【简答题】
104型电空制动机在制动位或制动保压位时，缓解风缸的压力保不住，随副风缸和列车管的压力往
下降时，如何处理？
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答案
答：（1）如缓解风缸压力跟随副风缸压力往下降，原因是电空阀座体上的充气止回阀阀口有损伤或被异物垫住，或者止回阀关闭不严，造成缓解风缸内压力空气向副风缸逆流，处理的方法是整修及清洗阀
口。(2分)（2）如缓解风缸压力追随列车管压力往下降，反映出来的另一现象是列车管减压时间较长。在单车
或单阀的减压制动后，列车管压力会缓慢上升，小减压空气制动后，还有可能有自然缓解现象。造成这种情况
的主要原因是缓解电磁阀关不严，缓解风缸与列车管相通，处理缓解电磁阀即可。如没有备用电磁阀，将缓解
电磁阀胶垫反装，可切除缓解电磁阀的作用。(3分)
解析
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已知车体全长L＝13 442 mm，由心盘中心线至钩舌内侧面的距离C＝2 371 mm，一位车钩实际高850
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