单项选择题
A.the main engines B.the auxiliary engines C.the emergency generator engine D.the auxiliary engines and the main engine(s)
A full-flow 50μm filter is installed ,（） so the injecti...
单项选择题A full-flow 50μm filter is installed ,（） so the injection system components on the main engine are safeguarded.
A.as close to the main engine as possible B.as close to the main pump as possible C.just before the fuel valve D.just before the booster pump
The fuel from the bunker tanks must be treated by befor...
单项选择题The fuel from the bunker tanks must be treated by before entering the service tanks（）, from where the fuel enters（）
A.centrifugal separators; the engine cylinder B.oily water separators; the engine cylinder C.oily water separators; the fuel supply system D.centrifuges; the fuel supply system
When the heavy fuel oil is heated to achieve the viscos...
单项选择题When the heavy fuel oil is heated to achieve the viscosity of 10-15 cst, may occur.To avoid this, a system is used in most occasions（）
A.boiling and cavitations; low temperature B.boiling and cavitations; pressurized C.leaking and boiling; low temperature D.leaking and boiling; pressurized
