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【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
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答案
D
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相关试题
【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
【单选题】
当起道量超过___时,必须申报供电系统的接触网部门予以配合。
A. 20mm
B. 30mm
C. 40mm
D. 50mm
【单选题】
线路上先是左股钢轨高,后是右股钢轨高,当前后两点的水平正负误差的代数差超过___时为三角坑。
A. 2mm
B. 3mm
C. 4mm
D. 5mm
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