單項(xiàng)選擇題Beams are cambered to().

A.increase their strength
B.provide drainage from the decks
C.relieve deck stress
D.All of the above


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1.單項(xiàng)選擇題As the displacement of a vessel increases,the detrimental effect of free surface().

A.increases
B.decreases
C.remains the same
D.may increase or decrease depending on the fineness of the vessel's form

2.單項(xiàng)選擇題An unstable upright equilibrium position on a vessel means that the metacenter is().

A.lower than the center of gravity
B.at the same height as the center of gravity
C.higher than the baseline
D.on the longitudinal centerline

3.單項(xiàng)選擇題Aboard a vessel,multiplying a load’s weight by the distance of the load’s center of gravity from the centerline results in the load’s().

A.TCG
B.transverse moment
C.righting moment
D.transverse free surface moment

4.單項(xiàng)選擇題Aboard a vessel,dividing the sum of the longitudinal moments by the total weight yields the vessel’s().

A.inclining moments
B.righting moments
C.vertical moments
D.longitudinal position of the center of gravity