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毎日1問、正解者には6つの富を、参加者には2つの富をプレゼント;6月03日

2016-06-03View Original

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 単一選択問題:安全弁は圧力容器に搭載される重要な安全装置の一つであり、毎月自動的に排気が行われ、週に一度は手動で排気試験が行われます。その際は記録を取り、署名をする必要があります。また、定期的に点検を行い、適切な圧力を維持し、密封状態を良好に保つ必要があります。定期的な点検の間隔は(  )です。A.2年 B.1年 C.半年 D.3ヶ月 正解:B

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