单项选择题
A.person in charge B.Coast Guard marine inspection officer C.company safety director D.entire crew
The material used extensively as electrolytic protectio...
单项选择题The material used extensively as electrolytic protection around bronze propellers is（）.
A.Brass B.Copper C.Lead D.Zinc
The major components which determine the length of cate...
单项选择题The major components which determine the length of catenary in a deployed anchor cable are water depth，cable tension，and（）.
A.environmental forces B.bottom conditions C.cable weight D.water density
The capacity of any liferaft on board a vessel can be d...
单项选择题The capacity of any liferaft on board a vessel can be determined by（）.
A.examining the Certificate of Inspection B.examining the plate on the outside of the raft container C.referring to the station bill D.referring to the shipping articles
