單項(xiàng)選擇題

The purpose of sheer in ship construction is to（）.

A.allow the ship to ride waves with drier decks
B.eliminate the need for butt straps
C.eliminate the need for margin plates
D.give greater strength at the deck edge

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單項(xiàng)選擇題

The procedure of strengthening damaged structures on a ship by using wood or steel is called（）.

A.bracing
B.battening
C.blocking
D.shoring

單項(xiàng)選擇題

The pillar shape that gives the greatest strength for the least weight is the（）.

A.octagonal pillar
B.H Beam pillar
C.I Beam pillar
D.circular type pillar