A.cargo runners
B.stays
C.topping lifes
D.All of the above
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A.being rigged combined
B.is rigged combining
C.rigs combining
D.is rigged combined
A.should be worn while fighting a fire
B.can be used in atmosphere deficient in oxygen
C.filter contaminants from air that is to be breathed
D.may be substituted for a self-contained breathing apparatus
A.settle near the bottom of the blige
B.settle near the top of the bilge
C.settle evenly throughout all levels of the bilge by mixing with air
D.disperse to atmosphere
A.sweep flames away with water spray
B.shut off the leak
C.use a chemical foam fire extinguisher
D.call t e local fire department
A.Non-toxic gas
B.oxygen
C.Hydrogen
D.Helium
最新試題
Which of the following shall not the officers in charge of the navigational watch do?（）
The dew point temperature is（）.
Fog is likely to occur when there is little difference between the dew point and the（）.
Bales close to the deckhead should be covered to prevent（）.
The loading of the ship must be done in accordance with（）.
In the Northern hemisphere northerly winds may cause temperature（）.
Manoeuvring information can not be obtained from（）.
A tide is called diurnal when（）.
Berthing means bringing a vessel to her berth until（）.
The helm command PORT TWENTY means（）.