單項(xiàng)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


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1.單項(xiàng)選擇題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

2.單項(xiàng)選擇題A semisubmersible which will not remain upright and will assume a list either to port or starboard is likely to have().

A.a large TCG
B.a negative GM
C.excessive ballast
D.insufficient deck load

3.單項(xiàng)選擇題A disk with a horizontal line through its center,equivalent to the summer load line,is called the().

A.deadrise mark
B.maximum allowable draft mark
C.plimsoll mark
D.tonnage mark

4.單項(xiàng)選擇題A deep draft VLCC (100,000 DWT+) navigating in a narrow channel or canal().

A.draws more water than when underway in deep water
B.draws less water with an increase in speed
C.requires less power for a given speed
D.steers better under full power

5.單項(xiàng)選擇題A current moving across a lock entrance toward the river or toward the dam is called a(n)().

A.cutoff
B.outdraft
C.lockwash
D.springpool