As for an oil-fired boiler if at a normal steaming condition and water goes out of sight in gauge glasses the action you should take is: () (1) secure oil to fires (2) increase feed pump pressure

A . (1) B . (1)and(2) C . (2) D . neither(1)nor(2)

时间:2022-11-10 17:10:04 所属题库:船舶辅助机械题库

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