【多选题】
[40]乙烯装置使用的蒸汽通常有___。
A. 超高压蒸汽
B. 高压蒸汽
C. 中压蒸汽
D. 低压蒸汽
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相关试题
【多选题】
[41]冷箱系统的冷量来源是___。
A. 制冷压缩机
B. 裂解气压缩机
C. 物料节流膨胀
D. 燃料气压缩机
【多选题】
[42]安全阀内漏时,有可能出现的现象是___。
A. 安全阀起跳
B. 出口温度升高
C. 安全阀管路有异常响声
D. 安全阀挂霜
【多选题】
[43]安全阀的选用类型主要是以___来确定的。
A. 排泄量
B. 排气能力
C. 喷嘴面积
D. 工艺介质
【多选题】
[44]离心泵的完好标准有___。
A. 运行正常,效能良好
B. 内部机件无损,质量符合要求
C. 主体整洁,零部件齐全好用
D. 技术资料齐全准确
【多选题】
[45]润滑剂的主要作用有___。
A. 润滑
B. 冷却
C. 洗涤
D. 密封
【多选题】
[46]换热器发生内漏的判断方法是___。
A. 看低压侧的压力是否明显升高
B. 看低压侧的温度变化是否明显
C. 分析低压侧的组成
D. 观察换热效果
【多选题】
[47]下列是按开启方式分类的安全阀有___。
A. 重锤式
B. 敞开式
C. 封闭式
D. 导向式
【多选题】
[48]关于离心泵的保护措施,下列说法正确的有___。
A. 电机接地
B. 出口装止逆阀
C. 入口装过滤器
D. 轴向力平衡装置
【多选题】
[49]___是离心压缩机的主要性能参数。
A. 流量
B. 压比
C. 效率
D. 功率
【多选题】
[50]影响透平真空度的主要因素包括___。
A. 主蒸汽压力
B. 冷却水温度
C. 喷射泵的工作状态
D. 透平的结垢程度
【多选题】
[51]离心泵启动时,压力表没指示,可能是以下原因___。
A. 压力表失灵
B. 未灌泵
C. 出口堵塞
D. 入口堵塞
【多选题】
[52]冷箱系统热交换物流达十余种,物流的流向形式有___。
A. 逆流
B. 顺流
C. 错流
D. 混合
【多选题】
[53]关于压力对碱洗的影响,下列说法正确的有___。
A. 提高压力有利于CO2和H2S的吸收
B. 压力高不利于CO2和H2S的吸收
C. 压力过高会使裂解气中重烃的露点升高凝液增加
D. 提高操作压力会增加设备投资
【多选题】
[54]换热器的投用步骤___。
A. 高点排气
B. 缓慢打开入口阀
C. 出口阀微开
D. 高点见液
【多选题】
[55]乙烯装置常用的冷剂有___。
A. 冷却水
B. 乙烯
C. 丙烯
D. 氢气
【多选题】
[56]常用的密封垫形式有___。
A. 石棉垫
B. 缠绕垫
C. 铁包垫
D. 金属垫
【多选题】
[57]适合电器设备灭火的是___。
A. 干粉灭火器
B. 泡沫灭火器
C. 1211灭火器
D. 二氧化碳灭火器
【多选题】
[58]嗓音危害有___。
A. 损害人听力
B. 影响人生理机能
C. 物质结构产生影响
D. 使人头晕
【多选题】
[59]当生产现场发生污染事故时,应如何处理___。
A. 先汇报总调
B. 控制事态发生
C. 汇报车间有关人员
D. 现场隔离
【多选题】
[60]动火的原则为___不许动火。
A. 没有许可的作业票
B. 未进行可燃气安全分析
C. 安全措施已经落实
D. 监护人未在现场
【多选题】
[61]动火作业根据火灾危险性分为___
A. 特级
B. 一级
C. 二级
D. 三级
【多选题】
[62]通常把毒物按其主要中毒症状分为___。
A. 麻醉性毒物
B. 窒息性毒物
C. 刺激性毒物
D. 综合性毒物
【多选题】
[63]根据《安全生产法》,下列___属于从业人员的权利?
A. 知情权
B. 建议权
C. 拒绝权
D. 紧急避险权
【多选题】
[64]通常在发生火灾的情况下,人们都会有极度的紧张感,但是为了逃生或尽量减少损失,我们可以使用哪些方法来迅速的扑灭火灾___。
A. 窒息法
B. 化学抑制法
C. 隔离法
D. 冷却法
【多选题】
[65]以下属危化品的是___。
A. 压缩气体和液化气体
B. 自燃物品和遇湿易燃物品
C. 氧化剂和有机过氧化物
D. 放射性物品
【多选题】
[66]固体废弃物可分为___。
A. 不可回收固体危险废物
B. 可回收利用固体危险废物
C. 可回收利用一般固体废物
D. 不可回收一般固体废物
【多选题】
[67]清洁生产的目的是___。
A. 节能
B. 降耗
C. 减污
D. 增效
【多选题】
[68]属于一般劳动保护用品的是___。
A. 工作服
B. 安全帽
C. 劳保手套
D. 安全带
【多选题】
[69]属于防止事故发生的安全技术措施有___。
A. 消除危险源
B. 限制能量或危险物质
C. 隔离
D. 减少故障和失误
【多选题】
[70]以下属于安全生产检查类型的是___。
A. 定期安全检查
B. 经常性安全检查
C. 专业安全检查
D. 节假日前安全检查
【多选题】
[71]禁止用___搬运易燃易爆液化气体等危险品。
A. 叉车
B. 铲车
C. 翻斗车
D. 电瓶车
【多选题】
[73]设备运行不准___。
A. 超温
B. 超压
C. 超负荷
D. 超速
【多选题】
[74]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】
[75]物质的三态是指___。
A. 气态
B. 液态
C. 固态
D. 常态
【多选题】
[76]根据润滑剂状态的不同,可分为以下几大类___。
A. 润滑油
B. 润滑脂
C. 固体润滑剂
D. 气体润滑剂
【多选题】
[77]关于甲醇的说法下列表述正确的有___。
A. 可用作防冻剂
B. 甲醇会使人眼盲
C. 易燃易挥发
D. 可以直接接触
【多选题】
[78]易燃液体的危险特性包括___。
A. 易燃性
B. 蒸汽易爆性
C. 流体扩散性
D. 毒害性
【多选题】
[79]热传播的形式有___。
A. 热传导
B. 热辐射
C. 热损失
D. 热对流
【多选题】
[80]设备外壁温度较高时,其向周围环境介质散发热量的方式有___。
A. 热传导
B. 对流传导
C. 热辐射
D. 蒸发
【多选题】
[81]现代石油化工生产特点是___。
A. 生产装置规模大、集中布局、立体交叉
B. 连续化、自动化生产,科技含量高
C. 易燃易爆、有毒有害
D. 高温高压
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The marked the establishment of feudalism in England.
A. A. Viking invasion
B. B. signing of the Magna Carta
C. C. Norman Conquest
D. D. Adoption of common law
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The end of the Wars of the Roses led to the rule of .
A. A. the House of Valois
B. B. the House of York
C. C. the House of Tudor
D. D. the House of Lancaster
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The direct cause for the Religious Reformation was King Henry VIII’s effort to .
A. A. divorce his wife
B. B. break with Rome
C. C. support the Protestants
D. D. declare his supreme power over the church
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The English Civil War broke out in 1642 between .
A. A. Protestants and Puritans
B. B. Royalists and Parliamentarians
C. C. nobles and peasants
D. D. aristocrats and Christians
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was passed after the Glorious Revolution.
A. A. Bill of Rights
B. B. Act of Supremacy
C. C. Provisions of Oxford
D. D. Magna Carta
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The Industrial Revolution was aThe Industrial Revolution was accomplished in Britain by the middle of the century.
A. A. 17th
B. B. 18th
C. C. 19th
D. D. 20th
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Britain faced strong challenges in its global imperial dominance by the beginning of the century.
A. A. 17th
B. B. 18th
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D. D. 20th
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As a revising chamber, the House of Lords is expected to the House of Commons.
A. A. rival
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C. C. criticize
D. D. inspect
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The British government is characterized by a division of powers between three of the following branches with the exception of the .
A. A. judiciary
B. B. legislature
C. C. monarchy
D. D. executive
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The importance of the British monarchy can be seen in its effect on .
A. A. passing the bills
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C. C. political parties
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British Cabinet works on the principle of .
A. A. collective responsibility
B. B. individual responsibility
C. C. defending the collectivism
D. D. defending the individuals
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The main duty of the British Privy Council is to .
A. A. make decisions
B. B. give advice
C. C. pass bills
D. D. supervise the Cabinet
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is the first African-American winner of the Nobel Prize for Literature.
A. A.Ralph Ellison
B. B. Tony Morrison
C. C. Richard Wright
D. D. James Baldwin
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Of the following writers, is Not a Nobel Prize winner.
A. A. Alice Walker
B. B. Ernest Hemingway
C. C. William Faulkner
D. D. Eugene O’Neil
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Of the following books, is NOT written by Ernest Hemingway.
A. A. The Sun Also Rises
B. B. The Sound and the Fury
C. C. A Farewell to Arms
D. D. For Whom the Bell Tolls
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F. Scott Fitzgerald’s finest novel is , and its theme is about
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B. B. Tender is the Night, love
C. C. Tales of the Jazz Age, the loss of oneself
D. D. The Beautiful and the Damned, the evil of human nature
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Of the following writers, is NOT included in the group of naturalists.
A. A. Stephen Crane
B. B. Frank Norris
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Of the following, is NOT characteristic of Mark Twain’s works.
A. A. colloquial speech
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Of the following, is considered Herman Melville’s masterpiece.
A. A. The Last of the Mohicans
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Of the following, is NOT Nathaniel Hawthorne’s work.
A. A. The Scarlet Letter
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is regarded as “the father of American literature”.
A. A. James Fennimore Cooper
B. B. Ralph Waldo
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Of the following writers, are from the Colonial and Revolutionary Periods.
A. A. Benjamin Franklin & Edgar Ellen Poe
B. B. Edgar Ellen Poe & Jonathan Edwards
C. C. Benjamin Franklin & Jonathan Edwards
D. D. Edgar Ellen Poe & Washington Irving
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The National Day of the United States falls on .
A. A. June 4th
B. B. July 4th
C. C. June 14th
D. D. July 14th
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Of the following, is NOT among the three major radio and TV networks in America.
A. A. the National Broadcasting System (NBS)
B. B. the Public Broadcasting Service (PBS)
C. C. the Columbia Broadcasting System (CBS)
D. D. the American Broadcasting System (ABS)
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is sold especially to the upper or upper-middle class and it has a reputation for its serious attitude and great bulk.
A. A. The Washington Post
B. B. The New York Times
C. C. Los Angeles Times
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Of the following universities, has NOT cultivated any American President yet.
A. A. Harvard University
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To get a bachelor’s degree, all undergraduate students are required to do the following except .
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Of the following, is NOT the responsibility of the board of trustees in U. S. institutions.
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D. D. decide which student to enroll
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Of the following, are NOT among the categories of American higher education.
A. A. universities and colleges
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Higher education in the United States began with the founding of
A. A. Yale University
B. B. Harvard University
C. C. Princeton University
D. D. New York University
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Of the following subjects, are NOT offered to elementary school students.
A. A. mathematics and languages
B. B. politics and business education
C. C. science and social studies
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Formal education in the United States consists of , secondary and higher education.
A. A. kindergarten
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At present, U. S. exports account for of the world’s total.
A. A. 10%
B. B. 15%
C. C. 20%
D. D. 25%
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is not one of the three giants in American automobile industry.
A. A. Ford
B. B. General Motors
C. C. Chrysler
D. D. American Motors
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The following statements are all true except .
A. A. Agribusinesses reflect the big, corporate nature of many farm enterprises.
B. B. Agribusinesses maintain a balanced trade pattern between agricultural imports and exports.
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D. D. Agribusinesses include a variety of farm businesses and structures.
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About of American crops are for export.
A. A. half
B. B. one third
C. C. one fourth
D. D. one fifth
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President Johnson tried to build a “Great Society” by introducing various programs like the following except .
A. A. Medicare
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D. D. Unemployment Pension
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The following inventions took place during the “second indThe following inventions took place during the “second industrial revolution” except .
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The first National Bank of the United States was established with the urge of .
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C. C. Andrew Jackson
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Chartered companies were NOT granted the by the British King or Queen.
A. A. political authority
B. B. economic rights
C. C. judicial authority
D. D. diplomatic authority