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When measuring the oxygen content of the cargo tanks prior to loading cargoes requiring vapor recovery，check it ______.
A.one meter from the tank bottom and one meter below the tank top
B.one half the ullage of the tank and one meter below the tank top
C.one half the ullage of the tank and one meter above the tank bottom
D.at three meter intervals from the tank top to the bottom
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更多 “ When measuring the oxygen content of the cargo tanks prior to loading cargoes requiring vapor recovery，check it ______.A.one meter from the tank bottom and one meter below the tank topB.one half the ullage of the tank and one meter below the tank topC.one half the ullage of the tank and one meter above the tank bottomD.at three meter intervals from the tank top to the bottom ” 相关考题
考题
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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When referring to dry bulk cargoes，the term "flow state" ______.A.designates the state of a commodity when the ship is heeled past the angle of reposeB.relates to the suitability of loading a cargo by flowing down inclined chutesC.refers to the saturation of a dry bulk product with water to the point where it acts as a liquidD.relates to the minimum granule size of a particular product where it will flow like a liquid at an angle of 30°
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To determine which grades of cargo a tank vessel is permitted to carry you should ______.A.refer to the vessel's Certificate of InspectionB.examine the cargo tanks and fittingsC.ask the terminal supervisor or his representativeD.check the loading order
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Why is gas-freeing rarely required for LPG cargo tanks?A.LPG is compatible with all cargosB.LPG's high oxygen content makes it nonvolatileC.Cargo tanks are inspected less frequently than on oil tankersD.The cargo tanks are used for one type of cargo only
考题
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
When a non-volatile cargo is carried in a tank that has not been previously gas freed，then that tank shall ______．A.be purged with hydrocarbon gas prior to loadingB.be gas-freed after loading operationsC.not be maintained in an inert conditionD.be maintained in an inert condition
考题
Which spaces are required to be segregated from cargo tanks carrying grades A，B，C，or D cargoes ________．A.Pump roomsB.Enclosed deck spacesC.CofferdamsD.Navigation spaces
考题
When the inert gas pressure is being ______ in the cargo tanks，particular attention should be paid to obtaining an oxygen concentration．A.topped upB.bracedC.tommed downD.shored
考题
An inert gas system is designed to reduce the possibility of tank explosions by ______.A.eliminating sparks and fire in the vicinity of cargo tanksB.removing all hydrocarbon gases from the cargo tanksC.blanketing cargo tanks with inert foamD.reducing the oxygen concentration below levels necessary for combustion
考题
单选题When measuring the oxygen content of the cargo tanks prior to loading cargoes requiring vapor recovery，check it（）.A
one meter from the tank bottom and one meter below the tank topB
one half the ullage of the tank and one meter below the tank topC
one half the ullage of the tank and one meter above the tank bottomD
at three meter intervals from the tank top to the bottom
考题
单选题Petroleum cargo tanks should not be topped off at deck level when loading on a cold day because（）.A
a subsequent temperature rise will cause the cargo to overflowB
air pockets may cause the cargo to bubble out of the ullage holeC
the increased viscosity of the product requires higher loading pressure which increases the chances of a spillD
the tank valve may be stiff and a spill will occur before the valve can be closed
考题
单选题You are transporting dangerous cargo on your vessel．You must inspect this cargo（）.A
DailyB
Daily，at sea onlyC
After encountering rough weatherD
After loading and prior to arrival in port only
考题
单选题Why is gas-freeing rarely required for LPG cargo tanks? （）A
LPG is compatible with all cargosB
LPG's high oxygen content makes it nonvolatileC
Cargo tanks are inspected less frequently than on oil tankersD
The cargo tanks are used for one type of cargo only
考题
单选题To determine which grades of cargo a tank vessel is permitted to carry you should（）.A
refer to the vessel's Certificate of InspectionB
examine the cargo tanks and fittingsC
ask the terminal supervisor or his representativeD
check the loading order
考题
单选题Cargo contaminated due to failure to provide clean holds prior to loading is an example of（）.A
lack of due diligenceB
restraint of princesC
inherent viceD
latent defect
考题
单选题A ship is responsible for the cargo loaded or unloaded（）.A
only when the cargo is within its railB
after the cargo is checked by tallymenC
as soon as the cargo loading or unloading beginsD
during the time when loading or unloading is going on
考题
单选题Cargo transfer operations on a tank vessel need NOT be stopped when（）.A
a tug comes alongside while the tanker is loading gradeB
and E cargoes B. a large，fresh oil spill is discovered immediately adjacent to the side of the tankerC
there is an electrical storm in the vicinityD
there is a fire on the dock or on a nearby vessel
考题
单选题When checking the oxygen content of the cargo tanks prior to loading cargoes requiring vapor recovery，the atmosphere must be sampled（）.A
one meter from the tank bottom and one meter below the tank topB
one half the ullage of the tank and one meter below the tank topC
one half the ullage of the tank and one meter above the tank bottomD
at three meter intervals from the tank top
考题
单选题An inert gas system is designed to reduce the possibility of tank explosions by（）.A
eliminating sparks and fire in the vicinity of cargo tanksB
removing all hydrocarbon gases from the cargo tanksC
blanketing cargo tanks with inert foamD
reducing the oxygen concentration below levels necessary for combustion
考题
单选题The ship will be responsible for the cargo loaded or unloaded（）.A
only when the cargo is within its railB
during the time when loading or ynloading is going onC
after the cargo is checked by tallymenD
as soon as loading or discharging begins
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
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Sufficient cargo tanks shall be（）prior to each ballast voyage in order that，taking into account the tanker’s trading pattern and expected weather conditions，ballast water is put only into cargo tanks which have been crude oil washed.A
inertedB
crude oil washedC
gas freedD
batterned down
考题
单选题Which organization would conduct a survey of the insulation in a reefer compartment prior to loading cargo? （）A
PRC Customs ServiceB
OSHAC
CCSD
CCIQ
考题
单选题When referring to dry bulk cargoes，the term “flow state”（）.A
designates the state of a commodity when the ship is heeled past the angle of reposeB
relates to the suitability of loading a cargo by flowing down inclined chutesC
refers to the saturation of a dry bulk product with water to the point where it acts as a liquidD
relates to the minimum granule size of a particular product where it will flow like a liquid at an angle of 30°
考题
单选题Each inert gas system must be designed to supply the cargo tanks with a gas，or mixture of gasses，that has an oxygen content by volume of（）.A
5% or lessB
10% or lessC
15% or lessD
20% or less
考题
单选题To determine which grades of cargo a tanker is permitted to carry you should（）.A
refer to the vessel's Certificate of InspectionB
examine the cargo tanks and fittingsC
ask the terminal supervisor or his representativeD
check the loading order
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