【判断题】
由于埋弧焊属于机械化操作,对焊工的个人防护用品没有什么要求。
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相关试题
【判断题】
埋弧自动对焊机有变速和等速两种送带方式供选用。
【判断题】
《中华人民共和国职业病防治法》的规定:在职业病防治工作上坚持预防为主、防治结合的方针,实行分类管理、综合治理。
【判断题】
推行ISO014000的意义在于企业建立环境管理体系,以减,各项活动所造成的环境污染,节约资源,改善环境质量,促进企业和社会的可持续发展。
【判断题】
焊工在离地面2m及以上的地点进行焊接与切割操作时,称|为登高作业。
【判断题】
焊割化工燃料容器和管道时,必须采取可靠的防爆、防火防毒等技术措施。
【判断题】
有害物进入人体的途径有呼吸道、消化道、皮肤黏膜三方面,而最主要的途径是呼吸道。
【判断题】
在线路设置有防触电安全装置条件下,安全电流可按30m考虑。
【判断题】
患有心脏病、高血压、精神病、癫痫病、酒醉者以及医生证明 0不能登高作业者,一律不得进行登高焊割作业。
【判断题】
职业病的诊断应依据职业病诊断标准,结合职业病危害接触史、工作场所职业病危害因素检测与评价、临床表现和医学检查结果等资料,,进行综合分析与诊断。
【判断题】
从广义上说,重大危险源是指可能导致重大事故发生的危 s险源。
【判断题】
埋弧焊在起重机械、锅炉与压力容器、桥梁、造船、铁路车 1(辆、工程机械、重型机械和冶金机械、核电站结构、海洋结构等制造月部门有着广泛的应用,是当今焊接生产中最普遍使用的焊接方法之一。
【判断题】
激光切割用的割炬必须满足气体喷射的方向和反射镜的光轴同轴。
【判断题】
一个人在皮肤干燥状态下,接触的电压越高,人体电阻意小。
【判断题】
金属的铸造性能主要是指金属在液态时的流动性以及液态金属在凝固过程中的收缩和偏析程度。
【判断题】
埋弧焊时,焊剂的存在仅能隔开熔化金属与空气的直接接触的作用。
【判断题】
每台焊机都应通过单独的分断开关与馈电系统连接。
【判断题】
石墨绀蜗在高温下会使铝热钢液有较多的增碳,铝热焊缝的力学性能得不到保证,因此不能直接用于铝热焊接钢轨。
【判断题】
化学性爆炸,是由于物质在极短时间内完成的化学变化,形成其他物质,同时放出大量热量和气体的现象。
【判断题】
重大事故隐患是指危害和整改难度较大,应当全部或局部停产、停业,并经过一定时间整改治理方能排除的隐患,或者因外部因素影响,致使生产经营单位自身难以排除的隐患。
【判断题】
埋弧焊时,低碳钢的焊接可选用高锰高硅型焊剂,配合H08MnA焊丝。
【判断题】
E4301焊条焊接时生成的粉尘中主要是含锰元素的物质。
【判断题】
在生产过程中,操作者即使操作失误,也不会发生事故或伤害,或者设备、设施和技术工艺本身具有自动防止人的不安全行为的能力称为失误—安全功能。
【判断题】
安全生产管理的目标是减少和控制危害,减少和控制事故,尽量避免生产过程中由于事故所造成的设备损坏、财产损失、环境污染,其他人员损失可以忽略。
【判断题】
等离子弧的能量集中(能量密度可达108～109W/cm²）。
【多选题】
1、对于稳重的功德下列哪个比喻描述的是正确的呢？（多选）
A. 身体稳重如大象；
B. 身体稳重如狮子
C. 说话像仙人般谛实语
D. 说话像大仙般的谛实语
【多选题】
中国佛教有哪八大宗派
A. 相宗
B. 天台宗
C. 华严宗
D. 禅宗
E. 净宗、
F. 密宗八大宗派。
G. 律宗
【单选题】
项目团队成员向项目经理汇报工作。项目收尾之后，项目团队解散并被分配到另一个项目中去。这种组织属于下列哪1种组织结构？
A. 复合型组织
B. 职能型组织
C. 项目型组织
D. 矩阵型组织
【单选题】
一个关键的项目团队成员由于自然灾害影响其所在的城市无法上班，客户期待着可交付成果，且合同中包含着 惩罚条款。项目经理应该怎么做？
A. 检查合同中是否有由于自然灾害而免于处罚的条款
B. 与客户协商处罚例外情况
C. 在不受自然灾害影响的城市聘请一位新成员
D. 更新风险登记册，包括对自然灾害的减轻
【单选题】
一家连锁店的项目经理目前正考虑在地点A或地点B开一间新店。项目经理给出以下信息：项目地点A：投资回报期为18个月，净现值为-250。项目地点B：投资回报期为24个月，净现值为300。项目经理将会向选择委员会推荐哪个项目？
A. 项目地点A,因为投资回报期比项目地点B短
B. 项目地点B,因为净现值为正数
C. 项目地点A,因为净现值为负数
D. 项目地点B,因为投资回报期比项目地点A长
【单选题】
你是一名大型咨询公司的项目经理，你的上司要你提供公司应采纳哪个项目的意见。项目A的内部收益率(IRR) 为12°%,项目B的预计投资收益率(BCR)为1.3,项目C的机会成本为75,000美元，项目D的投资回收期为 6个月。假如你要根据上述信息做出选择，那么你会选择哪个项目？
A. 项目 A
B. 项目 B
C. 项目 C
D. 项目 D
【单选题】
你已经铺设了一半的网络。在美国有300个地点，另外20个在英国。一软件卖方对一些正在安装的设备刚 刚发布了一主要的软件升级，升级可以给客户他们所需的功能，这些功能在项目开始时是不具备的。在这种情况下, 采取的最好措施是什么？
A. 继续按计划进行，你的客户没有要求变更
B. 告诉客户升级和其对项目时间以及功能的影响
C. 实施变更并必要调整进度，因为这符合客户的最初要求
D. 在剩余的地点实施变更，继续按计划进行
【单选题】
项目经理目前正在从事一个关键的高收益项目。他们发现客户正在开展一些非法业务，且项目可能会间接受到 影响，这些事实已经通知高层管理，但是高层管理坚持继续从事项目，为了公司的利益交付项目。项目经理应该怎 么做？
A. 请求高层管理让其退出这个项目，从事另一个项目。
B. 辞职，因为高层管理不听取他们的意见，即使他们如实汇报客户的业务。
C. 继续这个项目，因为高层管理对客户的业务很满意。
D. 继续这个项目，因为高层管理是以公司的利益做决定的。
【单选题】
一位经验不足的项目经理被分配到了一个新项目上做项目经理，因为将来他所从事的项目为矩阵 组织.。那么他所期望的沟通形式为：
A. 简单的
B. 公开但准确的
C. 复杂的
D. 难以自动操作
【单选题】
一家组织的经验教训数据库表明过去的重大项目问题是质量失败，为确保质量，项目经理制定质量保证计划时 决定做的更彻底，项目经理应该怎么做？
A. 根据项目的范围和需求制定质量管理计划
B. 将所有质量控制过程纳入项目中
C. 在项目核对单中包含来自过往项目所有的经验教训
D. 在风险登记册中添加一个新风险
【单选题】
在开始进行一个已经批准工作包的工作之后，一名团队成员了解到项目管理计划未更新，该团队成 员应该怎么做？
A. 提交变更请求，以更新项目管理计划
B. 推迟工作，直到项目经理更新项目管理计划
C. 继续工作，并要求项目经理更新项目管理计划
D. 请求发起人许可在等待项目管理计划更新的同时继续工作
推荐试题
【单选题】
As to the greenhouse effect, the author ________.___
A. share the same view with the scientist
B. is uncertain of its occurrence
C. rejects it as being ungrounded
D. thinks that it will destroy the world soon
【单选题】
The underlined word "offset" in the second paragraph could be replaced by _________.___
A. slip into
B. make up for
C. set up
D. catch up with
【单选题】
It can be concluded that ____________.___
A. raising the world's temperature only a few degrees would not do much harm to life on earth
B. lowering the world's temperature merely a few degrees would lead major farming areas to disaster
C. almost no temperature variations have occurred over the past decade
D. the world's temperature will remain constant in the years to come
【单选题】
This passage is primarily about __________.___
A. the greenhouse effect
B. the burning of fossil fuels
C. the potential effect of air pollution
D. the likelihood of a new ice age
【单选题】
What is the major function of paragraph 1?___
A. To arouse the reader's concern.
B. To introduce the theme of the whole passage.
C. To summarize the whole passage.
D. To state the primary uses of TV.
【单选题】
Television, as a source of entertainment, is ________.___
A. not very convenient
B. very expensive
C. quite dangerous
D. relatively cheap
【单选题】
Why are some people against TV?___
A. Because TV programs are not interesting.
B. Because TV viewers are totally passive.
C. Because TV prices are very high.
D. Because TV has both advantages and disadvantages.
【单选题】
One of the most obvious advantages of TV is that _________.___
A. it keeps us informed
B. it is very cheap
C. it enables us to have a rest
D. it controls our lives
【单选题】
According to the passage, whether TV is good or not depends on ___________.___
A. its quality
B. people's attitude towards it
C. how we use it
D. when we use it
【单选题】
What regulation was issued by New York State concerning beverage containers?___
A. A fee should be charged on used containers for recycling.
B. Throwaways should be collected by the state for recycling.
C. Consumers had to pay for beverage containers and could get their money back on returning them.
D. Beverage companies should be responsible for collecting and reusing discarded plastic soda bottles.
【单选题】
The returned plastic bottles in New York used to _____________.___
A. be turned into raw materials
B. be separated from other rubbish
C. have a second-life value
D. end up somewhere underground
【单选题】
The key problem in dealing with returned plastic beverage containers is ______________.___
A. how to reduce their recycling costs
B. to sell them at a profitable price
C. how to turn them into useful things
D. to lower the prices for used materials
【单选题】
Recycling has become the first choice for the disposal of rubbish because ______________.___
A. recycling causes little pollution
B. other methods are more expensive
C. recycling has great appeal for the jobless
D. local governments find it easy to manage
【单选题】
It can be concluded from the passage that ____________.___
A. recycling is to be recommended both economically and environmentally
B. local governments in the U.S. can expect big profits from recycling
C. rubbish is a potential remedy for the shortage of raw materials
D. landfills will still be widely used for waste disposal
【单选题】
The author chose to study engineering at a small liberal-arts university because he ________.___
A. intended to be a sensible student with noble ideals
B. wanted to be an example of practicality and rationality
C. intended to be a combination of engineer and humanist
D. wanted to coordinate engineering with liberal-arts courses in college
【单选题】
According to the author, by interacting with people who study liberal arts, engineering students can __________.___
A. broaden their horizons
B. receive guidance in their careers
C. become noble idealists
D. balance engineering and the liberal arts
【单选题】
In the eyes of the author, a successful engineering student is expected ______________.___
A. to be imaginative with a value system to guide him
B. to be a technical genius with a wide vision
C. to have an excellent academic record
D. to be wise and mature
【单选题】
The author's experience shows that he was ________.___
A. creative
B. ambitious
C. irrational
D. unrealistic
【单选题】
The underlined word "they" in "... together they threaten to confuse." (Para.5) refers to ____________.___
A. practicality and rationality
B. engineering and the liberal arts
C. reality and noble ideals
D. flexibility and a value system
【单选题】
It can be learned from the passage that the Ouchidas' house __________.___
A. failed to meet energy conservation standards
B. was designed and constructed in a scientific way
C. is well worth the money spent on its construction
D. is almost faultless from the point of energy conservation
【单选题】
What made the Ouchidas' new house a horrible dream?___
A. Lack of fresh air.
B. Gas leakage in the kitchen.
C. The newly painted walls.
D. Poor quality of building materials.
【单选题】
The underlined word "accentuate" (Para. 3) most probably means "________".___
A. worsen
B. accelerate
C. relieve
D. improve
【单选题】
Why were cracks in old houses not a big concern?___
A. Because environmental protection was given top priority.
B. Because indoor cleanness was not emphasized.
C. Because they were technically unavoidable.
D. Because energy used to be inexpensive.
【单选题】
This passage is most probably taken from an article entitled "_________".___
A. Energy Conservation
B. Air Pollution Indoors
C. House Building Crisis
D. Traps in Building Construction
【单选题】
We need to plan ahead in order to ___________.___
A. keep a record of all the events
B. better organize our activities
C. store everything in our head
D. pile up little tasks neatly
【单选题】
Strategic times are best for us to ___________.___
A. save energy
B. check e-mails
C. study efficiently
D. organize activities
【单选题】
Which of the following could be used as a motivation to do our assignments?___
A. Remembering our urgent tasks.
B. Any activities we're eager to do.
C. Taking a break in the afternoon.
D. The promise to study efficiently.
【单选题】
What can help us to keep refreshed throughout the day?___
A. Doing some physical exercise.
B. Taking a short nap in the afternoon.
C. Rushing through some assignments.
D. Playing a game of chess with a friend.
【单选题】
Which of the following could be the best title for this article?___
A. Study Habits and Time Management
B. Business Management and Leadership
C. University Education and Campus Life
D. Life Goals and Academic Development
【单选题】
It is implied in the text that it is hard to ________.___
A. carry life learning though
B. tell the nature of life learning
C. learn without going to school
D. find a specially trained teacher
【单选题】
According to the author, the schooling framework often ________.___
A. produces slow students with poor memories
B. ignores some parts of the official curriculum
C. fails to provide enough knowledge about life
D. gives little care to the quality of teaching materials
【单选题】
Life learners recognize that learning will not be difficult if they are _________.___
A. clear about why to learn
B. careful to make a time table
C. able to respect other people
D. cautious about any mistakes
【单选题】
According to the author, life learning ________.___
A. could prevent one from running risks
B. could be a road full of trials and errors
C. makes a kid independent of his parents
D. teaches a kid how to avoid being scorned
【单选题】
Through life learning, children ________.___
A. will grow without the assistance from parents
B. will learn to communicate with the real world
C. will be driven to learn necessary life knowledge
D. will be isolated from the negative side of society
【单选题】
A good title for this passage is __________.___
A. Sleep
B. Good Health
C. Dreams
D. Work and Rest
【单选题】
The word drowsy in the last paragraph means __________.___
A. sick
B. stand up
C. asleep
D. a little sleepy
【单选题】
This passage suggests that not getting enough sleep might make you ___________.___
A. dream more often
B. have poor health
C. nervous
D. breathe quickly
【单选题】
During REM, ___________ .___
A. your eyes move quickly
B. you dream
C. you are restless
D. both A and B
【单选题】
The average number of hours of sleep that an adult needs is __________.___
A. approximately six hours
B. around ten hours
C. about eight hours
D. not stated here
