單項(xiàng)選擇題When a wind force causes a floating ship to heel to a static angle,the().

A.centers of buoyancy and gravity are in the same vertical line
B.righting moment equals the wind-heeling moment
C.downflooding point is below water
D.deck-edge immersion occurs


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1.單項(xiàng)選擇題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

2.單項(xiàng)選擇題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

3.單項(xiàng)選擇題What term indicates a curvature of the decks in a longitudinal direction?()

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

4.單項(xiàng)選擇題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

5.單項(xiàng)選擇題TRANSVERSE MOVEMENT OF CARGO,ESPECIALLY BULK,CAUSED BY ROLLING OR A HEAVY LIST defines().

A.Shifting cargo
B.Moving cargo
C.Removing cargo
D.Trimming cargo