A.They are used to steady a lifeboat when lowered
B.They are normally attached to the davit span
C.They are needed only on radial davits
D.They are used to clear the puddings
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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
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
最新試題
What is the purpose of tricing pendants?（）
When operating the air supply system in a covered lifeboat the（）.
Which sequence is correct when launching a lifeboat stowed in gravity davits?（）
What is required by regulations concerning the stowage of lifeboats on cargo vessels?（）
What shall be conducted during a fire and boat drill?（）
When launching an open lifeboat by falls，the boathooks should be（）.
What is the minimum number of deck officers，able seaman or certificated persons required for a lifeboat on a vessel in ocean service?（）
Safety shackles are fitted with（）.
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（）.
The life jackets on all vessels shall be（）.