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单选题
Topside icing decreases vessel stability because it is usually off-center and（）.
A
increases displacement
B
increases the height of the center of gravity
C
increases draft
D
reduces the pocketing of free surface
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考题
单选题Jettisoning weight from topside（）.A
returns the vessel to an even keelB
reduces free surface effectC
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考题
单选题On open waters，a vessel fishing is in a crossing situation with a vessel sailing located on the fishing vessel’s starboard side. Which vessel is the stand-on vessel?（）.A
The fishing vessel because it is to port of the sailing vesselB
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考题
单选题Which statement concerning the navigation of a vessel in ice is FALSE?（）A
Anchoring in the presence of ice is not recommended except in an emergencyB
Towing a vessel through an ice field is not recommended except in an emergencyC
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考题
单选题Your vessel is damaged and is listing to port. The rolling period is short. There is sufficient freeboard so that deck edge submersion is not a problem. What corrective action should be taken FIRST in regard to the vessel’s stability?（）.A
Press up any slack double-bottom tanks to eliminate free surfaceB
Flood any empty double-bottom tanks to add weight low and downC
Jettison topside weights to reduce KG and KBD
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考题
单选题Your vessel is damaged with no list，but down by the stern. There is progressive flooding and trim by the stern is increasing. What is the effect on transverse stability after the deck edge at the stern is submerged?（）A
KB increases，increasing BM and therefore GMB
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BM decreases from loss of water plane and greater volumeD
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考题
单选题During a stability test on a small passenger vessel（）.A
the vessel must be moored snuglyB
each tank must be partially full to show it does not leakC
all dunnage，tools，and extraneous items are securedD
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单选题When considering a vessel’s stability，which spaces in a general cargo vessel are the best locations for the carriage of bulk grain? （）A
Deep tanksB
Lower holdsC
Lower holds at the ends of the vesselD
'Tween-decks
考题
单选题If you are fighting a fire below the main deck of your vessel，which action is most importantconcerning the stability of the vessel? （）A
Shutting off electricity to damaged cablesB
Pumping fire-fighting water overboardC
Maneuvering the vessel so the fire is on the lee sideD
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考题
单选题A flooded lifeboat on board a vessel would adversely affect the vessel’s stability by（）.A
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考题
单选题The stability of a vessel is normally the greatest when all fuel and water tanks are full because the （）.A
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考题
单选题Master must ascertain that deck loads are stowed in such a manner as（）.A
not to affect the vessel's stability and trimB
to affect the vessel's stabilityC
to affect the vessel's trimD
to affect the vessel's atability or trim
考题
单选题You are approaching another vessel and see that it has the signal flag “O” hoisted．What is your next action（）.A
Proceed on present course and speed since the vessel is requesting a pilotB
Attempt to call the vessel on VHF radiotelephone and begin a search because the vessel has a man overboardC
Attempt to call the vessel on VHF radiotelephone because it is disabledD
Approach with caution because the vessel is stopped and making no way through the water
考题
单选题The principal danger from ice collecting on a vessel is the（）.A
decrease in capabilities of radarB
decrease in displacementC
adverse effect on trimD
loss of stability
考题
单选题Topside icing that blocks freeing ports and scuppers（）.A
is usually below the center of gravity and has little effecton stabilityB
will cause water on deck to pocket and increase stabilityC
may decrease stability by increasing free surface effect due to water on deckD
increases the effective freeboard and increases thewind-heel affect
考题
单选题Topside icing decreases vessel stability becauseit increases（）.A
displacementB
free surfaceC
draftD
KG
考题
单选题The tendency of a vessel to return to its original trim after being inclined by an external force is（）.A
equilibriumB
buoyancyC
transverse stabilityD
longitudinal stability
考题
单选题You are approaching another vessel and see that she has the signal flag “J” hoisted. What should you do?（）A
Keep well clear of the vessel because she is on fire and has dangerous cargo on board or she is leaking dangerous cargoB
Attempt to call the vessel on VHF radiotelephone because she is requesting to communicateC
Approach the vessel with caution because she is dragging her anchorD
Proceed on present course and speed since the vessel is requesting a tug
考题
单选题At all angles of inclination，the true measure of a vessel’s stability is the（）.A
metacentric heightB
displacementC
righting momentD
inclining moment
考题
单选题At sea，you are approaching a small vessel and see that it has the signal flag P hoisted. What should you do?（）.A
Proceed on present course and speed since the vessel is stopped and making no way through the waterB
Keep clear of the vessel because it has a diver downC
Attempt to call the vessel on VHF radiotelephone because someone on board requires medical assistanceD
Approach with caution because the vessel is a fishing vessel and its nets are fouled on an obstruction
考题
单选题The effect of free surface on initial stability depends upon（）.A
the amount of liquid in the compartmentB
the dimensions of the liquid surface and the vessel's displacementC
only the length of the compartmentD
the vertical position of the liquid in the vessel
考题
单选题The point to which your vessel’s center of gravity (G) may rise and still permit the vessel to have positive stability is called the（）.A
metacentric pointB
metacenterC
metacentric radiusD
tipping center
考题
单选题If the cause of a sudden severe list is negative initial stability，counterflooding into empty tanks may（）.A
increase the righting momentB
cause an increase in the righting armC
bring the vessel to an upright equilibrium positionD
cause the vessel to flop to a greater angle
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