A.induce carbon formation on cylinder walls
B.improve fuel penetration in the combustion space
C.form a friction reducing film between mating surfaces
D.lubricate the fuel injection
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A.Improper fuel rack positioning
B.Lengthy opening of the exhaust valve
C.Excessively early injection timing
D.Extended light load operation
A.higher torque but lower brake horsepower
B.lower torque but higher brake horsepower
C.higher torque and lower brake horsepower
D.lower torque and higher brake horsepower
A.reduce the wear of bearing surfaces
B.cool the bearing surfaces
C.assist in sealing bearing surfaces
D.all of the above
A.Non-harmonic speed
B.Critical speed
C.Maximum speed
D.Design maximum speed
A dirty fuel oil filter is can be detected by （）
Ⅰ.fuel oil analysis
Ⅱ.observing the pressure drop across the filter
A.Ⅰonly
B.Ⅱonly
C.eitherⅠorⅡ
D.neitherⅠnor
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（） is not installed on the main switchboar.
When does auxiliary burner of incinerator put into operation? （）Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish
The main purpose of port State control is not to（）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
Using a file without a handle may result in （）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
The ISPS Code consists of a mandatory section-Part A, which shows（）