【判断题】
调整辙叉及护轨轮缘槽尺寸，使其符合标准可整治辙叉轨距不合标准。
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相关试题
【判断题】
打磨作用边“肥边"，焊补伤损心轨、翼轨可整治辙叉轨距不合标准。
【判断题】
整修查照间隔、护背距离，使其符合规定可整治辙叉轨距不合标准。
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应力放散就是在设计锁定轨温范围内，将无缝线路全长扣件、防爬器等全部松开，让它自由伸缩，把钢轨内部的温度应力全部放散掉，然后再重新锁定线路。
【判断题】
应力放散改变了长钢轨原来的长度，不会改变锁定轨温。
【判断题】
线路爬行、轨缝挤瞎是发生胀轨的基本原因。
【判断题】
线路上有硬弯轨、方向不良及道砟不足是助长发生胀轨的原因。
【判断题】
在瞎缝地段进行减弱或破坏线路稳定的养路工作可能造成胀轨跑道。
【判断题】
曲线两端切线方向不变，即曲线始终点拨量为1。
【判断题】
曲线上某一点拨道时，其相邻测点在长度上会随之移动。
【判断题】
加强辙叉底部捣固可预防、整治辙叉垂直磨耗和压渍。
【判断题】
借助于更换岔枕的机会，彻底加强辙叉底捣固可预防、整治辙叉垂直磨耗和压渍。
【判断题】
在辙叉底岔枕顶面垫胶垫，以缓冲受力可预防、整治辙叉垂直磨耗和压渍。
【判断题】
用竖螺栓扣板把辙叉固定在垫板上，加强辙叉的整体稳定性可预防、整治辙叉垂直磨耗和压渍。
【判断题】
可在辙叉部位的岔枕上安设特制铁座，用弹条I型扣件固定辙叉位置可预防、整治辙叉垂直磨耗和压渍。
【判断题】
做好道岔前后60m线路的整体维修，经常保持轨面平、方向顺可整治道岔方向不良。
【判断题】
做好直股基本轨方向，拨好道岔位置可整治道岔方向不良。
【判断题】
弯好曲基本轨弯折点，做好轨距加宽递减可整治道岔方向不良。
【判断题】
检查确认基本轨既有弯折量，按标准做好弯折段长度和矢量可整治道岔方向不良。
【判断题】
加强捣固作业，除按规定捣固外，还应根据道岔构造的特点进行适当加强可整治道岔方向不良。
【判断题】
补充夯实道床，道岔转辙部分设置转辙杆、连接杆，各枕木孔道砟应比岔枕顶面底70～80mm，并夯实道床可整治道岔方向不良。
【判断题】
加强各部分零件的养护维修可整治道岔方向不良。
【判断题】
加工制造30mm范围内刨切长度不够会造成尖轨与基本轨不密贴。
【判断题】
尖轨顶铁过长，补强板螺栓凸出会造成尖轨与基本轨不密贴。
【判断题】
转辙机位置与尖轨动作拉杆位置在同一水平线上会造成尖轨与基本轨不密贴。
【判断题】
基本轨弯折点有误会造成尖轨与基本轨不密贴。
【判断题】
基本轨工作边及尖轨非工作边有“肥边"造成假密贴会造成尖轨与基本轨不密贴。
【判断题】
基本轨横向移动会造成尖轨与基本轨不密贴。
【判断题】
基本轨或尖轨本身有硬弯会造成尖轨与基本轨不密贴。
【判断题】
基本轨、轨撑、滑床板挡肩之间存在“三道缝"会造成尖轨与基本轨不密贴。
【判断题】
加强防爬锁定是防止钢轨过分收缩和钢轨折断后轨缝拉开太大的有利措施。
【判断题】
钢轨被锁定之后，除长轨条两端的伸缩区之外，其余部分(之间的固定区)的钢轨长度不能随轨温变化(伸缩)。
【判断题】
为了满足车辆检修库内检修工作的需要，轨下结构设计为坑道式的结构，称为巡检坑。
【判断题】
半径为500m及以上的曲线和道岔导曲线，亦可安装轨距杆和轨撑两种加强设备。
【判断题】
出入线地面段碎石道床大坡度地段为1760根/km。
【判断题】
停车场除工艺特殊要求地段一般为1448对（根）/km。
【判断题】
道床顶面高程以轨枕承轨面高出道床顶面40～50mm。
【判断题】
整体道床根据轨枕间距分段布置，一般地段每12m左右设一道宽20mm的伸缩缝。
【判断题】
整体道床U型槽及洞口48m范围内、联络通道前后各24m范围内每6m左右设一道伸缩缝。
【判断题】
整体道床隧道结构变形缝处道床也应设置伸缩缝，伸缩缝应位于两根枕中间。
推荐试题
【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
【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
