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单选题
Environmental loading consists of the forces caused by wind，waves，and（）.
A
drilling
B
soil reactions
C
temperature
D
current
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virtual mass increasesC
the effect of the propeller transverse thrust on yaw altersD
the ship will turn with its head towards the wind
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单选题For a vessel inclined by the wind，multiplying the buoyant force by the horizontal distance between the lines of action of the buoyant and gravity forces gives the（）.A
righting momentB
vertical momentC
longitudinal momentD
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foehnB
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A prohibition from loading a cargo from a country when the cargo may be a carrier of infectious diseasesB
Arrest of a vessel by legal authorities to satisfy claims through exercise of a maritime lienC
Damage caused by riot of the population of a portD
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require loading operations to be shut down until the atmosphere clearsB
are toxic to human lifeC
are subject to spontaneous combustionD
may be explosive in some concentrations
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单选题Sea water temporarily pumped into tanks to simulate the increased vertical loading of environmental forces is termed（）.A
preloadB
liquid variable loadC
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单选题If a vessel takes a sudden，severe list or trim from an unknown cause，you should FIRST（）.A
determine the cause before taking countermeasuresB
assume the shift is due to off-center loadingC
counterfloodD
assume the cause is environmental forces
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单选题Forces within a vessel have caused a difference between the starboard and port drafts. This difference is called（）.A
listB
heelC
trimD
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单选题A wind has caused a difference between drafts starboard and port. This difference is（）.A
listB
heelC
trimD
flotation
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单选题Forces within a vessel have caused a difference between the starboard and port drafts,This difference is called（）.A
listsB
heelC
trimD
flotation
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单选题If a vessel takes a sudden severe list or trim from an unknown cause，you should FIRST（）.A
determine the cause before taking countermeasuresB
assume the shift is due to off-center loadingC
counterflood on the side opposite the list or trimD
assume the cause is environmental forces
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单选题The centre of lateral resistance is（）.A
the center of the hydrodynamic forces acting on the underwater hull to resist the effect of the windB
the point of influence of wind on the shipC
the pivot pointD
the point on the ship's above-water structure upon which the whole force of the wind can be considered an act
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单选题Damage caused by lighting，a storm，or a sudden gust of wind may be within the exception of （）.A
act of GodB
the Queen's enemiesC
inherent vice in the goodsD
the negligence of the owner of the goods
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