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Freeing ports on a vessel with solid bulwarks ______.
A.prevent stress concentration in the bulwark
B.permit easy jettison of deck cargo in an emergency
C.provide openings through the bulwarks for mooring lines
D.allow water shipped on deck to flow off rapidly
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更多 “ Freeing ports on a vessel with solid bulwarks ______.A.prevent stress concentration in the bulwarkB.permit easy jettison of deck cargo in an emergencyC.provide openings through the bulwarks for mooring linesD.allow water shipped on deck to flow off rapidly ” 相关考题
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单选题Freeing ports on a vessel with solid bulwarks（）.A
prevent stress concentration in the bulwarkB
permit easy jettison of deck cargo in an emergencyC
provide openings through the bulwarks for mooring linD
allow water shipped on deck to flow off rapidly
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Towing a vessel through an ice field is not recommended except in an emergencyC
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When anchoring in ice，it is advisable to increase the scope of the chain over what is normally used for non-icing conditions
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sagging with compressive stress on main deckC
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hogging with compressive stress on main deck
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lessening the effect of environmental forcesB
even and symmetrical variable loadingC
local concentration of heavy consumablesD
increasing the metacentric height
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keep ports，doors，windows，and hatches closedB
start engines immediatelyC
ventilate before starting engineD
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单选题Topside icing that blocks freeing ports and scuppers（）.A
is usually below the center of gravity and has little effecton stabilityB
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increases the effective freeboard and increases thewind-heel affect
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compression stressB
tension stressC
shear stressD
racking stress
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单选题Freeing ports on a vessel with soild bulwards（）.A
prevent stress concentration in the bulwarkB
permit easy jettison of deck cargo in an emergencyC
provide opening through the bulwarks for mooring linesD
allow water shipped on deck to flow off rapidly
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单选题Sometimes the charter-party（）that the vessel must only use safe ports within a certain area.A
improvesB
installsC
containsD
requests
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单选题A vessel moored with two anchors,sometimes, at an exposed roadstead to（）.A
aid turing the shipB
obtain a fine bearingC
increase ship swing to wind or tideD
lighten the stress of anchor chains
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单选题A chock（）.A
is a deck fitting used to shackle gear to the deckB
permits easy jettisoning of deck cargo in an emergencyC
prevents stress concentration in the bulwarkD
provides openings through the bulwark for mooring lines
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单选题0f the following, the most important consideration for a tank vessel is（）.A
GMB
the vertical center of gravityC
the longitudinal center of gravityD
the stress on the hull
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单选题If a vessel is sagging，what kind of stress is placed on the sheer strake?（）A
CompressionB
TensionC
ThrustD
Racking
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