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
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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
A.the mess room
B.each lifeboat
C.each industrial work site
D.each fire station
A.run as fast as the boat will go and keep the sea on the stern
B.secure the engine，put sea anchor over the bow，put out the oars，use sweep oar and back onto beach
C.go in under oars and put out the sea painter
D.put the sea broadside and let the boat drift ashore
A.Secured to the inboard side of a forward thwart and led inboard of the falls
B.Spliced into the ring on the stem post
C.Secured by a toggle to the stem post and led outboard of the falls
D.Secured by a toggle around the outboard side of a forward thwart
A.produced by
B.met with
C.offered of
D.provided with
A.there exist
B.there is
C.there are
D.are there
A.reduce the swinging of the lifeboat as it is being lowered from the embarkation level
B.secure the lifeboat in the davits when in the stowed position
C.hold the lifeboat to the ship's side until the tricing lines are passed
D.be used as a safety line in an emergency
最新试题
On a ship，a cabinet or space containing the controls or valves for the fixed firefighting system must be（）.
During a fire drill on a ship，what action is required?（）
Safe water buoys may show ONLY（）.
Each lifeboat must be lowered and maneuvered in the water at least once every（）.
The falls on gravity davits are（）.
Normally，potable water systems are connected directly to the（）.
On a ship，how many ring buoys are required to have a buoyant line attached?（）
On a class B fire，which portable fire extinguisher would be the LEAST desirable?（）
Oily rags stored in a pile that is open to the atmosphere are a hazard because they may（）.
Each open lifeboat carried on a vessel on an international voyage must have（）.