A.The unit is working properly
B.The face mask is not sealed properly
C.The air bottle needs to be refilled
D.The air supply hose has a leak
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A.corrosive
B.class B poison
C.oxidizer
D.explosive
A.The cargo's temperature is colder than the dew point of the air in the space
B.The cargo's temperature is warmer than the dew point of the air in the space
C.The dew point of the air in the space is lower than the dew point of the outside air
D.All of the above
A.Cement
B.Chinaware
C.Fish meal
D.Steel products
最新試題
All towing vessels of 26 feet or longer while navigating are required to carry which item? （）
Explosive and flammable gasses are most likely to be encountered on a vessel（）.
Air circulation is caused or affected by（）.
An example of a grade C product is（）.
An authorized light to assist in the identification of submarines operating on the surface is a(n)（）.
All personnel on board a vessel should be familiar with the rescue boat’s（）.
An azimuth angle for a body is measured from the（）.
Aids to navigation marking the intracoastal waterway can be identified by（）.
An “on-load” release system on a survival craft means the cable can be released（）.
An example of an anchor which has a stock is a（）.