单项选择题
A.butt welds B.seam welds C.fillet welds D.plate welds
The type of joint formed when an edge of one plate is l...
单项选择题The type of joint formed when an edge of one plate is laid over the edge of the plate to which it is riveted is a（）.
A.grip joint B.strap joint C.thread joint D.lap joint
The type of joint formed when a third small plate is ri...
单项选择题The type of joint formed when a third small plate is riveted over two plates butted together is called a（）.
A.butted joint B.lap joint C.strap joint D.stringer joint
The system of valves and cargo lines in the bottom pipi...
单项选择题The system of valves and cargo lines in the bottom piping network of a tanker that connects one section of cargo tanks to another section is called a（）.
A.come-along B.crossover C.manifold D.runaround
