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

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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
单项选择题
The strictest load line regulations apply to（）.

A.gas carriers
B.freighters (break-bulk)
C.passenger ships
D.tankers
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