A.Carbon dioxide
B.Water (stored pressure)
C.Dry chemical
D.Foam
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A.deteriorate and give off noxious gasses
B.spontaneously heat and catch fire
C.attract lice and other vermin and serve as a breeding ground
D.None of the above
A.fire-main system
B.feed-water system
C.freshwater sanitary system
D.domestic water tank
A.two rockets，one of which shall be the buoyant type
B.three rockets，one of which shall be the buoyant type
C.four rockets，two of which shall be the buoyant type
D.five rockets，two of which shall be the buoyant type
A.the cap should be removed to drain the boat when it is waterborne
B.the cage must be free of rubbish or the ball may not seat properly
C.there is an automatic ball check located in a siphon tube
D.the small lever to release the rubber ball float must be turned counterclockwise
A.Frapping line
B.Tricing line
C.Rottmer release
D.Winch remote control wire
最新試題
On a ship，a cabinet or space containing the controls or valves for the fixed firefighting system must be（）.
Oily rags stored in a pile that is open to the atmosphere are a hazard because they may（）.
How should the lifeboat sea painter be rigged?（）
During a fire drill on a ship，what action is required?（）
On a ship，how many ring buoys are required to have a buoyant line attached?（）
On a ship，firefighting equipment must be inspected once every（）.
Safe water buoys may show ONLY（）.
Safety goggles or glasses are NOT normally worn when（）.
Each lifeboat must be lowered and maneuvered in the water at least once every（）.
On a small boat，which knot is best suited for attaching a line to the ring of an anchor?（）