单项选择题
A.ring life buoy B.lifeboats C.lifeboat oars D.All of the above
Most lifeboats are equipped with（）.A.unbalanced rudders...
单项选择题Most lifeboats are equipped with（）.
A.unbalanced rudders B.balanced rudders C.contraguide rudders D.straight rudders
Most covered lifeboats will right themselves after caps...
单项选择题Most covered lifeboats will right themselves after capsizing if the（）.
A.passengers are strapped to their seats B.fuel tanks are not less than half full C.sea anchor is deployed to windward D.lower ballast tanks are filled with water
In launching a lifeboat，when should the tricing pendant...
单项选择题In launching a lifeboat，when should the tricing pendants be released?（）.
A.Before the boat is lowered from the stowage position B.As soon as the boat-fall blocks clear the davit head C.After the limit switch is activated D.After all people have been embarked
