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 injectio
举一反三
- The fuel oil system for a diesel engine can be considered in two<br/>parts---- the fuel supply and the ()systems A: fuel purification B: fuel combustion C: fuel treatment D: fuel injection
- Dirt in the fuel oil system of a diesel engine can cause （）. A: clogged filters B: poor combustion C: overloading of the diesel D: shock of fuel line
- The fuel oil system for a diesel engine can be considered in two parts--the fuel supply and the （） systems.
- Dirt in the fuel oil system of a diesel engine can cause （）.
- Which of the following is a factor of fuel oil almost having nothing to do with the formation of combustion products?（）
内容
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What’s the main purpose of the servo fuel heater on CFM56-3 engine? ( ) A: To decrease the supply oil temperature B: To increase the servo fuel temperature C: To decrease the scavenge oil temperature D: To increase the combustion fuel temperature
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When the ships is going to enter into the harbor, ____. A: change from heavy fuel oil to diesel oil for main engine B: pump out bilge water C: change sea chest form high level one to lower level one D: test emergency generator
- 2
The function of lubricating oil is to( ) A: maintain even distribution of bearing wear B: maintain a constant oil temperature C: maintain a pressurized fluid film between moving surfaces D: remove entrained water
- 3
To be effective, an engine lubricating system must successfully perform the following tasks:_____, _____, and _____. A: minimizing friction between the bearing surfaces of moving parts B: dissipating heat C: keeping the engine parts clean by removing carbon and other foreign matter
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_____is generally not included in the fuel used for the main engine of the ship. A: Diesel oil B: Heavy oil C: Low sulfur heavy oil D: Gasoline