【单选题】
在正线上当曲线半径等于或小于___时，圆曲线与直线间应设置缓和曲线。
A. 1500m
B. 2000m
C. 2500m
D. 3000m
查看试卷，进入试卷练习
微信扫一扫，开始刷题
相关试题
【单选题】
在正线上当曲线半径___2000m时，圆曲线与直线间应设置缓和曲线。
A. 等于或小于
B. 等于
C. 等于或大于
D. 大于
【单选题】
圆曲线的最小长度不应小于___。
A. 14m
B. 15m
C. 16m
D. 17m
【单选题】
相邻曲线间的的夹直线的长度，在有缓和曲线时，不小于___。
A. 15m
B. 14m
C. 13m
D. 12m
【单选题】
全轴距系指一节车辆第一位轴至最后位轴之间距离，目前我国地铁车辆的全轴距最大不超过___。
A. 10m
B. 15m
C. 20m
D. 25m
【单选题】
道岔应设在直线地段，道岔端部至曲线端部的距离不宜小于___，车场线可以减少到3m。
【单选题】
正线与联络线上曲线半径小于___时，直线与圆曲线间要设缓和曲线。
A. 1300m
B. 1400m
C. 1500m
D. 1600m
【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. 100mm
B. 110mm
C. 120mm
D. 130mm
【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. 90mm
B. 95mm
C. 100mm
D. 150mm
【单选题】
城市轨道交通的现有运营线，最大外轨超高为___。
A. 90mm
B. 100mm
C. 110mm
D. 120mm
【单选题】
在困难条件下，车场线上的曲线轨距加宽，允许按不大于___。递减曲线轨道的最大轨距，应能够确保行车安全，不使之掉道。
【单选题】
曲线段，两股钢轨接头相错量不得超过___加所采用的缩短轨缩短量的一半。
A. 40mm
B. 50mm
C. 60mm
D. 70mm
【单选题】
规定按线路允许速度检算，未被平衡欠超高不得大于___，否则应进行调整。
A. 110mm
B. 120mm
C. 130mm
D. 140mm
【单选题】
联络线、出入段（场）线的最大坡度不宜大于___(均不考虑各种坡度折减值)
A. 10‰
B. 20‰
C. 30‰
D. 40‰
【单选题】
线路坡段长度不宜小于远期地铁列车长度，并应满足相邻竖曲线间的夹直线长度的要求，其夹直线长度不宜小于___。
A. 40m
B. 50m
C. 60m
D. 70m
【单选题】
隧道内和路堑地段的正线最小坡度不宜小于___。
【单选题】
地面和高架桥上正线最小坡度为___。
A. 1‰
B. 2‰
C. 3‰
D. 不受限制
【单选题】
车站站台计算长度段线路应设在___坡道上。
【单选题】
地面和高架桥上的车站站台计算长度段线路宜设在___坡道上。
【单选题】
道岔宜设在不大于___的坡道上。
A. 5%。
B. 4%。
C. 3%。
D. 2%。
【单选题】
最小坡段长度为一地铁列车长，取为___m。
A. 110
B. 120
C. 130
D. 140
【单选题】
坡度值用每___m的水平距离与线路升高或降低的数值之比的千分率来表示。
A. 3000
B. 2000
C. 1000
D. 500
【单选题】
隧道内折返线和存车线，既要保持隧道内最小的排水坡度，又需满足停放车辆和检修作业的要求，一般选取___。
A. 10‰
B. 20‰
C. 30‰
D. 40‰
【单选题】
坡段与坡段相连，规范规定，相邻两坡段的坡度值，二者代数差大于等于___时，必须在变坡点设置竖曲线。
【单选题】
竖曲线半径，一般情况下区间内为___m。
A. 2000
B. 3000
C. 4000
D. 5000
【单选题】
竖曲线半径困难地段为___m。
A. 1000
B. 2000
C. 3000
D. 4000
【单选题】
竖曲线半径站端为___m。
A. 2000
B. 3000
C. 4000
D. 5000
【单选题】
竖曲线半径辅助线为___m。
A. 2000
B. 3000
C. 4000
D. 5000
【单选题】
车站站台计算长度内和道岔范围内___竖曲线。
A. 不得设置
B. 可设置一条
C. 可设置两条
D. 可设置三条
【单选题】
钢轨垂直磨耗在钢轨顶面宽___测量。
A. 2/3处（距钢轨外侧）
B. 1/2处（距钢轨外侧）
C. 1/3处（距钢轨外侧）
D. 1/4处（距钢轨外侧）
【单选题】
___不是25m钢轨曲线标准缩短轨。
A. 24.96m短轨
B. 24.92m短轨
C. 24.88m短轨
D. 24.84m短轨
【单选题】
60kg/m钢轨高___。
A. 152mm
B. 164mm
C. 176mm
D. 192mm
【单选题】
不同类型的钢轨互相联结时，应使用___。
A. 鱼尾型夹板
B. 平直夹板
C. 双头式夹板
D. 异性夹板
【单选题】
10.9级高强度螺栓抗拉强度为___。
A. 660MPa
B. 830MPa
C. 940MPa
D. 1040Mpa
【单选题】
60kg/m钢轨的构造轨缝是___。
A. 16mm
B. 17mm
C. 18mm
D. 20mm
【单选题】
钢轨总磨耗等于垂直磨耗与___之和。
A. 侧磨磨耗
B. 1/2侧面磨耗
C. 1/3侧面磨耗
D. 1/4侧面磨耗
【单选题】
钢轨侧面磨耗在距踏面（标准断面下）___测量。
A. 14mm范围内
B. 14mm处
C. 16mm范围内
D. 16mm处
【单选题】
在正线线路上个别插入短轨，其长度不得短于___。
A. 10m
B. 8m
C. 6m
D. 4.5m
【单选题】
曲线实设最大超高，在单线上不得大于___。
A. 125mm
B. 135mm
C. 145mm
D. 150mm
【单选题】
轨头下颏透锈长度超过___为重伤钢轨。
A. 20mm
B. 30mm
C. 40mm
D. 50mm
推荐试题
【填空题】
2.Citibank picked the chief executive of Etang.com as its first Chinese customer Thursday to open an account at its new branch in the _______Pease Hotel along Shanghai’s fabled waterfront.
【填空题】
3.The United States last Wednesday _________tariffs关税 of up to 30 percent on a range of foreign steel imports to help protect its domestic国内的industry.
【填空题】
4.Although he was raised as a Christian, he’s not really very _________.
【填空题】
5.You can distinguish between frogs ands toads蟾蜍 in the following way: frogs have _________bodies, long limbs, and a smooth skin, and toads have stouter bodies, short limbs, and dry skin.
【填空题】
6.From the airplane window I could see a _________of city streets.
【填空题】
7.Aunt Pat smiled at her little niece and _________her to eat.
【填空题】
8.Dr. Rich Hamilton is planning his own World Wide Web _________on the Internet to provide assistance to anyone who asks for medical help.
【填空题】
9.It is difficult to estimate the number of people doing part-time jobs _________
【填空题】
10.The president _________his foreign minister, Mr. Burns, to act as representative to the international conference to be held in Tokyo next month.
【填空题】
11.Advances in telecommunications have meant that it is just as easy to work from a computer _________at home as it is from a town center office.
【填空题】
12.Until the new gym is built, you have no option but _________existing buildings which may or may not suit your immediate目前的requirements.
【填空题】
1.According to some scientists, global warming _________the survival of the whole human race.
【填空题】
2.The number of visitors from parts of Scotland not including the Edinburgh area was, in fact, relatively small19%, and exceeded the number of overseas visitors16%_________.
【填空题】
3.The early Spaniards established a chain of mission _________the local population along the San Antonio River.
【填空题】
4.It was common practice then that when the store owners wanted to go on vacation they simply _________
【填空题】
5.As they didn’t have relatives or friends there they often _________around nearby malls when they got bored.
【填空题】
6.To make a birthday card, you can simply cut out some funny or pretty pictures from magazines, _________them _________a piece of card and then write your message inside.
【填空题】
7.She picked up the receiver and, _________ asking the caller to hold on, went off to tell Jack that he was wanted on the phone.
【填空题】
8.To relax himself for a little while, he rose from the computer desk, walked across the room towards the window and stretched both arms upwards and _________.
【填空题】
9.The new product has a pair of small loudspeakers fitted inside, which you can easily _________ your computer’s sound card.
【填空题】
10.Music in fact is a _________language of a non-verbal nature which is rich in expression.
【填空题】
11.This _________is designed to show at a glance how many rooms have been rented out and how many are still available.
【填空题】
12._________ glorious sunshine, the boundless stretch of corn fields looked an impressive sight.
【填空题】
1.The cook put the meat on a plate, _________it with salt and pepper, wrapped up the plate in aluminum foil铝箔 and then placed it in the oven to roast.
【填空题】
2.Every waking moment we talk to ourselves about the things we experience. Our self-talk, the thought we communicate to ourselves, _________control the way we feel and act.
【填空题】
3.John made everyone laugh when he got the words _________and referred to himself as “my husband’s wife”.
【填空题】
4.You can’t live a perfect day without doing something for someone who will perhaps never be able to _________you.
【填空题】
5.Because the Earth is a sphere, sailors _________only can view other ships to a distance of about 13 miles before those ships seem to disappear into the horizon.
【填空题】
6.Johnson dismissed _________ideas lightly as no good on several occasions.
【填空题】
7.One tends to believe whatever one repeats to oneself sufficiently often, whether the _________be true or false.
【填空题】
8.Susan told me numerous times how her sister _________children.
【填空题】
9.I don’t know what my roommate is up to because he does everything _______________, either when I am away or when I am asleep.
【填空题】
10.For economic reasons, shipbuilders have designed vessels___ that can be loaded and _________in a minimum amount of time with minimum labor.
【填空题】
11.Laugh, and the world laughs with you; _________, and you weep alone.
【填空题】
12.A national debate is now _________about the manner in which we as a society should protect our natural resources.
【单选题】
___是湿润的纤维脱水后形成的薄片型材料。
A. 安全线
B. 安全纤维
C. 纸张
D. 水印
【单选题】
纸张最核心的材料是___,在它的基础上再通过添加其他配料使其具备不同的性质。
A. 纤维
B. 安全纤维
C. 纸浆
D. 水印
【单选题】
安全纸张以___为主要的纤维来源,占90%以上。
【单选题】
___是指在造纸生产过程中用改变纸浆纤维密度的方法制成的有明暗纹理的图形或文字。
A. 安全线
B. 安全纤维
C. 水印
D. 防伪彩点
【单选题】
水印只有在___的条件下才能被清楚地观察到。
