[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fSqx9vVhRE_8fvlQh-ORSzcFSkWGuV-T439Pq-Na2Zvs":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2024-11-10 11:46:41",165261740,[8,9,10,11],"最大爬坡度","I档动力因数","附着力","汽车最小稳定车速",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},45,"34eeb938a848f4ad4bd705ee27cf588b","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F48eba3395437dd881b1b9275a0ad1028.png","汽车理论","work_38294073","第2次在线测试试题","最大传动比的制约因素包括()",[21,32,41,50,59,62,71,80,89,98],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],165261736,[25,26,27,28],"高、低","低、高","高、高","低、低","1. 在同一道路条件与车速下,虽然发动机发出的功率相同,但挡位越___,后备功率越小,发动机的负荷率越____,燃油消耗率越低,百公里燃油消耗量越少,经济性越好","v1",1,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],165261737,[36,37,38,39],"行驶车速","档位选择","挂车的应用","正确的调整与保养","使用方面影响汽车燃油经济性的因有()",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],165261738,[45,46,47,48],"轮胎的结构、帘线和橡胶的品种,对滚动阻力都有影响,滚动阻力系数的大小直接影响汽车的最高车速、极限最大加速度和爬坡度","汽车车速达到某一临界值时,滚动阻力迅速增长,轮胎会发生很危险的驻波现象,所以汽车的最高车速应该低于该临界车速","轮胎与地面之间的附着系数直接影响汽车的极限最大加速度和爬坡度","轮胎的滚动阻力系数直接影响汽车的燃油经济性,滚动阻力大燃油消耗量明显升高","轮胎对汽车动力性、燃油经济性影响有()",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],165261739,[54,55,56,57],"最高车速","汽车的后备功率","汽车燃油经济性","汽车驾驶性能","最小传动比选择主要考虑的因素有()",{"answer":60,"createTime":5,"id":6,"options":61,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":30,"type":31},[],165261741,[66,67,68,69],"档位数多,增加了发动机发挥最大功率附近功率的机会,提高了汽车的加速和爬坡能力,档位数增加对动力性有利","档位数多,增加了发动机在低燃油消耗率工作的机会,档位数增加燃油经济性有利","档位数还影响邻档间传动比的比值.比值过大会造成换档困难.通常其比值要小于1.7~1.8.最大与最小传动比值越大,档位数应越多.轿车行驶车速高,比功率大,最高档后备功率也大,最大与最小传动比的比值小","汽车各档传动比大体采用等比级数分配,实际各档传动比值逐渐减小","汽车传动系挡数与各挡传动比的选择的基本原则论述正确的是()",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":30,"type":31},[],165261742,[75,76,77,78],"常先从保证汽车预期的最高车速来初步确定","若给出了期望的最高车速,选择的发动机功率应大体等于,但不小于以最高车速行驶时的行驶阻力功率之和","在实际工作中,还利用现有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","不少国家还对车辆应有的最小比功率作出规定,以保证路上行驶车辆的动力性不低于一定水平,防止某些性能差的车辆阻碍车流","关于汽车发动机功率的选择论述正确的是()",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":30,"type":31},[],165261743,[84,85,86,87],"汽车满载时汽车的质量会增大,质量增大,滚动阻力、坡度阻力和加速阻力都会增大,加速时间会增加,最高车速降低","汽车满载时汽车的质量会增大,质量增大,滚动阻力、坡度阻力和加速阻力都会增大,加速时间会增加,最高车速不变","重心的位置也会发生改变,重心位置的改变会影响车轮附着率,从而影响最大爬坡度","重心的位置也会发生改变,重心位置的改变不会影响车轮附着率,不影响最大爬坡度","汽车空车、满载时汽车动力性影响论述正确的是()",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":30,"type":31},[],165261744,[93,94,95,96],"滚动阻力、空气阻力所消耗的功率","滚动阻力、空气阻力、坡度阻力所消耗的功率","滚动阻力、空气阻力、加速阻力所消耗的功率","滚动阻力、空气阻力、加速阻力所消耗的功率及传动系损失的功率","汽车在水平路面上加速行驶时,发动机提供的功率包括( )",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":30,"type":31},[],165261745,[102,103,104,105],"汽车整备质量与总质量之比","汽车装载质量与总质量之比","汽车装载质量与整备质量之比","汽车整备质量与装载质量之比","汽车的质量利用系数是指( )"]