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单选题
Deficient oxygen content inside a chain locker can be detected with（）.
A
litmus paper
B
combustible gas indicator
C
oxygen breathing apparatus
D
oxygen indicator
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In the experiment, the burning inside the bottle can___.A. equalize the air pressure inside and outsideB. make a seal in the neck of the bottleC. finish up the oxygen inside the bottleD. produce more oxygen inside the bottle
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Which statement about entry into a space that has been sealed for a long time is TRUE ________．A.A tank that has been used to carry hazardous liquids should be tested for oxygen content，toxicity，and explosive gasesB.You can safely enter the space without a breathing apparatus if the oxygen content exceeds 14%C.The natural ventilation through the installed vents is sufficient to provide the proper oxygen contentD.The heat of the sun on upper ballast tanks，such as in a bulk carrier，may generate carbon monoxide
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Which statement about entering into a tank which has been sealed for a long time is TRUE ________．A.The tank should be tested only once to ensure the oxygen content is at least 14% before entryB.The tank must be tested at frequent intervals to ensure that hazardous gasses have not regeneratedC.The tank need not be tested for oxygen content if it is ventilated for more than 24 hoursD.If the oxygen content tests at less than 12% you should wear an approved gas mask
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Inerting means ______．A.The introduction of inert gas into a tank with the object of reducing the oxygen content to below 8% by volumeB.The introduction of inert gas into a gas free tank for the purpose of reducing the oxygen content to below 8% by volumeC.The introduction of inert gas into a cargo tank during cargo discharge to replace the volume of discharged cargoD.All of the above
考题
The opening in the deck beneath the anchor windlass that leads to the chain locker is the ______．A.Hawse pipeB.Fall pipeC.Drop-pipeD.Spill pipe
考题
The perforated，elevated bottom of the chain locker，which prevents the chains from touching the main locker bottom and allows seepage water to flow to the drains，is called a ______．A.cradleB.draftC.harpingD.manger
考题
What can cause a lack of oxygen in a chain locker ________．A.AbsorptionB.OsmosisC.EvaporationD.Oxidation
考题
Deficient oxygen content inside a chain locker can be detected with ______.A.litmus paperB.a combustible gas indicatorC.an oxygen breathing apparatusD.an oxygen indicator
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Which two statements are true about a job chain? （）(Choose two.)A、A job chain can contain a nested chain of jobs.B、The jobs in a job chain cannot have more than one dependency.C、A job of the CHAIN type can be run using event-based or time-based schedules.D、The jobs in a job chain can be executed only by using the events generated by the Scheduler
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Which two statements are true about a job chain？（）A、 A job chain can contain a nested chain of jobsB、 The jobs in a job chain cannot have more than one dependencyC、 A job of the CHAIN type can be run using event-based or time-based schedulesD、 The jobs in a job chain can be executed only by using the events generated by the Scheduler
考题
单选题The perforated，elevated bottom of the chain locker，which prevents the chains from touching the main locker bottom and allows seepage water to flow to the drains，is called a（）.A
cradleB
draftC
harpingD
manger
考题
单选题A sufficient amount of chain must be veered when anchoring a vessel to ensure（）.A
the vessel has enough room to swing while at anchorB
the anchor flukes bite into the ocean bottomC
there is a sufficient scope of chain to keep the anchor on the bottomD
there is more chain out than there is in the chain locker
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单选题The Master shall insure that the Emergency Position Indicating Radio beacon (EPIRB) is（）.A
secured inside the wheelhouseB
tested annuallyC
tested monthlyD
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单选题The Master shall insure that the Emergency Position Indicating Radiobeacon (EPIRB) is（）.A
secured inside the wheelhouseB
tested annuallyC
tested monthlyD
secured in the emergency locker
考题
单选题What can cause a lack of oxygen in a chain locker（）．A
AbsorptionB
OsmosisC
EvaporationD
Oxidation
考题
单选题Deficient oxygen content inside a chain locker can be detected with（）.A
litmus paperB
a combustible gas indicatorC
an oxygen breathing apparatusD
an oxygen indicator
考题
单选题The opening in the deck beneath the anchor windlass that leads to the chain locker is the（）.A
hawse pipeB
fall pipeC
drop-pipeD
spill pipe
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多选题Which two statements are true about a job chain?（）AA job chain can contain a nested chain of jobs.BThe jobs in a job chain cannot have more than one dependency.CA job of the CHAIN type can be run using event-based or time-based schedules.DThe jobs in a job chain can be executed only by using the events generated by the Scheduler
考题
单选题Inerting means（）.A
the introduction of inert gas into a tank with the object of reducing the oxygen content to below 8% by volumeB
the introduction of inert gas into a gas free tank for the purpose of reducing the oxygen content to below 8% by volumeC
the introduction of inert gas into a cargo tank during cargo discharge to replace the volume of discharged cargoD
All of the above
考题
单选题What can be used to measure the percentage of oxygen inside a chain locker?（）A
Flame safety lampB
Combustible gas indicatorC
Oxygen indicatorD
H2S meter
考题
单选题An oxygen indicator will detect （）.A
the amount of oxygen in a spaceB
the presence of harmful amounts of carbon monoxideC
concentrations of explosive gasD
All of the above
考题
多选题Which two statements are true about a job chain？（）AA job chain can contain a nested chain of jobsBThe jobs in a job chain cannot have more than one dependencyCA job of the CHAIN type can be run using event-based or time-based schedulesDThe jobs in a job chain can be executed only by using the events generated by the Scheduler
考题
单选题On a hydrocarbon flammability chart the line which extends from 0% to 21.8% oxygen，lying tangent to the flammability range，is called the（）.A
mimimum oxygen content lineB
critical displacement lineC
critical dilution lineD
upper threshold limit
考题
单选题Before entering the chain locker，you should（）.A
have someone standing byB
make sure there is sufficient air within the lockerC
de-energize the windlassD
All of the above
考题
单选题A sufficient amount of chain must be veered when anchoring a vessel to ensure（）.A
the vessel has enough room to swing while at anchorB
the anchor flukes bite into the ocean bottomC
there is sufficient weight from the anchor and chain to prevent draggingD
there is more chain out than there is in the chain locker
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