A.Ammeter and changeover switch
B.Power factor meter
C.Synchroscope
D.Reverse sequence relay
您可能感興趣的試卷
你可能感興趣的試題
A.seal water supply be cut off
B.make up water supply be cut off
C.oil outlet valve closed or not open sufficiently
D.the flow rate of oily water is too much
When does auxiliary burner of incinerator put into operation? ()
Ⅰ. start incinerator when it is cold
Ⅱ. the sludge for dealing with is little
Ⅲ. the sludge for dealing with is large
Ⅳ. the water and impurity in sludge are too much
Ⅴ. the temperature in incinerator is low
Ⅵ. dealing with little solid rubbish
A.Ⅰ+Ⅱ+Ⅲ+Ⅴ
B.Ⅰ+Ⅱ+Ⅲ+Ⅳ
C.Ⅰ+Ⅳ+Ⅴ+Ⅵ
D.Ⅰ+Ⅱ+Ⅲ+Ⅵ
A.working at intervals and properly heating
B.warming up to 70℃, increase water supply flow
C.improving impulse of water supply
D.reducing water supply flow
A.MARPOL Annex Ⅲ
B.MARPOL Annex Ⅵ
C.MARPOL Annex Ⅴ
D.MARPOL Annex Ⅳ
A.an International Ship Security Certificate
B.an International Oil Pollution Certificate
C.a Safety Management Certificate
D.an International Ballast Water Management Certificate
最新試題
The treatment of the fuel oils involves storage, heating, filtering and()
Engine parameters shall be corresponded to NOx Technical Files. This is required by ()
During the diesel engine running, the water level of F.W expansion tank should normally kept in the () level of glass tube.
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is()
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?()
The shipboard oil pollution emergency plan will be invalid after ()
The ISPS Code consists of a mandatory section-Part A, which shows()
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?()
Using a file without a handle may result in ()
()connectors hold best if a wire is accidentally pulled or a connection becomes loose.