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 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 cleaned
B.The hoses to portable cleaning machines should be disconnected before the machines are removed from the tank
C.The principal hazard with steaming cargo tanks is raising the ambient temperature above the flame point of the cargo residue
D.Steam cleaning and water washing are both capable of generating electrostatic charges within a tank
相关考题：
Evaluate the SQL statement: TRUNCATE TABLE DEPT; Which three are true about the SQL statement? () A. It releases the storage space used by the table.B. It does not release the storage space used by the table.C. You can roll back the deletion of rows after the statement executes.D. You can NOT roll back the deletion of rows after the statement executes.E. An attempt to use DESCRIBE on the DEPT table after the TRUNCATE statement executes will display an error.F. You must be the owner of the table or have DELETE ANY TABLE system privileges to truncate the DEPT table
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
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
You are on a cargo vessel carrying toluol in bulk in portable tanks. Which is a requirement for pumping the toluol?A.Hose connections to the tank must be made with a minimum of three boltsB.There must be water pressure on the fire mainC.You must shut down if another vessel comes alongsideD.If transferring at anchor，you must display a red flag by day and a red light at night
You are on a multiple product tanker and carrying methyl acrylate，diethanolamine，and triethylamine. Which statement is TRUE?A.Methyl acrylate may be loaded in a tank adjacent to diethanolamine but not triethylamineB.The heating coils to the cargo tank loaded with methyl acrylate must be blanked offC.Valve components made of aluminum，copper，or zinc may not be in contact with the cargoesD.Each crew member working on deck must have an emergency escape breathing apparatus
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
You are scheduled to load a bulk shipment of steel turnings．Which statement is TRUE ________．A.The primary hazard of this cargo is that it is subject to spontaneous heating and ignitionB.The shipping papers should describe this cargo as Waste，Steel BoringsC.After loading，you may not sail if the temperature in each hold of steel turnings exceeds 54℃D.This cargo may not be transported in bulk unless a special permit is issued by the competent authorities
A loaded hopper barge with independent tanks has a placard，with alternating red and white quadrants，on each side and end．Which statement concerning this barge is TRUE ________．A.The cargo will spontaneously ignite if released to the atmosphereB.You must operate this barge as a lead bargeC.The barge should be spotted as far away from the towboat as possibleD.The barge must be in a protected position within the tow
Every existing product carriers of 40，000 tons deadweight and above shall be provided with segregated ballast tanks and shall comply with the specified requirements，or，alternatively，operate with ______ in accordance with the convention．A.crude oil washingB.dedicated clean ballast tanksC.cargo tank cleaning systemD.oil record book
Existing crude oil tankers may，______ being provided with segregated ballast tanks or operating with a cargo tank cleaning procedure using crude oil washing，operate with dedicated clean ballast tanks in accordance with the specified provision of the Regulation．A.As perB.In the consequence ofC.In accordance withD.In lieu of
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
Which statement is TRUE concerning deep well self-priming pumps ________．A.When loading oil cargo，it is always loaded via the discharge line through to the pump until the tank is topped offB.Stripping systems are generally eliminated for the purposes of cargo handlingC.In recent years deep well pumps have become increasingly unpopular in product tankers and medium size crude shipsD.There is no danger of damaging the pump from overheating
You are on a tanker designed to carry molten sulfur．Which statement is TRUE ________．A.There must be two portable toxic vapor detectors on boardB.The cargo tank ventilation system must maintain the H2S vapor concentration at 1.85% or more by volumeC.Cargo temperature may be taken by portable thermometersD.The pressure in the heating coils in the tanks must be less than that of the cargo exerted on them
材料：Every new crude oil tanker of 20000 tons deadweight and above shall be fitted with a cargo tank cleaning system using crude oil washing．The Administration shall undertake to ensure that the system fully complies with the requirements of MARPOL within one year after the tanker was first engaged in the trade of carrying crude oil or by the end of the third voyage carrying crude oil suitable for crude oil washing，whichever occurs later．Unless such oil tanker carries crude oil which is not suitable for crude oil washing，the oil tanker shall operate the system in accordance with the requirements of that Regulation．Every existing crude oil tanker of 40000 tons deadweight and above shall be provided with segregated ballast tanks．Existing crude oil tankers may，in lieu of being provided with segregated ballast tanks，operate with a cargo tank cleaning procedure using crude oil washing unless the crude oil tanker is intended to carry crude oil which is not suitable for crude oil washing．Existing crude oil tankers may，in lieu of being provided with segregated ballast tanks or operating with a cargo tank cleaning procedure using crude oil washing，operate with dedicated clean ballast tanks in accordance with the provision of Regulation 13A of this Annex for the following period：for crude oil tankers of 70 000 tons deadweight and above，until two years after the date of entry into force of the present Convention；and for crude oil tankers of 40000 tons deadweight and above but below 70 000 tons deadweight，until four years after the date of entry into force of the present Convention．问题：A new crude oil tanker of 30000 tons deadweight shall ________．A.be fitted with crude oil washing systemB.operate dedicated clean ballast tanksC.be fitted with segregated ballast tanksD.be fitted with washing system other than crude oil washing systemExcept________，the existing crude oil tankers may operate with any of the following installations．A.segregated ballast tanksB.cargo tank cleaning procedure using crude oil washingC.operate with dedicated clean ballast tanksD.protection positionThe latest date for an existing crude oil tanker of 60000 tons deadweight to install dedicated clean ballast tanks is ________．A.until two years after the date of entry into force of the present ConventionB.until four years after the date of entry into force of the present ConventionC.within one year after the tanker was first engaged in the trade of carrying crude oilD.by the end of the third voyage carrying crude oilIt is inferred that ________．A.all oil tankers，both the newly built and existing ones，shall be fitted with a cargo tank cleaning system using crude oil washingB.a new crude oil tanker of 20 000 tons deadweight and above may，in lieu of being provided with crude oil washing system，operate with segregated ballast tanksC.a new crude oil tanker of 20 000 tons deadweight and above may，in lieu of being provided with crude oil washing system，operate with dedicated clean ballast tanksD.a new crude oil tanker of 20 000 tons deadweight and above shall not be fitted with a cargo tank cleaning system using crude oil washing immediately after her entry in the trade of carrying crude oil请帮忙给出每个问题的正确答案和分析，谢谢！
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！
By regulation，cargo tanks must be inert before and during what operation?A.StrippingB.LoadingC.CleaningD.Crude oil washing
Evaluate the SQL statement: TRUNCATE TABLE DEPT;Which three are true about the SQL statement? （）A、It releases the storage space used by the table.B、It does not release the storage space used by the table.C、You can roll back the deletion of rows after the statement executes.D、You can NOT roll back the deletion of rows after the statement executes.E、An attempt to use DESCRIBE on the DEPT table after the TRUNCATE statement executes will display an error.F、You must be the owner of the table or have DELETE ANY TABLE system privileges to truncate the DEPT table.
Evaluate the SQL statement:TRUNCATE TABLE DEPT;Which three are true about the SQL statement? （）A、It releases the storage space used by the table.B、It does not release the storage space used by the table.C、You can roll back the deletion of rows after the statement executes.D、You can NOT roll back the deletion of rows after the statement executes.E、An attempt to use DESCRIBE on the DEPT table after the TRUNCATE statement executes will display an error.F、You must be the owner of the table or have DELETE ANY TABLE system privileges to truncate the DEPT table
单选题You are on a cargo vessel carrying toluol in bulk in portable tanks. Which is a requirement for pumping the toluol? （）AHose connections to the tank must be made with a minimum of three boltsBThere must be water pressure on the fire mainCYou must shut down if another vessel comes alongsideDIf transferring at anchor，you must display a red flag by day and a red light at night
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You are loading a cargo tank on your container ship. The tank displays the red label shown. Which statement is TRUE? （）AThe tank contains propyleneBThe tank's volume is 1077 cubic feetCThere are three tanks in the shipmentDThe tank contains an oxidizing material
单选题Crude oil washing of cargo tanks has the following advantages except for （）Areducing the erosion of the cargo tanksBincreasing the total quantity of oil to carryCreducing the quantity of water contained in oilDreducing cargo discharged time
单选题A SYSTEM OF CLEANING THE TANKS BY WASHING THEM WITH THE CARGO OF CRUDE OIL WHILE IT IS BEING DISCHARGED is known as（）.ACOWBLOTCCBTDcoferdam
单选题You are on a multiple product tanker and carrying methyl acrylate，diethanolamine，and triethylamine. Which statement is TRUE? （）AMethyl acrylate may be loaded in a tank adjacent to diethanolamine but not triethylamineBThe heating coils to the cargo tank loaded with methyl acrylate must be blanked offCValve components made of aluminum，copper，or zinc may not be in contact with the cargoesDEach crew member working on deck must have an emergency escape breathing apparatus
单选题Existing crude oil tankers may，（）being provided with segregated ballast tanks or operating with a cargo tank cleaning procedure using crude oil washing，operate with dedicated clean ballast tanks in accordance with the specified provision of the Regulation.Aas perBin the consequence ofCin accordance withDin lieu of
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