A.employing fuel oil as a cooling medium
B.preventing hard carbon deposit on nozzle tips
C.avoiding fuel oil temperature exceeding builder’s specification
D.ensuring good metallic contact between nozzles and cylinder heads
您可能感興趣的試卷
你可能感興趣的試題
A.it is fitted with neoprene O-ring seals
B.the honing process makes it easier to maintain the desired oil film
C.there is likelihood of water leaking into the combustion space
D.it fits more loosely due to a decrease in heat transfer through the composite wall
A.high average exhaust manifold
B.greatly fluctuating inlet manifold pressure
C.constant exhaust manifold pressure
D.multiple exhaust pipes to the turbocharger
A.lower thermal expansion rates than wet liners
B.greater heat transfer rate than wet liners
C.greater wear resistance than wet liners
D.procedure to replace dry liners is simpler than for wet liners
A.exhaust gas pressure
B.exhaust gas temperature
C.speed
D.load
A.Viscosity is decreased
B.Octane number is altered
C.Pump speed is decreased
D.Blower’s speed is decreased
最新試題
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a()
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the()
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
To proceed to the assistance of a ship in distress is()
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?()
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?()
Which one is NOT the ‘clear grounds’ for a more detailed inspection?()
To shut down a diesel engine after it exceeds the set maximum speed,which type of device listed should be used?()
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated()
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the()