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工芸基礎知識(判断問題)20170904

2017-09-04View Original

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甲、乙A類の機器および配管には、不活性ガス置換装置を設ける必要がある。
Reply #22017-09-04
甲、乙A類の機器および配管には、不活性ガス置換装置を設ける必要がある。(正解)
Reply #32017-09-04
対;甲・乙A種の機器および配管を停止する際には、点検時の火気使用による火災や爆発事故を防ぐため、不活性ガスで置換する必要がある。

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