A.lowest absolute humidity
B.lowest relative humidity
C.highest absolute humidity
D.highest relative humidity
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A.dry bulb temperature
B.wet bulb temperature
C.dew point
D.dry point
A.change from blue to orange
B.‘flare up’ and remain lighted
C.probably go out
D.stay blue
A.flushed with clean refrigerant oil
B.purged with the refrigerant
C.washed with an ammonia and alcohol solution
D.grounded to compressor
A.petroleum crystals
B.phosgene gas
C.water vapor
D.carbon monoxide
A.be clear
B.be blue
C.be light green
D.show bubbles
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The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
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Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
The shipboard oil pollution emergency plan will be invalid after （）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
The ISPS Code consists of a mandatory section-Part A, which shows（）
Using a file without a handle may result in （）