A.fuel oil pump will over-speed if dirt is not removed
B.fuel oil transfer pumps cannot tolerate small amounts of dirt in the oil
C.fuel injectors may be damaged by foreign particles in the fuel oil
D.dirty fuel will clog the intake air filter
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A.low lube oil temperature
B.high ambient air temperature
C.low tube oil pressure
D.high exhaust system back pressure
A.the type and size of the engine
B.the condition of the engine
C.ambient temperature
D.all of the above
A.it has a longer power stroke
B.more air gets into the cylinder each stroke
C.it develops twice as many power strokes at the same speed
D.higher combustion pressure is developed
A.viscosity is too low
B.temperature is too low
C.pump discharge pressure is higher than the systems pressure
D.pump capacity is greater than the systems needs
A.they must be located at the after end of the engine
B.they can only be used with one engine at a time
C.they eliminate the need for controllable pitch propellers
D.they are connected to the engine with a flexible coupling
最新試題
The minimum speed an engine must attain before ignition can occur depends upon （）.
White smoke exhausting from an operating diesel engine may indicate （）.
Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.
Combustion knock occurring in a diesel engine can be caused by （）.
Routine monitoring of a diesel engine should include （）.
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.
Lube oil cannot be efficiently filtered if its （）.
In a simple mechanical governor, the （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
Diesel engine control can be obtained by the bridge （）.