A.cold corrosion of the nozzles
B.fuel viscosity for better atomization
C.carbon accumulation on the nozzles
D.fuel detonation in the cylinders
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A.the size of the holes in the fuel nozzle
B.timing of the pump
C.supply pressure to the pump
D.shape of the combustion chamber
A.fuel injectors
B.exhaust valves
C.intake valves
D.all of the above
A two-stroke diesel engine exhaust temperature will be lower than a four-stroke diesel engine of the same displacement because the （）
(1) scavenging air is cooling the exhaust gases
(2) exhaust cycle time is longer
A.(1) only
B.(2) only
C.both (1) and (2)
D.neither (1) nor (2)
A.acidity has increased
B.viscosity has decreased
C.demulsibility has improved
D.foaming is guaranteed to occur
A.increase the fuel oil temperature
B.decrease the fuel oil temperature
C.decrease the fuel oil supply pressure
D.increase the air supply
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Maximum horsepower of a diesel engine is attained （）.
Routine monitoring of a diesel engine should include （）.
Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
The function of diesel engine piston compression rings is to （）.
In using reduction gears to obtain efficient propeller speeds, （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
In a simple mechanical governor, the （）.
What is the function of the thrust bearing?（）
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.