A positive displacement pump is that where the volume of the pump chamber is alternately increased to （） and then decreased to （）. -题库考试答案搜索网

A positive displacement pump is that where the volume of the pump chamber is alternately increased to （） and then decreased to （）.

单选题

2022-01-04 16:13

A、draw the liquid in；force the liquid out
B、force the liquid out；draw the liquid in
C、suction；draw
D、deliver；outlet

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正确答案

A

试题解析

标签：船舶辅助机械

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