单项选择题
Multi-year ice is the hardest sea ice and should be avoided if possible. It is recognizable because of what tone to its surface color? （）
A.Greenish
B.Bluish
C.Grey
D.Grey-white
点击查看答案&解析
相关考题
-
单项选择题
In order to benefit from the use of storm oil in heavy seas，the storm oil should be spread （）.
A.around the rudder and screws
B.completely around the vessel
C.to leeward of the vessel
D.to windward of the vessel -
单项选择题
If your vessel has a GM of one foot and a breadth of 50 feet，what will be your full rolling period? （）
A.11 seconds
B.15 seconds
C.20 seconds
D.22 seconds -
单项选择题
If a vessel is engaged in fishing according to the definitions in the Rules，it will have （）.
A.gear extending from the side or stern
B.gear that restricts maneuverability
C.less than 50 percent trolling lines
D.None of the above
