A . natural gas
B . diesel oil
C . propane
D . bunker fuel
[单选题]On most diesel engines, the governor controls the output speed by ().A . controlling the amount of fuel injected into the cylindersB . varying the speed of the turbochargerC . adjusting the compression ratioD . changing the timing of the fuel injecti
[单选题]On most modern diesel engines, the main and connecting rod bearings receive their lubricating oil by ().A . banjo feedB . splash feedC . gravity feedD . pressure feed
[单选题]Most fuel injection nozzles are opened by ().A . fuel oil pressureB . a cam operated followerC . a spring-loaded pressure plateD . timing gears keyed to the crankshaft
[单选题]Fuel injection systems meter fuel, atomize fuel, and ().A . create turbulence in the combustion chamberB . aid in completing cylinder scavengingC . inject fuel at the proper timeD . minimize fuel penetration into the cylinder
[单选题]During the fuel injection period, fuel pressure must exceed cylinder gas pressure to ().A . ensure penetration and distribution of the fuel in the combustion chamberB . ensure the needle valve is flushed clean during each injectionC . prevent combust
[单选题]Fuel injectors used in heavy fuel oil systems are usually provided with cooling to reduce().A . cold corrosion of the nozzlesB . fuel viscosity for better atomizationC . carbon accumulation on the nozzlesD . fuel detonation in the cylinder
[单选题]E.ach ship shall carry on board a ship security plan approved byA.the chief engineer officerB.the master of the shipC.the manager of the companyD.the Administration
[单选题]E.ach ship shall carry on board a ship security plan approved by______.A.the chief engineer officerB.the master of the shipC.the manager of the companyD.the Administration
[单选题]_____ the engines, the diesel engine is ____ used engine on boardA.Between / more commonlyB.Among / the most commonlyC.Between / not more commonlyD.Among / not the most commonly
[单选题]The( )means that the ship-owner provides a designatedmanned ship to the cha