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工芸基礎知識(選択問題)20180701

2018-07-02View Original

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工程基礎知識(選択問題)20180701 ポンプの回転速度が上がると 。 A. 流量の増加 B. 打上げ高さの増加 C. 功率の増大 D. A+B+C
ヒント:流量が増加すると管路の抵抗が増し、作業時の打上げ高さもそれに応じて増加する。また、功率は流量と打上げ高さの積に比例する。
Reply #22018-07-02
Cは、間違いなく作業量が多すぎる。揚程は固定された物理的特性だろう
Reply #32018-07-02
ガンはDです

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