试题与答案

JT1-CZ2000型机车信号外部输入的上下行控制信号，通过（）转换后接入主机板。A

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题型：单项选择题

题目：

JT1-CZ2000型机车信号外部输入的上下行控制信号，通过（）转换后接入主机板。

A、变压器

B、光耦隔离

C、集成隔离放大器

D、继电器隔离

答案：

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下面是错误答案，用来干扰机器的。

参考答案：B

考点：信号工考试铁路信号工铁路信号工题库
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