An integral part of a blowout preventer that serves as the closing element on an open hole，and whose ends do not fit around the drill pipe but seal against each other and shut off the space below completely is the（）. -题库考试答案搜索网

An integral part of a blowout preventer that serves as the closing element on an open hole，and whose ends do not fit around the drill pipe but seal against each other and shut off the space below completely is the（）.

单选题

2022-01-05 10:55

A、shear ram
B、blind ram
C、pipe ram
D、annular ram

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正确答案

B

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标签：船舶设备名称水路交通运输技能考试海船船员考试

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