When inspecting a tank barge to see that it has all the required fire extinguishers and other safety items aboard，which of the following is the best source for determining what is required? （）

单项选择题When backing down with sternway，the pivot point of a vessel is（）.

A.about one-quarter of the vessel's length from the stern
B.at the bow
C.about one-third of the vessel's length from the bow
D.aft of the propellers

单项选择题What will NOT be found on the Certificate of Inspection of an ocean going tanker?（）

A.Manning requirements
B.Minimum freeboard permitted
C.Grade(s) of cargoes that the vessel may carry
D.Waters upon which the vessel may be operated

单项选择题What is(are) standard operating procedure(s) used on a Ro-Ro vessel? （）

A.Periodic inspection and retensioning of lashings as required during voyage
B.Lashings may be completed after the vessel leaves port
C.One QMED assigned to oversee the initial loading and lashing
D.All of the above

单项选择题What is TRUE of pressure vacuum valves? （）

A.They are designed to provide for the flow of small volumes of tank atmospheres caused by thermal variations in a cargo tank
B.They should operate in advance of the pressure/vacuum breakers
C.They should be kept in good working order by regular inspection and cleaning
D.All of the above

单项选择题What is required to be posted in the pilothouse of a vessel? （）

A.Certificate of Inspection
B.Officer's licenses
C.Station Bill
D.Vessel's Maneuvering Characteristics