海船船员
For a floating vessel, true mean draft is always the ______.A.average of the observed draftsB.draft at the center of flotationC.draft corresponding to the calculated displacementD.mean of the calculated drafts
题目
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
相似问题和答案
第1题：
A vessel is "in sight" of another vessel when ______.
A.she can be observed by radar
B.she can be observed visually from the other vessel
C.she can be plotted on radar well enough to determine her heading
D.her fog signal can be heard
第2题：
______is the number of millimeters by which the mean draft changes when a ship passes from salt water to fresh water，or vice versa，whilst floating at the loaded draft．
A.TPC
B.The Fresh Water Allowance
C.Parallel sinking of the ship
D.UKC
淡水限额允许毫米变化量，当船舶由海水进入淡水中吃水变化，或反之依然，满载浮力吃水变化。
第3题：
In the absence of external forces，adding weight on one side of a floating vessel causes the vessel to ().
A.heel until the angle of loll is reached
B.list until the center of buoyancy is aligned vertically with the center of gravity
C.trim to the side opposite TCG until all moments are equal
D.decrease draft at the center of flotation
第4题：
shape of the vessel's underwater hull remains the same
vessel's center of gravity shifts to the center of the vessel's underwater hull
vessel's center of buoyancy shifts to the center of the vessel's underwater hull
vessel's mean draft increases
第5题：
For a floating vessel, the center of flotation is the point in the waterplane ______.
A.about which the vessel lists and trims
B.which coincides with the center of buoyancy
C.which, in the absence of external forces, is always vertically aligned with the center of gravity
D.which is shown in the hydrostatic tables as VCB
对漂浮船，漂心是水线面上的一点，船舶绕该点横倾或纵倾。
第6题：
You are on a 50.3 meters long vessel with a draft of 2.7 meters and twin screws．Which statement about rescuing a survivor in the water with ship pickup is TRUE ________．
A.You should stop to windward of the man and drift down on him
B.You should stop with the man on your weather beam and twist the ship up to him
C.A pickup off the weather bow gives maximum maneuverability with the least possibility of injury to the man
D.Ship pick up should never be used with a shallow draft vessel
第7题：
A vessel restricted by its ability to manoeuvre by the nature of its work or its deep draft is__
A.Hampered vessel
B.Giving way vessel
C.Vessel not under control
D.Disabled vessel
一艘由于其工作性质或深吃水而使其操纵能力受到限制的船舶是操限船
第8题：
You are on a 165-foot (50.3 meters) long vessel with a draft of 9 feet (2.7 meters) and twin screws. Which statement about rescuing a survivor in the water with ship pickup is TRUE?
A.You should stop to windward of the man and drift down on him
B.You should stop with the man on your weather beam and twist the ship up to him
C.A pickup off the weather bow gives maximum maneuverability with the least possibility of injury to the man
D.Ship pick up should never be used with a shallow draft vessel
第9题：
You should stop to windward of the man and drift down on him
You should stop with the man on your weather beam and twist the ship up to him
A pickup off the weather bow gives maximum maneuverability with the least possibility of injury to the man
Ship pick up should never be used with a shallow draft vessel
第10题：
restricted in her ability to maneuver
in special circumstances
not under command
constrained by her draft