A.increase ignition delay
B.affect fuel oil metering
C.affect engine performance at low speed
D.only disappear due to fuel oil abrasion
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A.oil foaming will occur
B.large quantities of oil are consumed
C.lube oil viscosity is always decreased
D.corrosive by-products are usually formed
A.keep the parts immersed in diesel fuel
B.always keep the plunger and barrel together
C.work over a linoleum-type surface
D.all of the above
A.Used of bimetallic piston rings
B.Ring gap pre-tensioning
C.Thermal increase in ring-end clearance
D.Gas pressure acting against the back of the ring
A.must be centrifuged
B.must by filtered
C.must be changed
D.is holding finely dispersed carbon in suspension
A.all excessive amounts of growth will cause the main engines of the vessel to stall due to the inability to supply the proper quantities of fuel to satisfy the existing load
B.The deposits produced by these growths form blockages and flow restrictions ultimately leading to improper atomization of the fuel into the cylinders
C.Eventually the growth of these organisms will deplete the supply of food available to them, which in turn will cause their demise
D.If continual growth is permitted, a sweet odor similar to that associated with baking will be noticed when system components are opened for inspection
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The shipboard oil pollution emergency plan will be invalid after ()
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?()
()connectors hold best if a wire is accidentally pulled or a connection becomes loose.
Which of the following items don’t belong to dock repair works?()
The main purpose of port State control is not to()
If two A.C.generators are to be operated in parallel, the load is distributed evenly by()
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to ()
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 condensers located in various stages of a flash evaporator are cooled by()
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the()