相关试题
【单选题】
设计时,户内燃气管道的管径尺寸取决于所接燃具的什么因素___。
A. 最大工作压力
B. 最大燃气流量
C. 最大设计压力
D. 最高工作温度
【单选题】
一般调压站的进出口管道需装上绝缘接头,其作用为何___。
A. 隔绝外来的导电装置
B. 做放进电子检管器的引入口
C. 用作站内管道的气密测试
D. 用作站内管道的强度测试
【单选题】
电力安全装置中,漏电断路的使用是防止下列哪一种危险事故的发生?___
A. 触电
B. 火警
C. 电荷超负
D. 短路
【单选题】
根据国家规定,凡在坠落高度离基准面多少米以上有可能坠落的高处进行的作业,均称为高处作业?___
【单选题】
如果工作场地潮湿,电动工具使用者应遵循下列哪种方法来减低触电的危险?___
A. 在站立处垫干木板
B. 在站立处垫绝缘胶垫
C. 不穿任何鞋具
D. 穿防静电鞋
【单选题】
在进行电气检修工作前,采取以下哪个安全措施,可避免误将电闸重开而导致意外的发生?___
A. 穿着防静电工作服
B. 上锁挂牌
C. 将电器设备接上漏电断路器
D. 戴绝缘手套
【单选题】
为了便于清管器通过,在输气管道线路使用的截断阀或封闭阀门___。
A. 球阀
B. 截断阀
C. 闸阀
D. 直通式球阀
【单选题】
下面不属于造成球阀内漏的原因___。
A. 阀门限位不正确
B. 密封面有杂物
C. 球体偏芯
D. 密封面损坏
【单选题】
扑救油气火灾最好使用___。
A. 水
B. 二氧化碳
C. 1211灭火器
D. 干粉灭火器
【单选题】
当获知输气管线爆裂时,应立即___。
A. 通知当地政府
B. 请示上级指示处理办法
C. 关闭事故点两侧线路截断阀
D. 准备消防器材
【单选题】
绝缘手套和绝缘靴的电气试验周期为___一次。
A. 3个月
B. 半年
C. 9个月
D. 1年
【单选题】
安装和检修法兰连接的阀门和设备,其螺栓的紧固应按___的顺序进行操作。
A. 先上所有螺母的三分之一
B. 先上所有螺母的三分之二
C. 按一定次序
D. 按180度对角
【单选题】
在阀门注脂维护中,要保持密封脂的注入压力___管道介质的压力,密封脂才能注入到阀座四周。
A. 高于
B. 低于
C. 等于
D. 没有关系
【单选题】
输气站场调压支路紧急截断阀是通过___来调节阀门紧急关断的压力值。
A. 动力源
B. 电磁阀
C. 调整弹簧
D. 阀门限位
【单选题】
把电气设备正常情况下不带电的金属部分与电网的保护零线进行连接,称作___。
A. 保护接地
B. 保护接零
C. 工作接地
D. 工作接零
【单选题】
电器设备外壳的明显处有清晰的永久性凸纹标志“EX”表示___。
A. 是经安全认证的电气设备
B. 是防爆型电气设备
C. 是节能型电气设备
D. 带双重绝缘的电气设备
【单选题】
埋设在一般土壤中的金属管道,其最小保护电位应为___相对饱和硫酸铜参比电极。
A. 0.75V
B. 0.85V
C. 0.95V
D. 1.25V
【单选题】
安全阀的作用在于,当管线、设备内的压力超过其___时,便自动开启,放空、泄压、报警。
A. 允许压力
B. 最高工作压力
C. 最高工作压力的1.05~1.10倍
D. 设定压力值
【单选题】
烃类组分与___在一定条件下会形成固态水合物而堵塞管道。
A. 硫化氢
B. 凝析油
C. 防冻剂
D. 液态水
【单选题】
天然气经过净化厂处理后能减缓其中含硫成分及水对管道和设备的___损坏。
【单选题】
输气管道一旦形成水合物会造成上游压力___较大,还会因此会引发相关事故。
【单选题】
采用增湿、加抗静电添加剂的方法促使静电电荷从带电体上自行消散的方法为___。
A. 接地法
B. 中和法
C. 泄漏法
D. 工艺控制法
【单选题】
场站自控系统标识中流量变送的字母代号为___。
【单选题】
埋地管线当其表面防腐层破损后,会受到___。
A. 均匀腐蚀
B. 局部腐蚀
C. 化学腐蚀
D. 电化学腐蚀
【单选题】
色谱分析仪由几部分组成___。
A. 控制器,分析仪,取样器
B. 控制器,取样器
C. 控制器,分析仪
D. 分析仪,取样器
【单选题】
一般情况下,煤气、天然气高压系统必须采用___。
A. 铸铁管
B. 聚乙烯管
C. 钢管
D. 混凝土管
【单选题】
在处理燃气紧急事件时,以下哪一项为最优先的考虑___。
A. 保障生命
B. 保障财产
C. 找出及修理燃气泄漏
D. 找出泄漏原因
【单选题】
划分天然气输气场站危险区域的主要目的是什么___。
A. 设计及装置合适的防爆电子器材及控制产生火花的设施
B. 限制人员进出有关区域
C. 装设相应合适的防火设施
D. 划分相应等级危险源
【单选题】
电焊工下列哪些操作属于违章作业___。
A. 转移工作地点时,在切断电焊机电源情况下移动焊机
B. 切断电源后检查电焊机的故障
C. 带电改接电焊机接头
D. 电焊机防止在干燥、通风的地方进行焊接
【单选题】
安全阀属于哪一类的安全装置___。
A. 联锁
B. 超限保险
C. 监测控制
D. 电动控制
【单选题】
根据国标GB50028,埋地敷设低压燃气管道时,管道应与建筑物的基础保持最小多少水平净距___。
A. 0.7米
B. 1.0米
C. 1.5米
D. 2.0米
【单选题】
火灾发生时,使用灭火器应站在下列哪位置___。
A. 上风位
B. 下风位
C. 任何位置
D. 相对高处
【单选题】
解决火险隐患要坚持"三定",请问"三定"是指___。
A. 定专人、定时间、定整改措施
B. 定时间、定地点、定专人
C. 定人、定岗、定编制
D. 定时间、定器材、定专人
【单选题】
造成埋地管道事故的因素大致有设计、操作、第三方破坏和___四大类。
【单选题】
存在因河流冲刷造成水土流失危及管道的河岸应该修建___进行保护。
【单选题】
天然气输配气管道投产前应进行惰性气体置换,置换时应在被置换管道末端进行含氧量检测,当在管道末端放空出口检测到氧含量小于___时,可确认置换合格。
【单选题】
禁止在管道中心线两侧各___ m范围内种植深根植物。
【单选题】
生产中遇到特别严重险情,职工可以采取下列哪一种行动?___
A. 停止作业
B. 停止作业,采用紧急防范措施,并撤离危险岗位
C. 坚守工作岗位
D. 向上级报告,等待指示
【单选题】
在下列哪一个环境中工作,较容易发生人员中暑___。
A. 没有空气调节的地方
B. 酷热及潮湿的环境
C. 没有遮盖的地方
D. 露天作业的地方
【单选题】
安全宣传教育的最终目的是什么?___
A. 提高职工的安全生产素质
B. 树立全局观
C. 提高科技水平
D. 了解安全常识
推荐试题
【单选题】
Which of the following statements is Not True? ___
A. Your boss may be willing to change his behavior than your think.
B. Some managers don’t care how much their words or actions upset staffers.
C. You should tell your managers how their outbursts make you feel.
D. If the boss values your work, he may stop his abusiveness.
【单选题】
Which of the following public places is NOT mentioned that have banned mobiles? ___
A. restaurants
B. gas stations
C. theatres
D. museums
【单选题】
What happened when the cellphone of the speaker’s friend rang? ___
A. His friend answered the phone and the speaker became invisible to his friend.
B. They answered the phone together.
C. The speaker threw away his friend’s cellphone.
D. His friend hung up the phone and kept talking to the speaker. (C)
【单选题】
What happened to the man? ___
A. He had a car accident.
B. He had his arms broken.
C. He lost his mobile phone.
D. He was not able to use his mobile because he was in a remote area.
【单选题】
Which of the following is NOT true? ___
A. Today there are about 400 million cellphone owners.
B. Today there are about 300 million Personal Computer subscribers.
C. Cellphones will be more often used.
D. Cellphones will completely replace Personal Computers.
【单选题】
Which of the following is true? ___
A. Ellen Johnson-Sirleaf stayed in her country during the nation’s civil war.
B. She is still working for the United Nations.
C. She is the first woman ever elected president of an Asian country.
D. She is a Liberia.
【单选题】
What do you know about the solar eclipse? ___
A. Only hundreds of people gazed at it.
B. It was caused by the earth passing in front of the moon.
C. It was not often seen.
D. It started in Mongolia and ended in Brazil.
【单选题】
What is true about this meeting between the USA and China? ___
A. It was a meeting between Xi Jinping and Donald Trump.
B. It was the first time that the Chinese president had visited the United States.
C. The issue of the Olympics was discussed.
D. South Korea’s nuclear weapons program was discussed.
【单选题】
In which year did the station’s first permanent crew arrived? ___
A. 1998
B. 2000
C. 2002
D. 2003
【单选题】
If elected, ________________. ___
A. Richardson would be the first Hispanic President.
B. Clinton would be the first African-American President.
C. Romney world be the first Hispanic President.
D. Clinton would be the first Mormon President.
【单选题】
What are the things that the speaker’s inner and outer life based on? ___
A. Money
B. Health
C.
D. elicious food
【单选题】
What kind of things has its own reason for existing? ___
A. Questioning
B. The structure of reality
C. Curiosity
D. The mysteries of eternity
【单选题】
Who are so full of doubts? ___
A. Fools and fanatics
B. Wise people
C. Professors
D. University students
【单选题】
To the speaker, what kind of things always win in life? ___
A. Truth and love
B. Power and status
C. Great minds
D. Money and material
【单选题】
What’s the key word of the speaker? ___
A. Love
B. Power
C. Freedom
D. Curiosity
【单选题】
What happened to the man? ___
A. He committed identity theft.
B. He was put in prison.
C. He reported a case of theft to police.
D. He robbed a bank.
【单选题】
What is the attitude of Mrs. Washington? ___
A. She tries to cover up for little George.
B. She thinks Mr. Washington should not ask George directly.
C. She encourages George to chop down the tree.
D. She thinks Mr. Washington should put the blame on the sharp axe.
【单选题】
What do Nancy’s colleagues think about her transgender transition? ___
A. They think it is ridiculous.
B. They make a big fuss about it.
C. They take it lightly.
D. They are sympathetic.
【单选题】
What are the two women talking about? ___
A. They are talking women’s liberation.
B. They are talking about an ideal husband.
C. They want a rewarding job.
D. They are talking about women’s choice between family and career.
【单选题】
According to what you’ve heard, which of the following is NOT true? ___
A. The two ten-minute workouts help people get into shape in a short time.
B. The two ten-minute workouts are designed for the people of certain level of fitness.
C. The two ten-minute workouts help people to lose weight and to be vigorous.
D. The two ten-minute workouts are suitable for most people.
【单选题】
What does Cindy say about visiting Costa Rica in June? ___
A. It is bad because June falls in the rainy season.
B. It is bad because there is almost no sunshine in June.
C. It is not bad because it seldom rains on the coast.
D. It is not bad because it does not rain all the time and in all the places.
【单选题】
What did the professor say about the translation of idioms across language? ___
A. Almost all idioms are translatable and can be universally used.
B. Idioms are hardly translatable and cannot be universally used.
C. Not all idioms are translatable but many have translations in other language.
D. All idioms are translatable and tend to become international.
【单选题】
According to Professor Randal, which of the following is true for SAT II? ___
A. It tests your critical thinking and problem-solving skills.
B. It is more content oriented.
C. It is designed to measure subject-area knowledge.
D. It is designed to measure achievement in
E. nglish, math, reading, and science.
【单选题】
The movie in IMAX format adds the amazing effects except ___________. ___
A. the effect of sound
B. the effect of view
C. the effect of landscape
D. the effect of mystery
【单选题】
What can we learn from the conversation? ___
A. Nobody thinks he is under stress.
B. People should avoid stress completely.
C. Stress is a normal state of affairs.
D. Nobody is subject to stress.
【单选题】
What is Tom’s attitude towards the mobile phone? ___
A. It is very convenient to send text messages.
B. People have to put up with the inconvenience of using mobile phones.
C. He feels important when he uses his mobile phone in public.
D. He cannot live a day without his mobile phone.
【单选题】
Where did Helena start learning Dutch? ___
A. Spain
B. Holland
C. Sri Lanka
D. Indonesia
【单选题】
According to what the broadcaster says about what happened when the blackout occurred, which of the following is not true? ___
A. People crowded the streets of New York.
B. Throngs of people walked across the bridge, screaming and cursing.
C. The blackout stopped subways, buses and turned off traffic lights.
D. Many people are thinking of hitching a ride.
【单选题】
Who is Dr. Burkey? ___
A. The anchor
B. The questioner
C. A student
D. A clinical psychologist.
【单选题】
Which is true about Gandhi’s nonviolence? ___
A. There will be no pains and defeats when people use nonviolence.
B. People should be prepared to die like a soldier when they use nonviolence.
C. Nonviolence means that you have to accept injustice.
D. Soldiers can use violence against violence.
【单选题】
肖东和外祖父是___
A. 直系血亲
B. 直系姻亲
C. 旁系血亲
D. 旁系姻亲
【单选题】
按罗马法的亲等算法,小杨和叔叔的孙子是___
A. 三等亲
B. 四等亲
C. 五等亲
D. 六等亲
【单选题】
甲(男)的外祖母乙是丙(女)的父亲丁的胞姊,因此___
A. 乙是丙的姑母,丁是甲母的舅父
B. 乙是丙的姨母,丙是乙的甥女
C. 乙是丙的舅母,丁是甲母的叔父
D. 乙是丙的婶母,丙是乙的侄女
【单选题】
下列各种亲属关系中,属于直系拟制血亲的有___
A. 外祖父母与外孙子女
B. 养父母与养子女
C. 祖父母与孙子女
D. 继父母与未受其抚养教育的继子女
【单选题】
被告人王某,男,48岁,某村农民。被告人马某,女,45岁,某村农民,系被告人王某之妻。被告人王某与其兄二人按月轮流负担其母(67岁,丧失劳动能力)的生活费。2003月份,被告人王某以收入不足等理由,向其兄提出要求,要其兄独自负担母亲的生活费一年。在向其兄说过此事后,未经其兄、母的同意,被告人王某便拒不负担赡养义务。8月23日早上,其母轮到被告人王某家吃饭,途中与被告人马某相遇,马某便对婆婆进行辱骂,不准其进屋,并将老人推倒在地,8月25日晚上,其母到王某家,见儿子和几个孩子正在吃饭,便哀求儿子给点饭吃。王某未予理睬,老人便自盛了一碗饭,正吃时,马某从外面回来,见状便恶语相加,并冲上去把碗抢下来,随后又将老人打了一顿,赶出门外,8月27日,老人忍无可忍,当众诉冤。之后因生活无着,被迫含愤服毒而死。问:构成虐待罪还是遗弃罪?___
【单选题】
甲男与乙女通过网聊恋爱,后乙提出分手遭甲威胁,乙无奈遂于甲办理了结婚登记。婚后甲得知,乙婚前就患有医学上不应当结婚的疾病且久治不愈,于是甲向法院起诉撤销该婚姻,下列说法正确的是___
A. 法院应判决撤销该婚姻
B. 该案应判决宣告该婚姻无效
C. 对该案的审理应当进行调解
D. 当时人可以对法院的处理结果依法提出上诉
【单选题】
甲男与乙女系出自同一外祖父母的表兄妹,后来乙女被他人收养。根据我国婚姻法的规定,他们___
A. 可以结婚
B. 如果双方不生育子女可以结婚
C. 不能结婚
D. 以上均不正确
【单选题】
某甲与某乙已登记结婚,但未同居,也未举行婚礼。之后某甲后悔与某乙结婚,进行下列( )行为后,婚姻关系才能解除。___
A. 调解
B. 宣布婚姻无效
C. 离婚
D. 撤销结婚登记
【单选题】
甲乙夫妻经协商同意离婚,甲因出差委托丙去离婚登记机关代为办理离婚登记手续,依我国法律,丙___
A. 可以代理
B. 在甲乙双方同意下可以代理
C. 在取得甲授权委托书的情况下可以代理
D. 不能代理
【单选题】
甲乙结婚后购得房屋一套,仅以甲的名字进行了登记。后甲乙感情不和,甲擅自将房屋以时价出售给不知情的丙,并办理了房屋所有权变更登记手续,下列正确的是___
A. 买卖合同有效,房屋所有权未转移
B. 买卖合同无效,房屋所有权已转移
C. 买卖合同有效,房屋所有权已转移
D. 买卖合同无效,房屋所有权未转移