A.Full Ahead
B.Half Ahead
C.Full Astern
D.Half Astern
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A.value of the mean draft
B.degree of list
C.amount of roll
D.difference in fore and aft drafts
A.flammable vapor by volume in air
B.oxygen present to support combustion
C.the temperature of the flash point
D.the lower limit of explosibility of the mixture
A.They should wear safety shoes
B.They should wear ear protection
C.They should not wear jewelry
D.All of the above
A.leaked into navigable waters
B.poured into navigable waters
C.pumped into navigable waters through a fixed piping system
D.all of the above
A.a damaged pneumercator line
B.a puncture, crack, or hole in the skin of the vessel
C.improper record keeping of fuel transfer activities
D.contamination of the contaminated steam supply system
最新試題
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.
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
The cetane rating of diesel fuel is an indication of the （）
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
If separating effect is not good, which measure should be taken （）
Which of the following items don’t belong to dock repair works?（）
Diesel engine air start system check valves are opened by （）