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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 volume

题目

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

相似考题

1.An inert gas system on a tanker should be used to ______.A.prevent the generation of flammable or combustible gas in tanksB.blow out cargo lines to prevent the build up of gas concentrationsC.dilute tank atmospheres to keep gas concentrations below the lower explosive limitD.prevent fires in the pumproom by continually displacing flammable vapors

2.A cargo tank that is initially gas freed，can be inerted by introducing inert gas by a process known as ______.A.dilutionB.displacementC.precipitationD.Either A or B

3.The purpose of inert gas systems aboard tank vessels is to ______.A.allow sufficient oxygen in the tank to sustain lifeB.prevent outside air from entering the tankC.provide increase in cargo discharge pressureD.comply with double hull pollution prevention regulations

4.How does an inert gas system on a tanker function to prevent explosions in cargo tanks?A.De-energizes the "charged mist" effectB.Maintains a positive pressure on the vent header to cool the flammable vaporsC.Inert gas filters out the flammable vapors from the cargo tank spacesD.Inert gas dilutes the flammable vapor and air concentrations to keep them below the lower explosive limit

更多“Inerting means ______.A.The introduction of inert gas into a tank with the object of reduc ”相关问题

  • 第1题：

    Which action must be taken when an individual cargo tank is closed off from the inert gas system by the tank isolation valve?

    A.The tank must be gas freed

    B.The tank must be ballasted

    C.The tank must be vented to the atmosphere

    D.The bypass valve must also be closed


    正确答案：C

  • 第2题：

    ______ shall be provided in every cargo tank and slop tank in accordance with the appropriate Resolutions．

    A.A load on top system

    B.Direct line system

    C.Circle line system

    D.An inert gas system


    正确答案：D

  • 第3题：

    The use of portable electrical equipment in the pumproom on tank barges is prohibited unless ______．

    A.The pumproom is gas-free

    B.Spaces with bulkheads common to the pumproom are either gas-free，inert，filled with water，or contain grade E liquid

    C.All other compartments in which flammable vapors and gases may exist are closed and secured

    D.All of the above


    正确答案：D

  • 第4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5题：

    Which statement about inert gas pressures in a cargo tank is TRUE ________．

    A.The pressures of the inert gas in the tank may create excessive pressure at the pump while discharging

    B.Gas pressures should be maintained at the highest permissible level throughout the discharging process

    C.High gas pressures may cause pyrophoric oxidation in the tank

    D.High gas pressures may cause loss of suction when stripping


    正确答案：B

  • 第6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7题：

    单选题
    How does an inert gas system on a tanker function to prevent explosions in cargo tanks? （）
    A

    De-energizes the charged mist effect

    B

    Maintains a positive pressure on the vent header to cool the flammable vapors

    C

    Inert gas filters out the flammable vapors from the cargo tank spaces

    D

    Inert gas dilutes the flammable vapor and air concentrations to keep them below the lower explosive limit


    正确答案： D
    解析： 暂无解析

  • 第8题：

    单选题
    The purpose of inert gas systems aboard tankers is to（）.
    A

    allow sufficient oxygen in the tank to sustain life

    B

    prevent outside air from entering the tank

    C

    provide more discharge pressure

    D

    comply with pollution regulations


    正确答案： D
    解析： 暂无解析

  • 第9题：

    单选题
    A cargo tank that is initially gas freed，can be inerted by introducing inert gas by a process known as（）.
    A

    dilution

    B

    displacement

    C

    precipitation

    D

    Either A or B


    正确答案： B
    解析： 暂无解析

  • 第10题：

    单选题
    You are discharging cargo and the inert gas system is in operation to inert the tanks. The pressure in a tank being discharged starts to drop below the allowable limit. What action should you take? （）
    A

    Cut in another IG fan to increase gas flow

    B

    Open the pressure control valve until the pressure increases

    C

    Open the tank isolation valve to the fully open position

    D

    Reduce the pumping rate


    正确答案： D
    解析： 暂无解析

  • 第11题：

    单选题
    An inert gas system on a tanker should be used to（）.
    A

    prevent the generation of flammable or combustible gas in tanks

    B

    blow out cargo lines to prevent the build up of gas concentrations

    C

    dilute tank atmospheres to keep gas concentrations below the lower explosive limit

    D

    prevent fires in the pumproom by continually displacing flammable vapors


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    （）shall be provided in every cargo tank and slop tank in accordance with the appropriate Resolutions.
    A

    A load on top system

    B

    Direct line system

    C

    Circle line system

    D

    An inert gas system


    正确答案： D
    解析： 暂无解析

  • 第13题：

    You are discharging cargo and the inert gas system is in operation to inert the tanks. The pressure in a tank being discharged starts to drop below the allowable limit. What action should you take?

    A.Cut in another IG fan to increase gas flow

    B.Open the pressure control valve until the pressure increases

    C.Open the tank isolation valve to the fully open position

    D.Reduce the pumping rate


    正确答案：D

  • 第14题：

    Before discharge of cargo tank ballast is undertaken，______．

    A.the deck isolating valve is open

    B.flue gas isolating valve

    C.blower suction valve

    D.blower discharge valve


    正确答案：A

  • 第15题：

    What is NOT a requirement for the safe and effective use of a crude oil washing system ________．

    A.Strip all tanks and remove the bottom residue

    B.Use an inert gas system while washing tanks

    C.Use portable washing machines to reach areas obscured by structural members in the tanks

    D.Debottom the tank used as the source for the tank cleaning machines


    正确答案：C

  • 第16题：

    When a tank is to be gas freed after washing，the concentration of hydrocarbon vapour should be reduced by purging the inerted cargo tank with ______．

    A.the oxygen

    B.the gas

    C.the inert gas

    D.the hydrocarbon vapour


    正确答案：C

  • 第17题：

    You are planning to use the crude oil washing system on your tanker．What is required to prevent electrostatic buildup in the tanks ________．

    A.The portable machines should be set at the proper drop for the first wash before the fixed machines are used

    B.The tank used as the source for the tank cleaning machines should be debottomed for at least one meter

    C.The inert gas system must reduce the oxygen content in the tank to at least 18%

    D.The fixed machines must be operated simultaneously with the portable machines to equalize the electrostatic potential


    正确答案：B

  • 第18题：

    单选题
    The purpose of inert gas systems aboard tank vessels is to（）.
    A

    allow sufficient oxygen in the tank to sustain life

    B

    prevent outside air from entering the tank

    C

    provide increase in cargo discharge pressure

    D

    comply with double hull pollution prevention regulations


    正确答案： C
    解析： 暂无解析

  • 第19题：

    单选题
    A flame screen（）.
    A

    permits the passage of vapor but not of flame

    B

    prevents the passage of flammable vapors

    C

    prevents inert gas from leaving a tank

    D

    permits vapors to exit but not enter a tank


    正确答案： A
    解析： 暂无解析

  • 第20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21题：

    单选题
    What action must be taken when an individual cargo tank is closed off from the inert gas system by the tank isolation valve?（）
    A

    The tank must be gas freed

    B

    The tank must be ballasted

    C

    The tank must be vented to the atmosphere

    D

    The bypass valve must also be closed


    正确答案： A
    解析： 暂无解析

  • 第22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23题：

    单选题
    An inert gas system on a tanker should be used to（）.
    A

    prevent the generation of flammable or combustible gas in tanks

    B

    blow out cargo lines to prevent gas concentrations

    C

    dilute tank atmospheres to keep gas concentrations below the lower explosive limit

    D

    prevent fires in the pumproom by continually displacing flammable vapors


    正确答案： D
    解析： 暂无解析

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