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工芸基礎知識(選択問題)20180512

2018-05-12View Original

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この投稿は最後にHP0377によって2018-5-12 11:35に編集されました。遠心ポンプの電動機過負荷の原因分析における誤った結論は、です。 A. インペラとポンプケーシングの摩擦 B. パッキンがきつすぎる C. 排出弁が狭すぎる D. 電圧が低すぎる
Reply #22018-05-12
私は答えはCだと思います。バルブの小流量・低電流によって減少するため、Cを選びます

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