单项选择题
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
What is the minimum number of deck officers，able seaman...
单项选择题What is the minimum number of deck officers，able seaman or certificated persons required for a lifeboat on a vessel in ocean service?（）
A.Two B.Three C.Four D.Five
What is the accepted standard for wire rope falls used ...
单项选择题What is the accepted standard for wire rope falls used in connection with the lifeboat gear?（）
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
What is required by regulations concerning the stowage ...
单项选择题What is required by regulations concerning the stowage of lifeboats on cargo vessels?（）
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
