A.an unprotected drop-light bulbB.careless disposal or ……

单项选择题Records of tests and inspections of a cargo vessel’s fire extinguishing systems shall be kept on board（）.

A.for 1 year
B.for 2 years
C.until the next Coast Guard inspection
D.until the vessel's Certificate of Inspection expires

单项选择题Port of Registry refers to the port where（）.

A.the ship has been named
B.the ship has been built
C.the ship has been signed
D.the ship has been registered

单项选择题On vessels over 100 gross tons，whose responsibility is it to ensure that all able seamen in the vessel’s crew have the documents and qualifications required by law and regulation?（）

A.Master of the vessel
B.USCG Officer in Charge of Marine Inspection
C.Owner or operator of the vessel
D.Company's personnel director

单项选择题Official proof of an American vessel’s nationality is contained in the（）.

A.Certificate of Inspection
B.Official Log
C.Certificate of Documentation
D.Shipping Articles

单项选择题Inspection of a Halon extinguisher involves checking the hose，handle，nozzle，and（）.

A.sight glass
B.weighing the extinguisher
C.service technicians report
D.last date it was charged