A.higher firing pressure
B.more power output
C.lower fuel pressure
D.less power output
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A.The chromium will not wear out the piston rings
B.The chromium strengthens the liners in the way of the scavenging air ports
C.Chromium eliminates the need for oil scraper rings
D.Pores in the plating aid in maintaining the lube oil film
A.decrease until the engine speed increases
B.increase as the load increases
C.decrease as the load
D.increases remain unchanged
A.SOLAS
B.MARPOL
C.STCW
D.Ballast Water convention
A.Lube oil is diluted and its viscosity is reduced
B.Sulfuric acid is formed
C.Bearings become pitted ad immediately fail
D.Valve stems develop sludge deposits
A.excessive surging at governed speed
B.combustion knock under load
C.poor fuel combustion
D.all of the above
最新試題
The treatment of the fuel oils involves storage, heating, filtering and（）
（） is not installed on the main switchboar.
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
To proceed to the assistance of a ship in distress is（）
Which of the following items don’t belong to dock repair works?（）
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