單項選擇題The damaged cargo is not allowed to export without（）.

A.repairing or replacing
B.to repair or to replace
C.being repaired or replaced
D.to be repaired or replaced


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1.單項選擇題The Certificate of Inspection of a damaged tank barge has expired. What certificate authorizes the barge to move to a repair facility for repair and inspection?（）

A.Application for Inspection
B.Change of Employment
C.Permit to Proceed
D.Temporary Certificate of Inspection

2.單項選擇題The “grip” of a joint represents the（）.

A.thickness of the connected members
B.diameter of the head
C.entire length of the rivet
D.diameter of the shank

3.單項選擇題Starting motors，generators，and other spark producing devices should be mounted as high above the bilges as possible to（）.

A.keep them dry when the bilges are full of water
B.keep them cool when the vessel is underway
C.make them more accessible for repairs
D.prevent accidental ignition of any gasoline vapors that may have accumulated in the bilges

4.單項選擇題Small hull leaks can be temporarily repaired by（）.

A.parcelling
B.parbuckling
C.caulking
D.seizing

5.單項選擇題Rivets are usually made of（）.

A.wrought-iron
B.aluminum
C.high-tensile steel
D.mild steel