A.They have the same function as frapping line
B.They are safety lines for personnel inside the lifeboat
C.They slow the descent of the lifeboat
D.They hold the lifeboat alongside the embarkation deck
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A.Two
B.Three
C.Four
D.Five
A.Six by seven galvanized wire rope
B.Six by twenty-four improved plow steel wire rope
C.Six by thirty-seven preformed fiber-core wire rope
D.Six by nineteen regular-lay filler wire rope
A.Each lifeboat must have a launching appliance
B.Launching appliances must be of the gravity type
C.There may not be more than two launching appliances on the same deck
D.All of the above
A.Moisture accumulation in winch motor damaging the electrical wiring
B.Freezing of gears in cold weather
C.Corroding of sheaves on the davits so they will not rotate
D.All of the above
A.release the gripes
B.release tricing pendants
C.put the cap on the drain
D.lift the brake handle
最新試題
When a rescue vessel approaches a lifeboat in heavy seas，the person in charge of the lifeboat should（）.
When backing a motor propelled lifeboat (right-hand propeller) with the rudder amidships，the stern will back（）.
The life jackets on all vessels shall be（）.
The tops of the thwarts，side benches，and the footings of a lifeboat are painted which color?（）
The lifesaving equipment on all vessels shall be（）.
When landing a lifeboat through heavy surf with a strong current running parallel to the beach (from right to left when facing from seaward) the recommended procedure is to（）.
When abandoning ship，after launching the motor lifeboat you should（）.
The light on a life jacket must be replaced（）.
When launching an open lifeboat by falls，the boathooks should be（）.
Safety shackles are fitted with（）.