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浙江省2013年4月自学考试高速公路试题_第2页

来源:考试网 [ 2014年1月6日 ] 【大 中 小】

9.若回旋线参数为A=400,则距回旋线起点400m处的曲率半径为______m。

A.200                                                            B.300

C.400                                                               D.600

10.下列互通式立交属全互通式立交的有

A.喇叭形                                                       B.菱形

C.部分苜蓿叶                                                  D.部分定向式

11.下列竖曲线是凹形竖曲线的是

A.i1=3%,i2=4%                                        B.i1=4%,i2=3%

C.i1=3%,i2=2%                                        D.i1=-2%,i2=-3%

12.下列损坏不属于沥青路面的损坏的是

A.车辙                                                          B.反射裂缝

C.低温开裂                                                      D.传力杆失效

13.我国高速公路测设中的缓和曲线按传统选用

A.三次抛物线                                                B.双纽线

C.回旋线                                                         D.正弦曲线

14.某山岭区二级公路,变坡点桩号为K5+030.00,i1=5%,i2=-3%,竖曲线长为160m,则竖曲线半径为______m。

A.2000                                                          B.2400

C.3200                                                             D.4000

15.隔离设施安装高度一般为______左右。

A.1.40~1.60m                                               B.1.50~1.70m

C.1.60~1.80m                                                 D.1.70~1.90m

16.设中央分隔带宽度为3m,右路缘带宽度为0.75m,则中间带的宽度为______m。

A.3.75                                                           B.4.5

C.2.25                                                              D.6.75

17.在高速公路平面定线中,______往往是首选的要素。

A.直线                                                          B.大半径圆曲线

C.缓和曲线                                                   D.小半径圆曲线

18.下列指标用于评价路面结构状况的是

A.IRI                                                             B.PCI

C.SRV                                                              D.SFC

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