The American Petroleum Institute recommends magnetic particle inspection for（）.

单项选择题Temporary Certificates of Inspection for offshore drilling units are effective until the （）.

A.Operations Manual is approved
B.Minerals Management Service approval is issued
C.classification society approval is issued
D.permanent Certificate of Inspection is issued

单项选择题Spontaneous ignition can result from（）.

A.an unprotected drop-light bulb
B.careless disposal or storage of material
C.smoking in bed
D.worn electrical wires on power tools

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