【单选题】
列车运行途中，遇有紧急情况，需要立即停车时可使用（ ）。(1.0分)
A. 缓解阀
B. 截断塞门
C. 折角塞门
D. 紧急制动阀
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相关试题
【单选题】
CCB-Ⅱ型制动机机械制动采用（ ）。(1.0分)
A. 闸瓦制动
B. 轮盘制动
C. 液力制动
D. 动力制动
【单选题】
我国规定( )以下的电压为安全电压。(1.0分)
A. 36V
B. 48V
C. 110V
D. 220V
【单选题】
DK-1型电空制动控制器手柄紧急位，机车制动缸压力（ ）内升至400KPA。(1.0分)
【单选题】
120-1型控制阀滑阀剩余厚度不足( )时更换。(1.0分)
A. 10 mm
B. 12 mm
C. 16 mm
D. 18 mm
【单选题】
109型机车分配阀容积室的压力受（ ）控制。(1.0分)
A. 安全阀
B. 增压阀
C. 滑阀
D. 中继阀
【单选题】
GK型三通阀减速弹簧过弱是导致（ ）不良的主要原因。(1.0分)
A. 减速缓解
B. 减速制动
C. 减速充风
D. 加速充风
【单选题】
104分配阀第一阶段局减时制动主管的压力空气是排向（ ）。(1.0分)
A. 局减室
B. 容积室
C. 紧急室
D. 制动缸
【单选题】
CCB-Ⅱ型制动机无动力回送装置集成在（ ）模块内部。(1.0分)
A. ERCP
B. BPCP
C. 13CP
D. 16CP
【单选题】
在圆销上钻开口销孔，应( )。
A. 在虎钳上夹紧
B. 在平板上压紧
C. 在圆弧槽内压紧
D. 在V形铁内压紧
【单选题】
DK-1型空气制动阀的转换柱塞在电空位时，切断均衡风缸通路，而开通（ ）的通路。(1.0分)
A. 工作风缸
B. 作用管
C. 列车管
D. 请调压阀管
【单选题】
道德作为一种特定的社会意识形态属于( )范畴 。(1.0分)
A. 经济基础
B. 上层建筑
C. 物质关系
D. 以上三者的综合
【单选题】
氧气瓶与乙炔发生器的距离应在( )以上。(1.0分)
【判断题】
制动圆销抽取不少于每批数量的8％进行探伤检查，不得有裂纹。(1.0分)
【判断题】
KZW-4、KZW-4G型空重车自动调整装置，抑制盘润滑脂腔内须注入适量GP-9润滑脂。(1.0分)
【判断题】
在正常使用条件下，扁孔圆销和圆销不得发生断裂、裂损。(1.0分)
【判断题】
一般文件在系统生产工艺流程中有软盘(U盘)存储、硬盘存储、网络服务器存储和光盘存储四种方式。(1.0分)
【判断题】
120型控制阀前盖上局减阀通大气孔处毛毡更换新品。 (1.0分)
【判断题】
JZ-7型空气制动机中单独制动阀单独操纵机车的制动、缓解和保压作用，它与车辆制动机的状态无关。( )(1.0分)
【判断题】
不锈钢组合式集尘器、球芯塞门的阀体无裂损、铸造缺陷不超限的质量保质期为10年。(1.0分)
【判断题】
旋压密封式制动缸的缸体无裂损的质量保质期为12年。(1.0分)
【判断题】
)JZ-7型空气制动机自动制动阀管座单独缓解管10及单独作用管11是经过阀体通往单阀的柱塞阀和调整阀的，与自阀有关。( )(1.0分)
【判断题】
机车撒砂的目的在于改善轮轨接触面的状态，提高粘着系数。( )(1.0分)
【判断题】
位置公差包括定向和定位两部分(1.0分)
【判断题】
)全剖视图的标注方法与半剖视图完全一致(1.0分)
【判断题】
使用外径千分尺时应根据工件被测尺寸选择外径千分尺的规格(1.0分)
【判断题】
钻孔、扩孔、锪孔、铰孔、攻螺纹等操作是钳工最基本的操作工艺，一般可在相应的钻床上完成。(1.0分)
【判断题】
职业道德修养对个人的进步和成长没有帮助。( )(1.0分)
【填空题】
1.“不忘初心、牢记使命”主题教育十二字总要求是___，___，___，___。
【填空题】
2. “不忘初心、牢记使命”主题教育的初心和使命具体内容是：___，___。
【填空题】
3.“不忘初心、牢记使命”主题教育中四个贯穿始终即四项举措是指___，___，___，___。
【填空题】
4. “不忘初心、牢记使命”主题教育中五个目标是___有收获、___受洗礼、___敢担当、___解难题、___作表率。
【填空题】
6. 四个意识是指：___意识、___意识、___意识、___意识。
【填空题】
7. 四个自信是指：___自信、___自信、___自信、___自信。
【填空题】
8. 两个绝对是指：绝对___、对党绝对___
【填空题】
9. 两个责任是指各级党委要把主体责任___，___同志要担负起第一责任人责任。
【填空题】
10. 四个迫切需要是指用___武装全党的迫切需要，推进___的迫切需要，保持___的迫切需要，实现___的迫切需要。
【填空题】
11. 三个结合是指：同完成___结合起来，同做好___、___、___、___、___、___各项工作结合起来，同___结合起来。
【填空题】
14. 中国梦是指：实现___，是近代以来中国人民最伟大的梦想。
【填空题】
15. 四大考验是指：___考验、___考验、___考验、___考验。
推荐试题
【填空题】
59.BIM 是指建筑物在设计和建造过程中，创建和使用的“___”。
【单选题】
The word "wag" (Line 1, Para.1) most probably means _________.
A. move
B. shake
C. bite
D. play
【单选题】
The video cameras were used to catch the dogs' responses because ___________.
A. the dogs were put in the wooden boxes
and tested one at a time
B. it was easier to catch the dogs’s response changes in the tail wagging
C. they enabled the dogs’owners to know
about their dogs’; habit
D. the dogs wagged their tails in different
directions when they were in different
moods
【单选题】
When there are no stimuli, a dog will ___________.___
A. wag to the right
B. no wag at all
C. wag to the left
D. wag to the left and then wag to the right
【单选题】
The purpose of doing the experiment is _________.___
A. to train dogs for their owners
B. to help dogs find companion
C. to help people choose their pet dogs
D. to help people judge the mood of dogs
【单选题】
The underlined word "they" in the last sentence refers to __________.___
A. the trainers
B. the systems
C. the researchers
D. the dogs
【单选题】
The new law passed in Rome will ________.___
A. help improve fishing environment
B. stop people from catching goldfish
C. guarantee better conditions for goldfish
D. discourage keeping goldfish at home
【单选题】
People in Rome believe that the civilization of a city can be judged by _________.___
A. awareness of animal protection
B. exchanges with other cities
C. protection of ancient ruins
D. recognition of animal lovers
【单选题】
The underlined word "compassion" in Para 2 is the closest in meaning to __________.___
A. support
B. pity
C. help
D. love
【单选题】
People may break the law in Turin if they ________.___
A. keep their dogs or cats in cars
B. shut their dogs home all day long
C. raise their cats near ancient ruins
D. feed homeless animals in car parks
【单选题】
We can infer from the passage that _________.___
A. the owners can leave their dogs in hot cars
B. the cat only lives in modern life
C. the new law can prevent cruelty to animals
D. the new law gives recognition to the
people who feed homeless cat
【单选题】
If a person finds getting up early a problem, most probably ________.___
A. he is a lazy person
B. he refuses to follow his own energy cycle
C. he is not sure when his energy is low
D. he is at his peak in the afternoon or evening
【单选题】
Which of the following may lead to family quarrels according to the passage?___
A. Unawareness of energy cycles.
B. Familiar monologues.
C. A change in a family member's energy cycle.
D. Attempts to control the energy cycle of other family members.
【单选题】
If one wants to work efficiently at his low point in the morning, he should __________.___
A. change his energy cycle
B. overcome his laziness
C. get up earlier than usual
D. go to bed earlier
【单选题】
You are advised to rise with a yawn and stretch because it will __________.___
A. help to keep your energy for the day's work
B. help you to control your temper early in the day
C. enable you to concentrate on your routine work
D. keep your energy cycle under control all day
【单选题】
Which of the following statements is NOT true?___
A. Getting off to work with a minimum effort helps save one's energy.
B. Dr. Kletman explains why people reach their peaks at different hours of day.
C. Habit helps a person adapt to his own energy cycle.
D. Children have energy cycles, too.
【单选题】
An effective way to prevent the burnout of young athletes is __________.___
A. to increase their sense of success
B. to make sports less competitive
C. to reduce their mental stress
D. to make sports more challenging
【单选题】
According to the passage sport is positive for young people in that __________.___
A. it can help them learn more about society
B. it enables them to find flaws in themselves
C. it teaches them how to set realistic goals for themselves
D. it can provide them with valuable experiences
【单选题】
Many coaches and parents are in the habit of criticizing young athletes __________.___
A. without realizing criticism may destroy their self-confidence
B. in order to make them remember life's lessons
C. believing that criticism is beneficial for their early development
D. so as to put more pressure on them
【单选题】
According to the passage parents and coaches should __________.___
A. help children to win every game
B. pay more attention to letting children enjoy sports
C. train children to cope with stress
D. enable children to understand the positive aspect of sports
【单选题】
The author's purpose in writing the passage is _________.___
A. to persuade young children not to worry about criticism
B. to stress the importance of positive reinforcement to children
C. to discuss the skill of combining criticism with encouragement
D. to teach young athletes how to avoid burnout
【单选题】
As pointed out at the beginning of the passage, people used to think that air pollution _______.___
A. cause widespread damage in the countryside
B. affected the entire eastern half of the United States
C. had damaged effect on health
D. existed merely in urban and industries areas
【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
