单项选择题

When a vessel is stationary and in a hogging condition，the main deck is under（）.

A.compression stress
B.tension stress
C.shear stress
D.racking stress

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单项选择题

What would have the greatest affect on a vessel’s longitudinal strength? （）

A.Collision damage to the bow，forward of the collision bulkhead
B.Grounding damage to the bilge strake，just aft of midships
C.Extensive corrosion to the centerline deck plating
D.Damage to the side shell，midway between the bilge and the stringer plate

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What term indicates a curvature of the decks in a longitudinal direction?（）

A.Deadrise
B.Camber
C.Sheer
D.Flare

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What is NOT a problem when carrying coal? （）

A.The requirement for through-ventilation
B.The corrosion some types of coal will cause to the ship
C.Spontaneous heating
D.Generation of methane gas