我
- A.both as clarifiers
- B.first one as clarifiers, second one as purifier
- C.both as purifiers
- D.first one as purifier, second one as clarifier
- A.It causes excessive smoking and soot at low firing rates
- B.It doesn’t readily burn when combined with oxygen
- C.It clogs fuel oil strainers more often
- D.It forms a corrosive acid when mixed with water or water vapor
- A.pre-injection fuel oil treatment
- B.lube oil filtration
- C.lube oil purification
- D.piston cooling
- A.A special sealing gland
- B.Propeller
- C.Tailshaft
- D.Sterntube bearing
- A.shrunk into
- B.expanded into
- C.extended into
- D.designated into
- A.at any time
- B.only after the engine room control station is switched to “bridge control”
- C.whenever the secondary station is switched to "bridge control"
- D.with the approval of the chief engineer only
- A.warping head
- B.fairlead
- C.wildcat
- D.capstan
- A.excessive drive motor speed
- B.excessive pump discharge pressure
- C.too low of a tilting box angle
- D.insufficient drive motor speed
- A.gas turbine
- B.diesel engine
- C.steam engine
- D.gasoline engine
- A.rise
- B.fall
- C.be maintained constant
- D.None of the above is true
