A.shockless
B.smokeless
C.no vibration
D.noiseless
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A.cooling water
B.cooling oil
C.refrigerant
D.lubricate oil
A.nuts
B.screws
C.studs
D.flanges
A.The alternators are not generating the same voltages and should be adjusted on automatic voltage regulator rheostats
B.Alternator frequencies are different and should be adjusted on the governor speed controllers
C.Alternators are out of phase and should be tripped and paralleled again
D.One alternator has lost one of its phases
A.high input impedance, high gain and low output impedance
B.high input impedance, high gain and high output impedance
C.low input impedance, low gain and high output impedance
D.low input impedance, high gain and low output impedance
A.methyl chloride
B.ammonia
C.hydrofluoric acid
D.ozone
最新試題
The treatment of the fuel oils involves storage, heating, filtering and（）
The main purpose of port State control is not to（）
Which of the following items don’t belong to dock repair works?（）
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
Cold weather starting of a diesel engine may be made easier by（）
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 additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.