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【判断题】
牵引缓冲装置的用途是将机车与车辆连接或分离,在运行中传递牵引力,缓和及衰减牵引力与制动力的变化,具有连接、牵引和缓冲的作用。
A. 对
B. 错
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在电机火化等级分类中的1级、1¼级 1½级均为持续运行中无害的火花。
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闸瓦压力大,制动力也大。但闸瓦压力不能过大,否则使机车、车辆易产生滑行。
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挂车前适当撒砂,列车起动前适当压缩车钩可以防止空转。
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【判断题】
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