【单选题】
自阀手柄在运转位，均衡风缸与列车管均无压力，与其无关的原因是___。
A. 自阀调整阀弹簧调整压力不足
B. 自阀中继阀总风塞门关闭
C. 均衡风缸大
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答案
A
解析
暂无解析
相关试题
【单选题】
单纯的联合调节器故障，可使柴油机超过额定最高转速，达到极限转速时，由于___的作用，柴油机自动停车不会引起“飞车”。
A. 电磁联锁
B. 紧急停车装置
C. 调速器动力活塞
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