A.pre-injection fuel oil treatment
B.lube oil filtration
C.lube oil purification
D.piston cooling
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A.their free-floating design
B.their relatively small size
C.the reciprocating motion of the piston
D.their position in the lubrication system
A.hinged rain guards
B.corrosion resistant flame screens
C.dipsticks for measuring oil levels
D.crankcase ventilation fans
A.aluminum plates
B.lead cathodes
C.copper baffle plates
D.sacrificial zincs
A.bearing pressure in a four-stroke\cycle acting single diesel engine is continually reversed
B.bearing pressure in a two-stroke\cycle single acting diesel engine is continually reversed
C.the maximum bearing pressure is higher in a single acting two-stroke/cycle diesel engine
D.two-stoke/cycle diesel engines require more complicated lubrication piping
A.Common-rail injection
B.Air injection
C.Jerk pump injection
D.Distribution injection
最新試題
The condensers located in various stages of a flash evaporator are cooled by（）
The cetane rating of diesel fuel is an indication of the （）
If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
Using a file without a handle may result in （）
When does auxiliary burner of incinerator put into operation? （）Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish
The shipboard oil pollution emergency plan will be invalid after （）
Flame failure in an automatically fired auxiliary boiler can from a/an （）
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
The main purpose of port State control is not to（）