For most ship engines，the fuel is（）.

[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