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

题目

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

相似考题

1.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

2.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

3.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

4.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°

参考答案和解析
正确答案：B
更多“When measuring the oxygen content of the cargo tanks prior to loading cargoes requiring va ”相关问题

  • 第1题：

    Inerting means ______．

    A.The introduction of inert gas into a tank with the object of reducing the oxygen content to below 8% by volume

    B.The introduction of inert gas into a gas free tank for the purpose of reducing the oxygen content to below 8% by volume

    C.The introduction of inert gas into a cargo tank during cargo discharge to replace the volume of discharged cargo

    D.All of the above


    正确答案：D

  • 第2题：

    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


    正确答案：D

  • 第3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 tanks

    B.removing all hydrocarbon gases from the cargo tanks

    C.blanketing cargo tanks with inert foam

    D.reducing the oxygen concentration below levels necessary for combustion


    正确答案：D
    惰性气体系统用于减少油舱爆炸的可能性是通过降低氧气浓度到低于燃烧必需的水平。

  • 第4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 overflow

    B

    air pockets may cause the cargo to bubble out of the ullage hole

    C

    the increased viscosity of the product requires higher loading pressure which increases the chances of a spill

    D

    the tank valve may be stiff and a spill will occur before the valve can be closed


    正确答案： B
    解析： 暂无解析

  • 第5题：

    单选题
    Why is gas-freeing rarely required for LPG cargo tanks? （）
    A

    LPG is compatible with all cargos

    B

    LPG's high oxygen content makes it nonvolatile

    C

    Cargo tanks are inspected less frequently than on oil tankers

    D

    The cargo tanks are used for one type of cargo only


    正确答案： A
    解析： 暂无解析

  • 第6题：

    单选题
    Cargo contaminated due to failure to provide clean holds prior to loading is an example of（）.
    A

    lack of due diligence

    B

    restraint of princes

    C

    inherent vice

    D

    latent defect


    正确答案： A
    解析： 暂无解析

  • 第7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 grade

    B

    and E cargoes B. a large，fresh oil spill is discovered immediately adjacent to the side of the tanker

    C

    there is an electrical storm in the vicinity

    D

    there is a fire on the dock or on a nearby vessel


    正确答案： D
    解析： 暂无解析

  • 第8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 tanks

    B

    removing all hydrocarbon gases from the cargo tanks

    C

    blanketing cargo tanks with inert foam

    D

    reducing the oxygen concentration below levels necessary for combustion


    正确答案： C
    解析： 暂无解析

  • 第9题：

    单选题
    An inert gas system installed on a tanker is designed to（）.
    A

    aid in the stripping and cleaning of cargo tanks

    B

    increase the rate of discharge of cargo

    C

    force toxic and explosive fumes from a cargo tank to vent to the outside atmosphere

    D

    lower the oxygen levels inside cargo tanks，making explosion nearly impossible


    正确答案： B
    解析： 暂无解析

  • 第10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

    inerted

    B

    crude oil washed

    C

    gas freed

    D

    batterned down


    正确答案： A
    解析： 暂无解析

  • 第11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 repose

    B

    relates to the suitability of loading a cargo by flowing down inclined chutes

    C

    refers to the saturation of a dry bulk product with water to the point where it acts as a liquid

    D

    relates to the minimum granule size of a particular product where it will flow like a liquid at an angle of 30°


    正确答案： D
    解析： 暂无解析

  • 第12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 Inspection

    B

    examine the cargo tanks and fittings

    C

    ask the terminal supervisor or his representative

    D

    check the loading order


    正确答案： A
    解析： 暂无解析

  • 第13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 loading

    B.be gas-freed after loading operations

    C.not be maintained in an inert condition

    D.be maintained in an inert condition


    正确答案：D

  • 第14题：

    When the inert gas pressure is being ______ in the cargo tanks，particular attention should be paid to obtaining an oxygen concentration．

    A.topped up

    B.braced

    C.tommed down

    D.shored


    正确答案：A

  • 第15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 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


    正确答案： A
    解析： 暂无解析

  • 第16题：

    单选题
    You are transporting dangerous cargo on your vessel．You must inspect this cargo（）.
    A

    Daily

    B

    Daily，at sea only

    C

    After encountering rough weather

    D

    After loading and prior to arrival in port only


    正确答案： D
    解析： 暂无解析

  • 第17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 Inspection

    B

    examine the cargo tanks and fittings

    C

    ask the terminal supervisor or his representative

    D

    check the loading order


    正确答案： A
    解析： 暂无解析

  • 第18题：

    单选题
    A ship is responsible for the cargo loaded or unloaded（）.
    A

    only when the cargo is within its rail

    B

    after the cargo is checked by tallymen

    C

    as soon as the cargo loading or unloading begins

    D

    during the time when loading or unloading is going on


    正确答案： B
    解析： 暂无解析

  • 第19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 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


    正确答案： B
    解析： 暂无解析

  • 第20题：

    单选题
    The ship will be responsible for the cargo loaded or unloaded（）.
    A

    only when the cargo is within its rail

    B

    during the time when loading or ynloading is going on

    C

    after the cargo is checked by tallymen

    D

    as soon as loading or discharging begins


    正确答案： A
    解析： 暂无解析

  • 第21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 volume

    B

    the introduction of inert gas into a gas free tank for the purpose of reducing the oxygen content to below 8% by volume

    C

    the introduction of inert gas into a cargo tank during cargo discharge to replace the volume of discharged cargo

    D

    All of the above


    正确答案： C
    解析： 暂无解析

  • 第22题：

    单选题
    Which organization would conduct a survey of the insulation in a reefer compartment prior to loading cargo? （）
    A

    PRC Customs Service

    B

    OSHA

    C

    CCS

    D

    CCIQ


    正确答案： D
    解析： 暂无解析

  • 第23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 less

    B

    10% or less

    C

    15% or less

    D

    20% or less


    正确答案： A
    解析： 暂无解析

相关内容