单项选择题For an upright vessel,draft is the vertical distance between the keel and the().

A.waterline
B.freeboard deck
C.plimsoll mark
D.amidships section


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1.单项选择题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

2.单项选择题Deballasting a double bottom has what affect on KG?()

A.KG is increased
B.KG is decreased
C.KG is not affected
D.KG increases at light drafts and decreases at deep drafts

3.单项选择题Although KG for a ship in lightweight is relatively high,the vessel is stiff because().

A.KM is small
B.KM is high
C.BL is small
D.KB is large

4.单项选择题Allowance for fresh water for all freeboards other than timber 25mm. This wording is likely to appear in().

A.INTERNATIONAL LOAD LINE CERTIFICATE
B.PASSENGER SHIP SAFETY CERTIFICATE
C.CARGO SHIP SAFETY CONSTRUCTION CERTIFICATE
D.GENERAL DECLARATION

5.单项选择题After transferring a weight forward on a vessel,the draft at the center of flotation will().

A.change,depending on the location of the LCG
B.increase
C.decrease
D.remain constant

8.单项选择题A vessel would be referred to as tender when the weight of the cargo is().

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

9.单项选择题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

10.单项选择题A tank which carries liquid is dangerous to the stability of a vessel when it is().

A.low in the vessel
B.completely empty
C.completely full
D.slack