單項(xiàng)選擇題

Pollution regulations require that each scupper in an enclosed deck area have a（）.

A.wooden plug
B.soft rubber plug
C.two-piece soft patch
D.mechanical means of closing

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單項(xiàng)選擇題

Owing to the greater girth of a ship amidships than at the ends，certain strakes are dropped as they approach the bow and stern to reduce the amount of plating at the ends. These strakes are called（）.

A.drop strakes
B.stealers
C.throughs
D.voids

單項(xiàng)選擇題

One function of a bulwark is to（）.

A.help keep the deck dry
B.prevent stress concentrations on the stringer plate
C.protect against twisting forces exerted on the frame of the vessel
D.reinforce the side stringers

Pollution regulations require that each scupper in an enclosed deck area have a（）.

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Owing to the greater girth of a ship amidships than at the ends，certain strakes are dropped as they approach the bow and stern to reduce the amount of plating at the ends. These strakes are called（）.

One function of a bulwark is to（）.

Owing to the greater girth of a ship amidships than at the ends，certain strakes are dropped as they approach the bow and stern to reduce the amount of plating at the ends. These strakes are called（）.