单项选择题
The smallest size of flaw that can be detected on a radiograph examination of a weld will be indicated by the（）.
A.film speed
B.penetrometer
C.exposure reading
D.time of exposure
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相关考题
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单项选择题
The lines led forward from the bow and aft from the stern when a vessel is moored to the dock are（）.
A.bow and stern lines
B.breast lines
C.halyards
D.warps -
单项选择题
The end of the joint with the exterior threads is called the（）.
A.pin
B.stem
C.box
D.stand -
单项选择题
The document on a vessel，annually endorsed by an American Bureau of Shipping surveyor，is called the（）.
A.Certificate of Inspection
B.Classification Certificate
C.Load Line Certificate
D.Seaworthy Certificate
