A.Steam trap
B.Check valve
C.Separator
D.Strainer
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A.lobe type
B.screw type
C.axial piston type
D.volute type
A.increase the fuel oil temperature
B.decrease the fuel oil temperature
C.decrease the fuel oil supply pressure
D.increase the air supply
A.keyway
B.shaft
C.packing
D.valve
A.turbine
B.centrifugal
C.ejector
D.mixed flow
A.has learnt
B.have learnt
C.learn
D.are learning
最新試題
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 treatment of the fuel oils involves storage, heating, filtering and（）
By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a（）
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
The ISPS Code consists of a mandatory section-Part A, which shows（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
Which of the following items don’t belong to dock repair works?（）
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）