【单选题】
不符合我国汽车爬坡度试验要求的是___
A. 长度不小于25米
B. 小于30%的坡道路面可用沥青铺装
C. 大于30%的坡道路面应为水泥路面
D. 爬坡时要求接合汽车最高档，节气门全开
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答案
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解析
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相关试题
【单选题】
下面哪项不符合制动试验的要求？___
A. 试验路段应为干净、平整、坡度不大于1%的硬路面
B. 风速应小于5m/s
C. 路面附着系数不宜小于0.72-0.75
D. 分别在气温小于0℃和大于0℃的情况下进行
【单选题】
关于制动过程出现的情况，哪种说法是错误的？___
A. 前轮先抱死拖滑，然后后轮抱死拖滑，是稳定工况，但制动时汽车会丧失转向能力
B. 后轮先抱死滑移，然后前轮抱死滑拖 ，是不稳定工况，中、后轴可能出现侧滑
C. 前、后轮同时抱死拖滑，可避免后轴侧滑，前轮在最大制动强度下才会失去转向能力
D. 前轮先抱死拖滑，然后后轮抱死拖滑，附着条件利用较好
【单选题】
指出下面错误的一项。___
A. 汽车在原地、小半径弯道低速行驶时，要防止转向盘过于沉重
B. 在高速行驶时，转向盘力不宜过小，而应维持一定的数值
C. 转向系的刚度应低些为好
D. 动力转向系应具有随车速而变化的转向盘力特性
【单选题】
下面哪种说法是错误的？___
A. 压力阻力分为形状阻力、干扰阻力、摩擦阻力和内循环阻力
B. 坡度阻力和道路阻力合在一起称为道路阻力
C. 无级式变速器传动比是不随时间发生变化的
D. 汽车加速行驶时，不仅平移质量产生惯性力，旋转质量也要产生惯性力偶矩
【单选题】
下面正确的说法是___
A. 汽车的动力性只受驱动力的约束
B. 驱动轮的附着力在硬路面上与驱动轮的法向反作用力不成正比
C. 在极高车速下，即使是良好路面也不能满足附着性能的要求
D. 对于前轮驱动的汽车同，其前驱动轮的附着率应大于地面的附着系数
【单选题】
非透过性液力变矩器___
A. 是泵轮转矩系数随转速改变的液力变矩器
B. 泵轮转矩与泵轮转速的关系是一组曲线
C. 发动机节气门不变，外界阻力有变化，发动机转速也会变化
D. 汽车行驶条件的改变，即负载对泵轮转速无任何影响
【单选题】
关于燃油经济性，错误的说法是___
A. 等速百公里燃油消耗量曲线可用来评价汽车的燃油经济性
B. 等速百公里燃油消耗量能全面反映汽车的实际运行情况
C. 循环工况一般多规定在室内汽车底盘测功机上进行试验
D. 用碳平衡法不可进行燃油消耗量的计算
【单选题】
关于混合动力电动汽车错误的说法是___
A. 混合动力电动汽车续驶里程短
B. 混合动力电动汽车价格贵、体积大
C. 混合动力电动汽车可以选择小型的发动机，使其工作点处于高效率区
D. 混合动力电动汽车可以在停车等候或低速滑行等工况下关闭内燃机，节约燃油
【单选题】
不符合我国汽车爬坡度试验要求的是___
A. 长度不小于25米
B. 小于30%的坡道路面可用沥青铺装
C. 大于30%的坡道路面应为沥青混凝土
D. 爬坡时要求接合汽车最低档，节气门全开
【单选题】
下面哪项不符合制动试验的要求？___
A. 试验路段应为泥泞、不平、坡度大于1%的硬路面
B. 风速应小于5m/s
C. 路面附着系数不宜小于0.72-0.75
D. 气温在0-35℃
【单选题】
关于制动过程出现的情况，哪种说法是错误的？___
A. 前轮先抱死拖滑，然后后轮抱死拖滑，是稳定工况，附着条件利用较好
B. 后轮先抱死滑移，然后前轮抱死滑拖 ，是不稳定工况，中、后轴可能出现侧滑
C. 前、后轮同时抱死拖滑，可避免后轴侧滑，前轮在最大制动强度下才会失去转向能力
D. 后轮先抱死滑移，然后前轮抱死滑拖 ，附着利用率低
【单选题】
指出下面错误的一项是___
A. 汽车在原地、小半径弯道低速行驶时，要防止转向盘过于轻松
B. 在高速行驶时，转向盘力不宜过小，而应维持一定的数值
C. 转向系的刚度应高些为好
D. 动力转向系应具有随车速而变化的转向盘力特性
【单选题】
下面错误的说法是___
A. 汽车的动力性只受驱动力的约束
B. 驱动轮的附着力在硬路面上与驱动轮的法向反作用力成正比
C. 在极高车速下，即使是良好路面也不能满足附着性能的要求
D. 四轮汽车的等效坡度超过单轴汽车
【单选题】
对于透过性液力变矩器___
A. 泵轮转矩系数不是常数值
B. 泵轮转矩与泵轮转速的关系是一条抛物线
C. 发动机节气门不变，外界阻力有变化，发动机转速不会变化
D. 汽车行驶条件的改变，即负载对泵轮转速无任何影响
【单选题】
不符合我国汽车路试要求的是___
A. 应在混凝土或沥青路面的直线路段上进行
B. 纵向坡度在1%之间
C. 动力试验时汽车载荷为满载
D. 轮胎的充气压力误差不超过10KPa
【单选题】
有关发动机功率的选择，错误的说法是___
A. 先从保证汽车预期的最高车速来初步选择发动机应有功率
B. 还利用现代汽车统计数据初步估计汽车比功率来确定发动机应有功率
C. 对最小比功率没有明确的规定
D. 货车可以根据同样总质量与同样类型车辆的比功率统计数据，初步选择发动机功率
【单选题】
下面哪项不符合制动试验的要求？___
A. 试验路段应为干净、平整、坡度不大于1%的硬路面
B. 风速应大于5m/s
C. 路面附着系数不宜小于0.72-0.75
D. 气温在0-35℃
【单选题】
关于制动过程出现的情况，哪种说法是错误的？___
A. 前轮先抱死拖滑，然后后轮抱死拖滑，是稳定工况，但制动时汽车会丧失转向能力
B. 后轮先抱死滑移，然后前轮抱死滑拖 ，附着条件利用率高
C. 前、后轮同时抱死拖滑，可避免后轴侧滑，前轮在最大制动强度下才会失去转向能力
D. 前轮先抱死拖滑，然后后轮抱死拖滑，附着条件没有充分利用
【单选题】
指出下面错误的一项。___
A. 汽车在原地、小半径弯道低速行驶时，要防止转向盘过于沉重
B. 在高速行驶时，转向盘力不宜过大。
C. 转向系的刚度应低些为好
D. 动力转向系应具有随车速而变化的转向盘力特性
【单选题】
下面错误的说法是___
A. 汽车的动力性不只受驱动力的约束还受到轮胎与地面附着条件的限制
B. 驱动轮的附着力在硬路面上与驱动轮的法向反作用力成正比
C. 在极高车速下，即使是良好路面也不能满足附着性能的要求
D. 四轮汽车的等效坡度与后轮驱动的汽车的等效坡度是相等的
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