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

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 triethylamine

B.The heating coils to the cargo tank loaded with methyl acrylate must be blanked off

C.Valve components made of aluminum，copper，or zinc may not be in contact with the cargoes

D.Each crew member working on deck must have an emergency escape breathing apparatus

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 ignition

B.The shipping papers should describe this cargo as Waste，Steel Borings

C.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

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 washing

B.dedicated clean ballast tanks

C.cargo tank cleaning system

D.oil record book

Which spaces are required to be segregated from cargo tanks carrying grades A，B，C，or D cargoes ________．

A.Pump rooms

B.Enclosed deck spaces

C.Cofferdams

D.Navigation spaces

You are on a tanker designed to carry molten sulfur．Which statement is TRUE ________．

A.There must be two portable toxic vapor detectors on board

B.The cargo tank ventilation system must maintain the H2S vapor concentration at 1.85% or more by volume

C.Cargo temperature may be taken by portable thermometers

D.The pressure in the heating coils in the tanks must be less than that of the cargo exerted on them

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 tanker&39;s 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 water

B.gas freed cargo tanks

C.inertized cargo tanks

D.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 Systems

B.Appropriate Resolutions of Chapter II-2 of SOLAS

C.An Operations and Equipment Manual detailing the crude oil washing system and equipment and specifying operational procedures

D.International Conference on Tanker Safety and Pollution Prevention，1978

This paragraph is most likely extracted from________．A.MARPOL 73/78

B.SOLAS

C.IBC

D.IGC

It can be concluded that ________．A.it is not necessary to do crude oil washing prior to ballast voyage

B.taking into account the tanker's trading pattern and expected weather conditions，it is sometimes necessary to do crude oil washing after each ballast voyage

C.if it is possible ballast water shall always be put into cargo tanks prior to commencing their crude oil washing operations

D.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！

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 mist

B.Attach the water supply hose to the portable machine after the cleaning head is positioned inside the tank

C.Insure that the tanks are not stripped until the final wash is started

D.Ground the fixed machines to eliminate any electrostatic buildup on the cleaning head

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 atmosphere

B.You must operate this barge as a lead barge

C.The barge should be spotted as far away from the towboat as possible

D.The barge must be in a protected position within the tow

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 per

B.In the consequence of

C.In accordance with

D.In lieu of

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 off

B.Stripping systems are generally eliminated for the purposes of cargo handling

C.In recent years deep well pumps have become increasingly unpopular in product tankers and medium size crude ships

D.There is no danger of damaging the pump from overheating

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 system

B.operate dedicated clean ballast tanks

C.be fitted with segregated ballast tanks

D.be fitted with washing system other than crude oil washing system

Except________，the existing crude oil tankers may operate with any of the following installations．A.segregated ballast tanks

B.cargo tank cleaning procedure using crude oil washing

C.operate with dedicated clean ballast tanks

D.protection position

The 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 Convention

B.until four years after the date of entry into force of the present Convention

C.within one year after the tanker was first engaged in the trade of carrying crude oil

D.by the end of the third voyage carrying crude oil

It 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 washing

B.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 tanks

C.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 tanks

D.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！

By regulation，cargo tanks must be inert before and during what operation?

A.Stripping

B.Loading

C.Cleaning

D.Crude oil washing