifully written
B. wanted to know what it really meant
C. decided to write it on a warehouse wall
D. wanted her husband to put it up in the classroom
【单选题】
( ) 35. Who came up with the phrase according to the passage?
A. Judy Foreman. B. Natalie Smith. C. Anne Herbert D. Alice Johnson.
【单选题】
( ) 36. What can we infer from the last paragraph?
A. People should practice random kindness to those in need.
B. People who receive kindness are likely to offer it to others.
C. People should practice random kindness to strangers they meet.
D. People who receive kindness are likely to pay it back to the giver.
【单选题】
( ) 37.The greatest river for navigation is ___________.
A. the Nile B. the Amazon C. the Mekong D. the Mississippi
【单选题】
( ) 38. From a dam, people can use the water for ___________.
A. keeping the rivers clean B. only making electricity
C. irrigation and making electricity D. washing clothes
【单选题】
( ) 39. The water in the river is polluted because of _____________.
A. people's drinking water too much B. people's swimming in the river too much
C. chemicals and other materials D. people's building a dam across a river
【单选题】
( ) 40. The best title of the passage is ___________.
A. Rivers in Cities B. The importance of Rivers
C. Transportation D. Natural Resources
