A.large dirt particles in the oil supply
B.insufficient lubricating oil and overheating
C.normal wear
D.water contamination of the lube oil
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A.excessive lube oil pressure
B.the proper seating of new rings
C.a worn cylinder liner
D.a malfunctioning cylinder relief valve
A.starting the engine while hot
B.knurling the piston skirt
C.operating the engine overheated
D.scuff resistant piston rings
A.space limitations prevent separately run pipes
B.the engines are small auxiliary units
C.they are arranged to prevent gas backflow to each engine
D.a waste heat boiler is installed
A.worn connecting rod bearings
B.worn engine cylinder liners
C.high cylinder firing pressure
D.stuck spring-loaded manhole covers
A.chromium plating piston rings
B.knurling the piston skirt
C.extended maximum power operation
D.applying load to a cold diesel engine
最新試題
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
The condensers located in various stages of a flash evaporator are cooled by（）
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
The shipboard oil pollution emergency plan will be invalid after （）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）
If separating effect is not good, which measure should be taken （）
The main purpose of port State control is not to（）
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）