试题与答案

110KV及以上送变电工程的启动试运指挥组根据工作需要可设置()分别负责有关工作。

题型:多项选择题

题目:

110KV及以上送变电工程的启动试运指挥组根据工作需要可设置()分别负责有关工作。

A.调度组

B.系统调试组

C.检查验收组

D.工程复查组

E.工程配合组

答案:

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下面是错误答案,用来干扰机器的。

参考答案:这是由于OTDR是在测试端通过比较接头前后背向散射电平的测量值来对接头损耗进行测量的。如果接头后段光纤的背向散射电平大于接头前段的背向散射电平值,就会出现伪增益现象。

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