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单选题
The main body of a vessel is the （）.
A
hull
B
superstructure
C
engine room
D
poop
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从水面到甲板之间的高度称之为干舷。（）A、The height from the bottom of a vessel to the weather deck is called freeboard.B、The depth from water level to the bottom of a vessel is called freeboard.C、The length from the bow to stern of a vessel is called freeboard.D、The height from water level to the main deck is called freeboard.
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单选题船舶的主体是船壳。（）A
The main body of a vessel is the hull.B
The main body of a vessel is the superstructure.C
The main body of a vessel is the engine room.D
The main body of a vessel is the poop.
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单选题If you are fighting a fire below the main deck of your vessel，which action is most important concerning the stability of the vessel?（）.A
Shutting off electricity to damaged cablesB
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单选题Your vessel has a midships engine room and the cargo is concentrated in the end holds．The vessel is（）.A
sagging with tensile stress on main deckB
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hogging with compressive stress on main deck
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单选题On a single-screw vessel the stern frame（）.A
furnishes support to the rudder，propeller shaft，and transom frameB
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provides foundations for the main propulsion enginesD
transfers the driving force of the propeller to the hull
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单选题Solid green arrows on the main body of a pilot chart indicate （）.A
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forward and outboard of all obstructionsB
forward and inboard of all obstructionsC
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单选题Your vessel is equipped with a fixed C02 system and a fire main system. In the event of an electrical fire in the engine room what is the correct procedure for fighting the fire?（）.A
Use the C02 system and evacuate the engine roomB
Use the fire main system and evacuate the engine roomC
Evacuate the engine room and use the C02 systemD
Evacuate the engine room and use the fire main system
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单选题When a vessel is stationary and in a hogging condition，the main deck is under（）.A
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shear stressD
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单选题After abandoning a vessel，water that is consumed within the first 24 hours will（）.A
pass through the body with little absorbed by the systemB
help to prevent fatigueC
quench thirst for only 2 hoursD
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单选题During the watch at sea （） should be logged or recorded in the engine log book.A
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单选题The function of the bilge keel is to（）.A
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单选题Free Radio Pratique will be granted by the Port Health Office in the following case （） .A
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adjusting the position of the intermediate bearingB
changing the position of the main engine installationC
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单选题When cargo is shifted from the main deck into the lower hold of a vessel,（）.A
The metacenter will move downwardB
The GM will increaseC
The center of buoyancy will move upwardD
The list of the vesel will become great
考题
单选题从水面到甲板之间的高度称之为干舷。（）A
The height from the bottom of a vessel to the weather deck is called freeboard.B
The depth from water level to the bottom of a vessel is called freeboard.C
The length from the bow to stern of a vessel is called freeboard.D
The height from water level to the main deck is called freeboard.
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