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
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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
A.towing bridle
B.main weather cover
C.external lifelines
D.righting strap
A.turned off
B.already
C.almost
D.ready
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The ISM code is part of（）.
A tide is called diurnal when（）.
The circulation around a low pressure center in the Northern Hemisphere is（）.
The mean draft of a ship is the draft（）.
Manoeuvring information can not be obtained from（）.
What is a CORRECT reply to a pilot’s request, How’s your heading?（）
Which of the following is not a form of precipitation?（）
（）is the act of allocating space to containers on board of a container ship in the order of the discharge ports.
The dew point temperature is（）.
The loading of the ship must be done in accordance with（）.