【单选题】
[单选题]第1362题:下列不属于离心泵气蚀现象的是___。
A. 出口励低
B. 泵体发出噪声
C. 电机电流正常
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【单选题】
[单选题]第1363题:个体防护用品只能作为-种辅助性措施 ,不能被视为控制危害的___手段。
【单选题】
[单选题]第1364题:压力容器作业的职业禁忌证不包括___。
A. 心脏病圾心电图明显异常(心律失常)
B. 红绿色盲
C. 恐高症
【单选题】
[单选题]第1365题:裂解气压缩机汽轮机转子平衡孔个数不可能为___。
【单选题】
[单选题]第1366题:下列安全设置中火炬气压缩机___是为了整个火炬系统安全而设置的。
A. 入口励低联锁
B. 出口励高连锁
C. 润滑油压力低联锁
【单选题】
[单选题]第1367题:排气筒高度越高污染物最高允许排放速率越___。
【单选题】
[单选题]第1368题:企业要加强重点岗位和重点部位监控发现事故征兆要立即发布___信息采取有效防范和处置措施,防止事故发生和事故损失扩大。
【单选题】
[单选题]第1369题:物质由- -种状态迅速的转变为另- -种状态 ,并在瞬间以机械能的形式放出巨大能量的现象称为___。
【单选题】
[单选题]第1370题:关于乙烯干燥器下面说法不正确的是___。
A. 设置乙烯干燥器为了吸附脱除少量的绿油
B. 设置乙烯干燥器是为了脱除其中的水分
C. 乙烯干燥器使用的干燥剂为4?分子筛和活性氧化铝
【单选题】
[单选题]第1371题:在生产过程中控制尘毒危害的最重要的方法是___。
A. 生产过程密闭化
B. 通风
C. 发放保健食品
【单选题】
[单选题]第1372题:三级安全教育制度是企业安全教育的基本教育制度。三级教育是指___。
A. 教育、 车间教育和岗位(班组)教育
B. 低级、中级、高级教育
C. 预备级、 普及级、提高级教育
【单选题】
[单选题]第1373题:液化烃罐组内的储罐不应超过___排。
【单选题】
[单选题]第1374题:离心泵的泵壳也称泵体，其主要作用是汇集由叶轮周圈甩出的液体并将液体的一部份()转换为___。
A. 动能、静压能
B. 静压能、动能
C. 动能、内能
【单选题】
[单选题]第1375题:员工对___指挥或(C)冒险作业,有权拒绝执行;对危害人安全和健康的行为，有权检举和控告。
A. 正确 强令
B. 正确 告之
C. 违章 强令
【单选题】
[单选题]第1376题:安全阀是-种由进口静压开启的自动泄压装置，防止容器___。
【单选题】
[单选题]第1377题:喘振不仅与叶轮流道中气体的旋转脱离有关.而且与管网特性有密切关系,管网容量愈大喘振的振幅___。
【单选题】
[单选题]第1378题:化工污染物都是在生产过程中产生的，其主要来源___。
A. 燃烧废气，产品和中间产品
B. 化学反应副产品，化学反应不完全
C. 化学反应不完全的副产 品;燃烧废.产品和中间产品
【单选题】
[单选题]第1379题: ___即根据演练工作需要,采取必要安全防护措施确保参演、观摩等人员以及生产运行系统安全。
A. 演练工作安全保障
B. 安全防护措施
C. 系统安全
【单选题】
[单选题]第1380题:在拉伸应力和腐蚀介质同时作用下的腐蚀叫做___。
A. 冲击腐蚀
B. 腐蚀疲劳
C. 应力腐蚀开裂
【单选题】
[单选题]第1381题:裂解炉风机轴承温度高的原因是___。
【单选题】
[单选题]第1381题:裂解炉风机轴承温度高的原因是___。
【单选题】
[单选题]第1383题:火炬的最大排放量可按事故障状态时___全部全部气体排放量考虑。
A. 乙烯压缩机+丙烯压缩机
B. 急冷水塔塔顶+脱甲烷塔
C. 急冷水塔塔顶+丙烯压缩机
【单选题】
[单选题]第1384题:当生产经营单位的生产工艺和技术发生变化时.应急预案___。
A. 可以免于重新备案
B. 应当废弃不用
C. 应当及时修订
【单选题】
[单选题]第1385题:个人防护措施属于第___级预防。
【单选题】
[单选题]第1386题:如果眼睛接触到了乙烯液体时，要用温水冲洗至少___min .如果疼痛或持续疼痛要借助- -定的药物、
【单选题】
[单选题]第1387题:生产、储存、经营其他物品的场所与居住场所设置在同- -建筑物内的，应当符合国家工程建设___技术标准。
【单选题】
[单选题]第1388题:在乙烯装置停车过程中，进行冷箱升温操作时，有可能发生___的危险。
A. 氮氧化物爆炸
B. 冷箱冻堵
C. 轻烃着火
【单选题】
[单选题]第1389题:主要来自化石燃料的燃烧(如机动车尾气、燃煤)、挥发性有机物等的细颗粒物(PM2 5)其直径在___。
A. 2.5微米以下
B. 2.5微米以上
C. 10微米以上
【单选题】
[单选题]第1390题:裂解炉废热锅炉运行危险性有___。
A. 废热锅炉干烧导致锅炉爆炸
B. 废热锅炉出口温度高
C. 急冷器出口温度高
【单选题】
[单选题]第1391题:板翅式换热器最基本原件是___。
【单选题】
[单选题]第1392题:乙烯生产中使用或产生的液体大部分物质的闪点小于___C。
【单选题】
[单选题]第1393题:不锈钢管道主要的腐蚀类型是___。
A. 均腐蚀
B. 应力腐蚀
C. 晶间腐蚀和点腐蚀
【单选题】
[单选题]第1394题:可燃液体在火源作用下___进行燃烧。
A. 本杨直接
B. 蒸发成蒸气氧化分解
C. 高温液体部分
【单选题】
[单选题]第1395题:国务院地震工作主管部7和省、自治区、直辖市人民政府负责管理地震工作的部门]或者机构负责审定建设工程的___,确定抗震设防要求。
A. 安全评价报告
B. 地震安全性评价报告
C. 地震安全专篇
【单选题】
[单选题]第1396题:泵抱轴是因为___。
A. 润滑油少
B. 冷却水中断
C. 油箱杂物多
【单选题】
[单选题]第1397题: ___是指单位质量液体通过泵时所增加的能量。
【单选题】
[单选题]第1398题:安全带的正确使用方法应该是___。
【单选题】
[单选题]第1399题:演练工作经费保障根据演练工作需要,明确演练工作经费及___。
【单选题】
[单选题]第1400题:装置停电时，对压缩区的处理正确的是___。
A. 所有压缩机按紧急停车按钮停车
B. 汽透平压缩机不懦停车
C. 自启动泵应设置在“自动"”状态
【单选题】
[单选题]第1401题：可持续发展原则的首要要求是___。
A. 协调社会经济发展
B. 保护改善生态环境
C. 满足人民基本需要
【单选题】
[单选题]第1402题：关于爆炸，下列不正确的说法是___。
A. 爆炸的特点是具有破坏力，产生爆炸声和冲击波
B. 爆炸是一种极为迅速的物理和化学变化
C. 爆炸可分为物理爆炸和化学爆炸
推荐试题
【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
【单选题】
) 1. Even Tony’s six-year-old son asked him ______ smoking.
A. stops B. stopped C. to stop D. stopping
【单选题】
2.—What do you think of the lecture of Li Yang’s Crazy English?
— I think it’s _______ , but someone thinks it’s much too ________.
A. wonderful enough; bored B. enough wonderful; boring
C. enough wonderful; bored D. wonderful enough; boring
【单选题】
3.—He didn’t go to the lecture this morning, did he?
— _____ ．Though he was not feeling very well．
A. No, he didnt B. Yes; he did C. No, he did D. Yes, he didnt
【单选题】
4. If you read a lot, your life ______ full of pleasure.
A. will be B. is C. be D. was
【单选题】
5. The black bag _________ be Annas. She has a blue one.
A. should B. cant C. wouldnt D. could
【单选题】
6. Susan, why are you still here? They are all ready to start.
Im sorry, but I _________ when to start.
A. dont tell B. wasnt told C. didnt tell D. havent told
【单选题】
7.—Why dont you choose the red tie?
—For me, it doesn’t _____ my shirt very well．
A. fix B. accept C. compare D. match
【单选题】
8. — Could you tell me ______? I must find him．
— Sorry．I don’t know．But he was here just now．
A. where Tom was B. where Tom is
C. where has Tom gone D. where can I find Tom
【单选题】
9. —What did Mr Green say to you?
— What a heavy rain! How did you come here? He asked________.
A. at all B. in fact C. in surprise D. as a result
【单选题】
10. I often see Tom on the playground．When I passed the playground yesterday, I saw him ．
A. play; playing B. to play; play C. playing; to play D. playing; play
【单选题】
11. — Mum, could I have ____________ to drink?
— Oh, dear．You can only drink some water．There is _________ in the kitchen．
A. anything; else something B. anything; something else
C. something; else nothing D. something; nothing else
【单选题】
12. We all know that learning a foreign language _______ time and effort.
A. requires B. reduces C. removes D. repeats
【单选题】
13. Her son __________ Coke, but now he __________ milk．
A. is used to drinking; used to drink B. used to drink; uses to drink
C. used to drink; is used to drinking D. is used to drink; is drinking
【单选题】
14. I don’t know the teacher is talking with Miss Wang．
A. what B. whom C. who D. which
【单选题】
15.Millie does __________ that many people are thankful to her．
A. such an important and helpful job B. so important and helpful work
C. a very important and helpful job D. such an important and helpful work
【单选题】
16. I think eating more vegetables is good _______ our health.
—Yes, I agree _______ you.
A. at, to B. for, with C. to, to D. for, to
【单选题】
17. I often go on holiday with my parents _____ summer.
A. in B. at C. on D. of
【单选题】
18. I called you at 4:00 yesterday afternoon, but nobody answered.
Sorry, I ______ with my friends at that time.
A. had swum B. swam C. would swim D. was swimming
【单选题】
19.––Who is on the playground? ---__________．
A. Never B. None C. No one D. A lot
【单选题】
20. The schoolboy ______ a blind man cross the street yesterday.
A. helps B. helped C. will help D. has helped
【单选题】
21. —The 2010 World Expo which will last 184 days will be held in Shanghai on May 1st.
—________exciting news! We shall try our best to support it.
A. How B. How an C. What D. What an
【单选题】
22. They preferred ______ in bed rather than _____ horses．
A. to lie; to ride B. lying; riding C. lying; ride D. to lie; ride
【单选题】
23. —What was Jim wearing at the party?
— Nothing _______. He was in his usual shirt and jeans.
A. special B. simple C. important D. interesting
【单选题】
24. The 2016 Olympic Games ________ in Brazil. Would you like to go there?
Maybe, if possible.
A. are held B. will be held C. were held D. have been held
【单选题】
25. — David, look at the man in white over there．Can you tell me _______ ?
—He is a doctor．
A. who is he B. who he is C．what does he do D. what he does
【单选题】
( ) 26.With help from a Mr. H, you can__________.
A. stop wearing your watch B. get new books and objects
C. finish your homework on time D. know when parents or teachers are near
【单选题】
( ) 27. A PENGO WATCH CONTROL can help you to ______________.
A. repair your TV B. put away your books and objects
C. become a James Bond D. get a daily weather report
【单选题】
( ) 28. You can get your Mr. H for___________.
A. $299 B. $499 C. $199 D. $99
【单选题】
( ) 29. When was canned food invented?
A. In 1870. B. In 1810. C. In 1902. D. In 1926.
【单选题】
( ) 30. After the trip to the Arctic, Clarence Birdseye invented ____________.
A. canned food B. can openers
C. frozen food D. air conditioning
【单选题】
( ) 31. Changes in weather _____________ in Willis Carrier's company.
A. helped to keep food B. made rooms comfortable
C. caused health problems D. hurt printing paper
【单选题】
( ) 32. According to the passage, which of the following may lead to inventions?
A. People's needs. B. Public support.
C. Modern technology. D. Practical suggestions.
【单选题】
( ) 33. 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】
( ) 34. 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】
( ) 35. 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．
