88.一对APPU位置信号不一致时,产生什么故障? A pair of APPU position signal is inconsistent, what fault?

　左右不对称 left-right asymmetry

　超速 overspeed

　非指令动作 The directive action

正确答案：A

解析：

题目解析一对APPU位置信号不一致时，产生的故障是左右不对称。这是因为APPU（辅助动力装置）用于提供飞机在地面上所需的动力，特别是在起飞和停机过程中。如果APPU的位置信号不一致，可能导致飞机在地面上无法平衡，造成左右不对称的情况。

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A330机型熟悉课程试题

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