In large marine diesel engines cylinder oils usually contain additives formulated to impart the () to clean the rings and grooves.
- Ainefficiency
- Boiliness
- Cdetergency
- Dpurity
In large marine diesel engines cylinder oils usually contain additives formulated to impart the () to clean the rings and grooves.
1、Modern marine diesel engines equipped
Modern marine diesel engines equipped with mechanical fuel injection operate on a combustion phase within the cycle which is()Aentirely constant...
2、Marine four-stroke diesel engines are
Marine four-stroke diesel engines are mainly ().Aof crosshead typeBof trunk piston typeCof low speed typeDall the above
3、Large marine diesel engines of crosshe
Large marine diesel engines of crosshead construction generally have two systems of lubrication: a total loss system feeding the () and a rec...
4、Before a marine diesel engine is start
Before a marine diesel engine is started the cylinders and pistons must be ().Acooled to appropriate temperatureBwarmed up gradually to appropriate temperatureCopened up and renewedDground and polished
5、Turbocharging of marine diesel engine
Turbocharging of marine diesel engine is achieved by two distinct methods, () termed the constant pressure and the pulse system.ArespectableBrespectfulCrespectiveDrespectively
6、Turbulence in a diesel engine cylinder
Turbulence in a diesel engine cylinder is of major importance in providing ().Aproper fuel meteringBcomplete fuel/air mixingCminimal fuel penetrationDproper fuel timing