单项选择题
Each commercial fishing vessel must have at least one immersion suit，exposure suit，or life preserver for each（）.
A.person aboard
B.person working on deck
C.crew member
D.None of the above are correct
点击查看答案&解析
相关考题
-
单项选择题
Deck foam systems，designed to protect cargo areas on tankers built after January 1，1975，must have a supply of foam-producing material to operate the system at its designed rate of foam production for（）.
A.15 minutes without recharging
B.20 minutes without recharging
C.25 minutes without recharging
D.30 minutes without recharging -
单项选择题
Cable tension for catenary calculations is taken at the（）.
A.chain locker
B.fairlead
C.anchor
D.contact point of chain with seabed -
单项选择题
By regulation，life preservers aboard an uninspected towing vessel must be（）.
A.readily accessible
B.securely stowed
C.stored in sealed containers
D.stowed with the emergency provisions
