The fresh water generator produces fresh water _____.
A.by cooling sea water
B.by heating sea water
C.by evaporation of sea water
D.by purifying sea water
第1题
A.Ammeter and changeover switch
B.Speed governor device
C.Synchroscope
D.Wattmeter
第2题
A.When it is a D.Cmachine
B.When it is an A.Cmachine
C.Any machine that operates on over 100 volts
D.Only when working on wet steel plates
第3题
A.operated manually once an hour
B.operated until the engine has started
C.placed into operation only at maximum load
D.adjustable to meet lubrication requirements
第4题
A.propeller
B.flying wheel
C.main engine
D.crankshaft
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