If the meter needle of the oxygen indicator cannot be set to zero，what should be done? （） -题库考试答案搜索网

If the meter needle of the oxygen indicator cannot be set to zero，what should be done? （）

单选题

2022-01-03 03:12

A、Replace the batteries
B、Check the sampling tube for blockage
C、Adjust the final reading by the amount the needle is displaced from zero
D、Replace the platinum filament

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正确答案

A

试题解析

标签：包装危险品与IMDG规则

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