【单选题】
车辆段道岔中的尖轨开口标准值为()。 ___
A. 150
B. 152
C. 155
D. 160
查看试卷,进入试卷练习
微信扫一扫,开始刷题
答案
D
解析
暂无解析
相关试题
【单选题】
正线菱形道岔甲股需要量()处叉心中。 ___
A. 1
B. 2
C. 3
D. 4
【单选题】
车辆段菱形道岔甲股需要量()处叉心中。 ___
A. 1
B. 2
C. 3
D. 4
【单选题】
停车场菱形道岔甲股需要量()处叉心中。 ___
A. 1
B. 2
C. 3
D. 4
【单选题】
正线菱形道岔乙股需要量()处叉心中。 ___
A. 1
B. 2
C. 3
D. 4
【单选题】
车辆段菱形道岔乙股需要量()处叉心中。 ___
A. 1
B. 2
C. 3
D. 4
【单选题】
停车场菱形道岔乙股需要量()处叉心中。 ___
A. 1
B. 2
C. 3
D. 4
【单选题】
正线一副菱形道岔需要量()处叉心中。 ___
A. 8
B. 10
C. 12
D. 14
【单选题】
车辆段一副菱形道岔需要量()处叉心中。 ___
A. 8
B. 10
C. 12
D. 14
【单选题】
停车场一副菱形道岔需要量()处叉心中。 ___
A. 8
B. 10
C. 12
D. 14
【单选题】
正线菱形道岔的轨距为()。 ___
A. 1435
B. 1440
C. 1445
D. 1450
【单选题】
车辆段菱形道岔的轨距为()。 ___
A. 1435
B. 1440
C. 1445
D. 1450
【单选题】
停车场菱形道岔的轨距为()。 ___
A. 1435
B. 1440
C. 1445
D. 1450
【单选题】
正线在进行道岔检查时,在前后50m处要设置()。 ___
A. 红闪灯
B. 照明灯
C. 发电机
D. 什么都不用
【单选题】
停车场在进行道岔检查时,在前后50m处要设置()。 ___
A. 红闪灯
B. 照明灯
C. 发电机
D. 什么都不用
【单选题】
车辆段在进行道岔检查时,在前后50m处要设置()。 ___
A. 红闪灯
B. 照明灯
C. 发电机
D. 什么都不用
【单选题】
正线在进行道岔检修时,在前后50m处要设置()。 ___
A. 红闪灯
B. 照明灯
C. 发电机
D. 什么都不用
【单选题】
位于弦( )的点的矢距叫做正矢 ___
A. 起始处
B. 1/4处
C. 1/2处
D. 终点处
【单选题】
弦长( )的矢距称为外矢距。 ___
A. 起始处
B. 1/4处
C. 1/2处
D. 终点处
【单选题】
曲线的圆顺度用正矢检查,方法是( )的弦线,在钢轨顶面下16mm处测量弦线中点至钢轨工作边的距离。 ___
A. 20 m
B. 30 m
C. 40 m
D. 50 m
【单选题】
曲线的圆顺度用正矢检查,方法是20 m的弦线,在钢轨顶面下( )处测量弦线中点至钢轨工作边的距离。 ___
A. 13mm
B. 14mm
C. 15mm
D. 16mm
【单选题】
量现场正矢前,先用钢尺在曲线外股按计划的桩距一般为( )并划好标记和编出测点号。 ___
A. 10mm
B. 20mm
C. 30mm
D. 40mm
【单选题】
测量时应在轨距线处量,有肥边应在肥边处量,肥边大于( )时应铲除再量。 ___
A. 1mm
B. 1.5mm
C. 2mm
D. 2.5mm
【单选题】
测量现场正矢时每个曲线至少要丈量( )次。取其平均值,精确到mm。 ___
A. 2
B. 3
C. 4
D. 5
【单选题】
测量现场正矢时如果曲线方向很差,应先粗拨( ),但应在新拨动部分经 ___
A. 一次
B. 两次
C. 三次
D. 四次
【单选题】
为平衡离心力的作用,在曲线轨道上设置( )超高。 ___
A. 外轨
B. 内轨
C. 内外轨
D. 过
【单选题】
超高与地铁列车速度的平方成( )。 ___
A. 正比
B. 反比
C. 不成比例
D. 倒数
【单选题】
曲线的最大超高宜为( )。 ___
A. 12Omm
B. 13Omm
C. 14Omm
D. 15Omm
【单选题】
当设置的超高不足时,可允许有不大于( )的欠超高。 ___
A. 60 mm
B. 61 mm
C. 62mm
D. 63 mm
【单选题】
车辆在曲线轨道上抵抗倾覆的稳定程度,取决于( )值的大小。 ___
A. 偏心距
B. 向心力
C. 超高
D. 曲线半径
【单选题】
为保证行车安全,按《地铁设计规范》规定:实设最大超高,不得大于( )。 ___
A. 110mm
B. 120mm
C. 130mm
D. 140mm
【单选题】
我国规定,允许最大未被平衡欠超高,一般为( )。 ___
A. 60mm
B. 65mm
C. 70mm
D. 75mm
【单选题】
我国规定,允许最大未被平衡欠超高,一般为75mm,特殊情况为( )。 ___
A. 80mm
B. 90mm
C. 100mm
D. 110mm
【单选题】
城市轨道交通的现有运营线,最大外轨超高为( )。 ___
A. 100mm
B. 110mm
C. 120mm
D. 130mm
【单选题】
用10m弦测量矢度,允许误差正线及试车线不超过( )。 ___
A. 3mm
B. 4mm
C. 5mm
D. 6mm
【单选题】
用10m弦测量矢度,允许车辆段场线误差不超过( )。 ___
A. 3mm
B. 4mm
C. 5mm
D. 6mm
【单选题】
轨枕与道砟之间存在空隙超过( )称为空板。 ___
A. 5mm
B. 4mm
C. 3mm
D. 2mm
【单选题】
高低是指钢轨顶面沿钢轨方向的( )凹凸不平顺。 ___
A. 横向
B. 侧向
C. 竖向
D. 垂直
【单选题】
轨向是指钢轨头部内侧面沿钢轨方向的( )凹凸不平顺。 ___
A. 横向
B. 竖向
C. 垂直
D. 侧向
【单选题】
最大矢度是弦线与钢轨顶面之间的距离最大者。前后高低差用10m弦量不超过( )。 ___
A. 3mm
B. 4mm
C. 2mm
D. 1mm
【单选题】
处理高低及水平的方法根据高程误差的大小而不同,误差在( )以内,采用垫板作业的方式。 ___
A. 20mm
B. 30mm
C. 40mm
D. 50mm
推荐试题
【单选题】
We teachers do not consider it wise to ___ our students with all sorts of exams, tests and quizzes.
A. load
B. annoy
C. sample
D. explore
【单选题】
He makes his students ___ knowledge through various kinds of interesting activities.
A. study
B. learn
C. achieve
D. acquire
【单选题】
For years, scientists have debated the ___ dangers of building another nuclear plant after the terrible accident.
A. available
B. potential
C. fascinating
D. genuine
【单选题】
It was a worthwhile attempt ___ it failed to achieve its purpose that we had hoped for.
A. in the end
B. now that
C. all at once
D. even though
【单选题】
Travel in space can be very exciting; ___, it can also be boring and lonely at times.
A. so
B. however
C. thus
D. therefore
【单选题】
Politicians should not ___ in business affairs that might affect their political judgment.
A. engage
B. embrace
C. depart
D. treasure
【单选题】
I wish to ___ a master’s degree in electric engineering after I graduate from college.
A. pledge
B. explore
C. pursue
D. approach
【单选题】
There is no greater importance ___ cultivating independence in children.
A. in
B. than
C. of
D. with
【单选题】
He has made it very clear ___ we should observe the new rules.
A. what
B. which
C. those
D. that
【单选题】
It was when I read his letter ___ I realized he had given me huge help.
A. that
B. then
C. before
D. after
【单选题】
Don’t worry too much, Jane. Your son ___ home already. Let’s go back and check it out.
A. returned
B. will return
C. has returned
D. may have returned
【单选题】
I believe friendship is an essential element of making a healthy, ___ life.
A. flexible
B. rewarding
C. wealthy
D. inquisitive
【单选题】
___ they have written about the behaviors of animals is hardly anything new.
A. That
B. This
C. What
D. Which
【单选题】
No other drugs are as good as this one; it must have been based on a(n) ___ formula (配方).
A. enormous
B. stimulating
C. unique
D. overwhelming
【单选题】
Mothers tend to be too ___ toward their children. They should let them see more of the worl D.
A. hopeful
B. protective
C. modest
D. encouraging
【单选题】
The investigation ___ evidence of a large-scale illegal trade in wild birds.
A. uncovered
B. outweighed
C. overwhelmed
D. evolved
【单选题】
Poor Laura! I feel so sorry for her. When she fell, she hurt her arm and, ___, broke her glasses.
A. in advance
B. in addition
C. over time
D. on the other hand
【单选题】
Showing some sense of humor can be a(n) ___ way to deal with some stressful situations.
A. genuine
B. available
C. effective
D. favorite
【单选题】
It will be worth the efforts even if you fail; the rewards you ___ will be great.
A. reap
B. boast
C. assure
D. cultivate
【单选题】
He suggested transporting the supplies by air. But it is absolutely ___, for it will cost too much.
A. unusual
B. uncertain
C. impractical
D. impressive
【单选题】
The newspaper didn’t mention the ___ of the damage caused by the fire.
A. range
B. level
C. extent
D. quantity
【单选题】
Do you ___ her novels as serious literature or as mere entertainment?
A. classify
B. notify
C. simplify
D. justify
【单选题】
He doesn’t ___ of buying a house this year because the bank has refused to lend him any money.
A. afford
B. make the most
C. run out
D. stand a chance
【单选题】
If you don’t ___ cooking today, we can go out to eat at the new restaurant.
A. would like
B. go on with
C. feel like
D. figure out、
【单选题】
Bullying (恃强欺弱) can ___ a climate of fear and anxiety in school, and prevent students from focusing on their schoolwork.
A. keep back
B. give rise to
C. feel like
D. make use of
【单选题】
Science can now ___ many things which were thought to be mysterious by ancient people.
A. care for
B. lay out
C. account for
D. set up
【单选题】
The school has ___ many after-class activity groups for the pupils to make their spare time more colorful.
A. set up
B. set off
C. set out
D. set down
【单选题】
When he was a small kid, he ___ from his peers because he could read fast and remember whatever he rea D.
A. showed off
B. worked out
C. stood out
D. straightened up
【单选题】
The fall in the number of deaths from heart disease is generally ___ improvements in diet.
A. put up with
B. attributed to
C. added to
D. replaced with
【单选题】
We can be partners for now, but ultimately you have to ___ to develop a new software for our project.
A. keep up
B. fire off
C. make sense
D. take the lead
【单选题】
Emotional Intelligence (情商) could be of practical use in many ___ such as how companies decide which job applicant to hire, how parents should raise their children, how schools should teach the students, and so on.
A. aspects
B. disciplines
C. structures
D. opportunities
【单选题】
The teacher should praise students for their correct answers and also suggest ___ possibilities.
A. unlimited
B. unique
C. alternative
D. essential
【单选题】
In some classrooms, desks are arranged in a U-shape, so the teacher can ___ easily with the students.
A. interrupt
B. interact
C. interpret
D. interview
【单选题】
Computer technology ___ individuals to educate themselves and adapt to a constantly changing job market.
A. lets
B. makes
C. enables
D. provides
【单选题】
Our hope for an enjoyable dinner was instantly ___ when the waiter dropped a salad plate on my hea D.
A. spoiled
B. restricted
C. exploded
D. vanished
【单选题】
___ the world has ever seen has occurred in the information and communications technologies.
A. Great a change
B. The great change
C. A greatest change
D. The greatest change
【单选题】
___ so many people around, it wasn’t convenient to have a long talk with him.
A. As
B. When
C. With
D. Since
【单选题】
Alice used to be terribly shy, but working abroad for a year has completely ___ her.
A. solved
B. transformed
C. characterized
D. regulated
【单选题】
Chinese Mandarin (普通话) is ___ for foreigners to learn because the changes in the tone will totally change the meaning of words.
A. difficult
B. accessible
C. competitive
D. easy
【单选题】
Take action on those things that will have the biggest ___ impact on your life with the least amount of effort.
A. portable
B. positive
C. sophisticated
D. moderate