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单选题
The wooden plug inserted in the vent of a damaged tank of a ship should be removed in case it is decided to（）.
A
pump from the damaged tank
B
fight a fire
C
abandon the rig
D
use the crossover system
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Which statement is TRUE concerning protection of double bottom tanks against excessive pressure?A.Each vent for the tank must be equal to the area of the tank filling lineB.The tanks must be protected by overflowsC.The total area of the vents or the overflow shall be at least equal to the area of the fill lineD.There must be twice as much vent area as the area of the fill line
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dewater the compartmentB
establish and maintain flooding boundariesC
secure power to the compartmentD
counter flood to maintain even keel
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单选题Your vessel is damaged and listing to port. There is a short rolling period around the angle of list. The portside freeboard is reduced to 1 foot. There is no trim and the weather is calm. You should FIRST（）.A
press up a slack double bottom tank on the port sideB
fill an empty centerline double bottom tankC
pump out a slack marine portable tank located on the portside amidshipsD
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考题
单选题If the Certificate of Inspection of a damaged tank barge has expired，which certificate may be issued to allow its movement to a repair facility? （）A
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单选题The number or name of a tank barge shall be（）.A
displayed in at least 4 different positions on the bargeB
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单选题The Certificate of Inspection of a damaged tank barge has expired. What certificate authorizes the barge to move to a repair facility for repair and inspection?（）A
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Change of EmploymentC
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单选题In the event of damage to the DEEP WATER SHIP which results in flooding to one of the lower-hull tanks，pump from（）.A
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单选题Before a tank is to be crude oil washed，the oxygen content in the tank must be measured at a position（）.A
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at the top of the tankC
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单选题Many vessels are provided with flume tanks，which also have a dump tank located under the flume tanks. In the event the ship is damaged，you could dump the flume tanks into the dump tank which would（）.A
reduce the free surface effect and raise the KGB
not have any effect on free surface and raise the KGC
reduce the free surface effect and lower the KGD
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考题
单选题An inert gas system installed on a tanker is designed to（）.A
aid in the stripping and cleaning of cargo tanksB
increase the rate of discharge of cargoC
force toxic and explosive fumes from a cargo tank to vent to the outside atmosphereD
lower the oxygen levels inside cargo tanks，making explosion nearly impossible
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单选题When fueling has been completed（）.A
the fuel tank fill pipe should be left open to allow vapors to vent from the tankB
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all hatches should be opened and all compartments should be ventilatedD
open the fuel line and drain a small amount of gasoline into the bilge to clear the line of sediment
考题
单选题A wooden plug fitted tightly in the vent of a damaged tank may prevent the tank from（）.A
filling completelyB
developing free surfaceC
developing free surface momentD
collapsing
考题
单选题The wooden plug inserted in the vent of a damaged tank should be removed if you are going to （）.A
pump from the damaged tankB
fight a fireC
abandon shipD
use the crossover system
考题
单选题Which statement is TRUE concerning protection of double bottom tanks against excessive pressure? （）A
Each vent for the tank must be equal to the area of the tank filling lineB
The tanks must be protected by overflowsC
The total area of the vents or the overflow shall be at least equal to the area of the fill lineD
There must be twice as much vent area as the area of the fill line
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单选题In any diesel engine closed freshwater cooling system, the lowest pressure exists at the （）.A
jacket water outletB
cooling water pump outletC
heat exchanger outletD
expansion tank atmospheric vent
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