Which of the following pumps will build up a bursting pressure or stall their motors if the discharge valves are closed?() (1) gear (2) centrifugal (3) screw

A . (1)and(2) B . (1),(2)and(3) C . (1)and(3) D . (2)and(3)

时间:2022-09-08 11:54:20 所属题库:船舶辅助机械题库

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