工芸基礎知識（選択問題）2018025
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往復ポンプは船では一般的に使用されません。 A. 船底排水ポンプ B. ボイラー給水ポンプ C. 石油タンカーの掃除用ポンプ D. 冷却水ポンプヒント：往復ポンプは、流量が少なくて揚程が高く、かつ自己吸上げが必要な場合に多く使用される。流量が多くて揚程が低い場合には遠心ポンプが使われる。
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