【判断题】【消耗次数:1】
活塞环对口、装反、弹力下降、侧隙过大、油环卡死等都会引起机油消耗异常的情况
正确
错误
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相关题目
【单选题】 出现气缸密闭性变差,机油上窜严重的故障的原因是活塞环()
①  端隙过大
②  端隙过小
③  侧隙过大
④  侧隙过小
【单选题】 为了减轻活塞环的磨损, 通常对( ) 进行镀铬
①  第一道气环
②  第二道气环
③  油环
④  气环和油环
【单选题】 活塞环的开口间隙一般为
①  0.05~0. 10mm
②  0.10~0. 20mm
③  0.20~0. 50mm
④  0.50~0. 80mm
【判断题】 应在保证活塞环密封良好、机件磨损正常的条件下,适当选用低黏度的发动机油( )
①  正确
②  错误
【单选题】 下列活塞环由于截面形状对称, 安装时不需区分上下方向的种类是
①  扭曲环、 梯形环和桶面环
②  矩形环、 锥形环和桶面环
③  矩形环、 梯形环和桶面环
④  扭曲环、 锥形环和桶面环
【单选题】 发动机润滑油粘度过大,会引起(? ? )。
①  发动机冷启动困难
②  减轻发动机零件磨损
③  冷却效果好
④  洗涤效果好
【判断题】 活塞环的泵油作用可以加强对气缸上部的润滑, 因此是有益的
①  正确
②  错误
【判断题】 活塞顶是燃烧室的一部分,活塞头部主要用来安装活塞环,活塞裙部可起 导向的作用
①  正确
②  错误
【判断题】 活塞顶是燃烧室的一部分,活塞头部主要用来安装活塞环,活塞裙部可起导向的作用。
①  正确
②  错误
【判断题】 气环的密封原理除了自身的弹力外,主要还是靠少量高压气体作用在环背产生的背压而起的作用。
①  正确
②  错误
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