【判断题】
地面的出入线、试车线和库外线宜采用混凝土枕碎石道床或木枕碎石道床
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相关试题
【判断题】
基底坚实、稳定，排水良好的地面车站地段，可采用整体道床
【判断题】
车场库内线应采用短枕式整体道床。根据检修工艺要求，可采用检查坑整体道床或立柱式道床结构
【判断题】
隧道内和高架桥上的道岔区宜采用短枕式整体道床，车场线道岔宜采用碎石道床
【判断题】
正线、出入线、试车线的整体道床与碎石道床间应设轨道弹性过渡段。同一曲线地段宜采用一种道床型式
【判断题】
正线、联络线、出入线和试车线无缝线路地段碎石道床道砟肩宽不应小于400mm，非无缝线路地段道砟肩宽不应小于300mm
【判断题】
隧道内便用预制的混凝土短枕，先进行拼装，然后进行整体浇筑
【判断题】
道口铺面宽度应与道路路面宽度相同，且应不小于2.5m
【判断题】
防爬支撑可以安装在钢轨底下，也可以安装在道心
【判断题】
防爬器与轨枕之间应设承力板，支撑与承力板都应与轨枕密贴
【判断题】
双线或单线的制动地段，均易向制动方向爬行
【判断题】
在曲线轨道上横向力的大小，与曲线半径成反比
【判断题】
在曲线半径较小的混凝土枕地段，如采用保持轨距能力较强的弹性扣件，则可不安装轨距杆和轨撑
【判断题】
双线高架桥跨越城市干道和铁路地段及其以外各20m范围内，在靠近高架桥中线侧的钢轨内侧；单线高架桥上述地段两股钢轨内侧
【判断题】
铺轨时应按钢轨长度误差量配对使用。在每节钢轨上相差量一般不得大于3mm，并在前后、左右相抵消
【判断题】
在曲线地段，轨道外股比内股长，如内外股钢轨都用同一长度的钢轨，内股钢轨接头要比外股接头超前
【判断题】
地铁限界分为车辆限界、设备限界和建筑限界
【判断题】
道岔附带曲线必须设缓和曲线和超高，其曲线半径应小于道岔导曲线半径
【判断题】
正线的最大坡度宜采用30‰，困难地段最大坡度可采用35‰
【判断题】
地下线、高架线、地面车站宜采用无砟道床；地面线宜采用有砟道床
【判断题】
巡检是指对轨道设施的日常维护和日常管理的过程所组织的养护和维修作业
【判断题】
大修是指按周期锁组织进行的成段成批全面更换轨道部件及全面改进轨道线路纵横断面的修理
【判断题】
50kg/m钢轨7号单开道岔的导曲线半径为300m
【判断题】
尖轨跟端在运营地铁列车碾压后出现鞍型磨耗，深度达到1.5mm时，应进行焊补修理或打磨恢复轨头外形轮廓
【判断题】
正线路轨距变化率不大于1/1000，其他线路不大于2/1000
【判断题】
据轨作业时，锯后钢轨长度误差不超过±2mm
【判断题】
钻孔作业时，螺孔允许误差：孔径±1mm，位置±lmm
【判断题】
钻孔作业时，钢轨孔两边应到棱，边缘不得有毛刺；倒棱倒角45°～60°，顺长0.5～1.0mm
【判断题】
安装接头鱼尾板时，曲线线路接头的紧固顺序为：先紧1、6位，再2、5位，最后紧3、4位
【判断题】
安装接头鱼尾板时，直线线路的接头螺栓紧固顺序为：先紧1、6位，再紧3、4位，最后拧紧2、5位
【判断题】
安装接头鱼尾板时，初步紧固后，要用扭矩扳手按顺序扭紧螺帽，调校至所需的扭矩
【判断题】
接头鱼尾板安装完成后的1至2个星期内，工班长应安排人员对该接头螺栓进行复紧
【判断题】
地铁限界分为车辆限界、设备限界和建筑限界
【判断题】
道岔附带曲线必须设缓和曲线和超高，其曲线半径应小于道岔导曲线半径
【判断题】
正线的最大坡度宜采用30‰，困难地段最大坡度可采用35‰
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【单选题】
The destruction of these treasures was a loss for mankind that no amount of money could __________.___
A. stand up to
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The student was just about to ___________ the questions, when suddenly he found the answer.___
A. arrive at
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In Britain, the best season of the year is probably __________ spring.___
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Free medical treatment in this country covers sickness of mind as well as _________ sickness.___
A. normal
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Although he had looked through all the reference material on the subject, he still found it hard to understand this point and her explanation only _________ to his confusion.___
A. extended
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A completely new situation will ___________ when the examination system comes into existence.___
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The manager needs an assistant that he can _________ to take care of problems in his absence.___
A. count on
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C. count up
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We gave out a cheer when the red roof of the cottage came __________ view.___
A. from
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They took ________ measures to prevent poisonous gases from escaping.___
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Doing your homework is a sure way to improve your test scores, and this is especially true _______ it comes to classroom tests.___
A. when
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In developing countries people are _______ into overcrowded cities in great numbers.___
A. breaking
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There are other problems which I don't propose to ____________ at the moment.___
A. go into
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It is quite necessary for a qualified teacher to have good manners and _________ knowledge.___
A. extensive
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I'm not sure whether I can gain any profit from the investment, so I can't make a(n) ______ promise to help you.___
A. exact
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The sports meet, originally due to be held last Friday, was finally ________ because of the bad weather.___
A. set off
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It has been revealed that some government leaders _______ their authority and position to get illegal profits for themselves.___
A. employ
B. take
C. abuse
D. overlook
【单选题】
Shelly had prepared carefully for her biology examination so that she could be sure of passing it on her first ________.___
A. intention
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C. purpose
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【单选题】
The store had to _______ a number of clerks because sales were down.___
A. lay out
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All the students in this class passed the English exam ________ the exception of Li Ming.___
A. on
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Writing is a slow process, requiring _______ thought, time, and effort.___
A. significant
B. considerable
C. enormous
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Lightning is a ______ of electrical current from a cloud to the ground or from one cloud to another.___
A. rush
B. rainbow
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I caught a ________ of the taxi before it disappeared around the corner of the street.___
A. vision
B. glimpse
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Students or teachers can participate in excursions to lovely beaches around the island at regular _________.___
A. gaps
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C. length
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Physics is ________ to the science which was called natural philosophy in history.___
A. alike
B. equivalent
C. likely
D. uniform
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The new appointment of our president _______ from the very beginning of next semester.___
A. takes effect
B. takes part
C. takes place
D. takes turns
