單項選擇題All these containers will be loaded（）deck.

A.in
B.up
C.above
D.on


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1.單項選擇題If the buoyant force on a ship’s hull is equal to the displacement tonnage，the ship will（）.

A.require ballast
B.be down by the head
C.sink
D.float

2.單項選擇題Owing to the big draft，the ship is not permitted to go alongside until the time of（）.

A.ebb tide
B.flood tide
C.spring tide
D.slack water

3.單項選擇題It’ll affect neither the draft（）the rotation of discharging.

A.or
B.and
C.nor
D.either

4.單項選擇題The center of flotation of a vessel is（）.

A.the center of volume of the immersed portion of the vessel
B.the center of gravity of the water plane
C.that point at which all the vertical downward forces of weight are considered to be concentrated
D.that point at which all the vertical upward forces of buoyancy are considered to be concentrated

5.單項選擇題The average of the forward and after drafts is the（）.

A.mean draft
B.true mean draft
C.mean of the calculated drafts
D.draft at the center of flotation

6.單項選擇題A vessel is tender if cargo weight is（）.

A.concentrated high and the double bottoms empty
B.concentrated low and the double bottoms empty
C.evenly distributed vertically with the double bottoms full
D.concentrated and with the double bottoms full

9.單項選擇題On a semisubmersible ship，reserve buoyancy is increased by the presence of void spaces above the waterline in the（）.

A.submerged hulls
B.quarters
C.columns and upper structure
D.submerged connecting structures

10.單項選擇題For a floating vessel，true mean draft is always the（）.

A.average of the observed drafts
B.draft at the center of flotation
C.draft corresponding to the calculated displacement
D.mean of the calculated drafts