The tanks should then be ______ immediately after the measurements or cargo samples have been taken．A.topped upB.bracedC.tommed downD.re-pressurized
The tanks should then be ______ immediately after the measurements or cargo samples have been taken．
A.topped up
B.braced
C.tommed down
D.re-pressurized
相关考题：
In the event of fire in a machinery space，______.A.the fixed carbon dioxide system should be used only when all other means of extinguishment have failedB.the fixed carbon dioxide system should be used immediately，as it is the most efficient means of extinguishmentC.water in any form should not be used as it will spread the fireD.the space should be opened 5 minutes after flooding CO2 to prevent injury to personnel
When carrying a cargo of asphalt or molten sulfur，which are carried at temperatures of over 300°F，one of the biggest dangers is ______.A.water in the tanks or pipelinesB.having the cargo too coolC.explosion of vapors after dischargeD.inadequate ullage space
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
In the case of new crude oil tankers，the additional ballast permitted shall be carried in cargo tanks only if such tanks have been ______ before departure from an oil unloading port or terminal.A.inertedB.crude oil washedC.dilutedD.cleaned
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
You are cleaning the tanks after carrying a cargo of crude oil. Which statement is TRUE?A.Washing water should be recirculated if possible because it has the same electric potential as the cargo tank being cleanedB.The hoses to portable cleaning machines should be disconnected before the machines are removed from the tankC.The principal hazard with steaming cargo tanks is raising the ambient temperature above the flame point of the cargo residueD.Steam cleaning and water washing are both capable of generating electrostatic charges within a tank
You have water washed your cargo tanks using the fixed machines．What should you do before using portable machines to clean areas screened from the wash of the fixed machine by structural members ________．A.Ventilate the tank to eliminate any electrostatically charged mistB.Attach the water supply hose to the portable machine after the cleaning head is positioned inside the tankC.Insure that the tanks are not stripped until the final wash is startedD.Ground the fixed machines to eliminate any electrostatic buildup on the cleaning head
Valves on steam-smothering lines to cargo tanks shall be set with ______．A.The master control valve shut and valves to individual cargo tanks shutB.The master control valve open and valves to individual cargo tanks shutC.The master control valve shut and valves to individual cargo tanks openD.All valves open
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
You are on a tanker discharging oil．When all of the oil that the main cargo pumps can handle is pumped out of a tank，the remainder is ______．A.Stripped out and pumped directly ashore into the mainline as the remaining cargo tanks are pumped out with the main pumpsB.Stripped to one tank and then pumped out with the main pumpsC.Stripped out and pumped directly ashore after all the tanks have been emptied by the main pumpsD.Gravitated to the centers from the wings and pumped out with the main pumps
材料：The crude oil washing installation and associated equipment and arrangements shall comply with the requirements established by the Administration．Such requirements shall contain at least all the provisions of Specifications for the Design，Operation and Control of Crude Oil Washing Systems adopted by the International Conference on Tanker Safety and Pollution Prevention，1978，in Resolution 15 and as may be revised by the Organization．An inert gas system shall be provided in every cargo tank and slop tank in accordance with the appropriate Resolutions of Chapter II-2 of SOLAS．With respect to the ballasting of cargo tanks，sufficient cargo tanks shall be crude oil washed prior to each ballast voyage in order that，taking into account the tankers trading pattern and expected weather conditions，ballast water is put only into cargo tanks which have been crude oil washed. Every oil tanker operating with crude oil washing systems shall be provided with an Operations and Equipment Manual detailing the system and equipment and specifying operational procedures．Such a Manual shall be to the satisfaction of the Administration and shall contain all the information set out in the Specifications referred to in this Regulation．If an alteration affecting the crude oil washing system is made，the Operations and Equipment Manual shall be revised accordingly．问题：According to this passage，with respect to the ballasting of cargo tanks，ballast water is put only into ________．A.slop tanks which have been cleaned with waterB.gas freed cargo tanksC.inertized cargo tanksD.cargo tanks which have been crude oil washed________ shall be approved by the Administration．A.Specifications for the Design，Operation and Control of Crude Oil Washing SystemsB.Appropriate Resolutions of Chapter II-2 of SOLASC.An Operations and Equipment Manual detailing the crude oil washing system and equipment and specifying operational proceduresD.International Conference on Tanker Safety and Pollution Prevention，1978This paragraph is most likely extracted from________．A.MARPOL 73/78B.SOLASC.IBCD.IGCIt can be concluded that ________．A.it is not necessary to do crude oil washing prior to ballast voyageB.taking into account the tanker's trading pattern and expected weather conditions，it is sometimes necessary to do crude oil washing after each ballast voyageC.if it is possible ballast water shall always be put into cargo tanks prior to commencing their crude oil washing operationsD.sufficient cargo tanks shall be crude oil washed prior to each ballast voyage in order that the tanker could be kept properly ballasted without breaking any regulations in connection with ballasting of cargo tanks请帮忙给出每个问题的正确答案和分析，谢谢！
单选题0il product samples should be taken from the（）.Adock riserBships cargo tanksCshore tank dischargeDAll of the above
单选题Why is gas-freeing rarely required for LPG cargo tanks? （）ALPG is compatible with all cargosBLPG's high oxygen content makes it nonvolatileCCargo tanks are inspected less frequently than on oil tankersDThe cargo tanks are used for one type of cargo only
单选题You are cleaning the tanks after carrying a cargo of crude oil. Which statement is TRUE? （）AWashing water should be recirculated if possible because it has the same electric potential as the cargo tank being cleanedBThe hoses to portable cleaning machines should be disconnected before the machines are removed from the tankCThe principal hazard with steaming cargo tanks is raising the ambient temperature above the flame point of the cargo residueDSteam cleaning and water washing are both capable of generating electrostatic charges within a tank
单选题To determine which grades of cargo a tank vessel is permitted to carry you should（）.Arefer to the vessel's Certificate of InspectionBexamine the cargo tanks and fittingsCask the terminal supervisor or his representativeDcheck the loading order
单选题Immediately after any diesel engine is started, the engineer should check the （）Acrankcase pressureBlube oil pressureCsaltwater pressureDexhaust temperature
单选题When carrying a cargo of asphalt or molten sulfur，which are carried at temperatures of over 300°F，one of the biggest dangers is（）.Awater in the tanks or pipelinesBhaving the cargo too coolCexplosion of vapors after dischargeDinadequate ullage space
单选题Immediately after abandoning a vessel, lookouts should be posted aboard liferafts to look for（）Asurvivors in the waterBfood and waterClandDbad weather
单选题After fuel tanks have been topped off, which of the listed procedures should be followed next?（）AThe pressure-vacuum relief valve should be resetBThe tanks should be made seaworthy to prevent contaminationCThe tanks should be sounded to make sure the levels are not risingDThe tanks should be marked with a bull stamp on the manifold filling valve
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.AinertedBcrude oil washedCgas freedDbatterned down
单选题Oil product samples should be taken from the（）.Adock riserBship's cargo tanksCshore tank dischargeDAll of the above
单选题按照SOLAS的油船货油舱的隔离的要求：Cargo pump-rooms， cargo tanks， slop tanks and cofferdams shall be positioned forward of machinery spaces. However， oil fuel bunker tanks need not be forward of machinery spaces. Cargo tanks and slop tanks shall be isolated from machinery spaces by cofferdams， cargo pump-rooms， oil bunker tanks or ballast tanks. Pump-rooms containing pumps and their accessories for ballasting those spaces situated adjacent to cargo tanks and slop tanks and pumps for oil fuel transfer， shall be considered as equivalent to a cargo pump-room within the context of this regulation provided that such pump rooms have the same safety standard as that required for cargo pump-rooms.问：对于某29.7万载重吨的VLCC船型，关于货油舱的隔离，下列哪一项不必位于机器处所的前方：（）A货油泵舱；B货油舱；C污油舱（SLOP TANK）；D燃油舱
单选题To determine which grades of cargo a tanker is permitted to carry you should（）.Arefer to the vessel's Certificate of InspectionBexamine the cargo tanks and fittingsCask the terminal supervisor or his representativeDcheck the loading order
单选题In the case of new crude oil tankers，the additional ballast permitted shall be carried in cargo tanks only if such tanks have been（）before departure from an oil unloading port or terminal.AinertedBcrude oil washedCdilutedDcleaned