What alarm is NOT found on an inert gas system ________．A.Low oxygen alarmB.Low pressure alarmC.Scrubber high water level alarmD.Deck seal low water alarm

题目

What alarm is NOT found on an inert gas system ________．

A.Low oxygen alarm

B.Low pressure alarm

C.Scrubber high water level alarm

D.Deck seal low water alarm

相似考题

1.When anaerobic bacteria convert the sewage to an inert sludge, .A.no oxygen is neededB.oxygen is necessaryC.oxygen is given offD.no gas is produced

2.Which method is used to supply inert gas from a flue gas system to the cargo tanks?A.Exhaust gas pressure from the stackB.High capacity fanC.Inert gas compressorD.Natural aspiration

3.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 flowB.Open the pressure control valve until the pressure increasesC.Open the tank isolation valve to the fully open positionD.Reduce the pumping rate

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“What alarm is NOT found on an inert gas system ________.A.Low oxygen alarmB.Low pressure a ”相关问题

  • 第1题：

    Which of the listed functions is the purpose of a gas scrubber in an inert gas generation system ________．

    A.Cools the inert gas

    B.Maintains the oxygen content at 5% by volume

    C.Drains off static electricity in the inert gas

    D.Maintains the water seal on the gas main


    正确答案：A

  • 第2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3题：

    Using an inert gas system on a tanker has which advantage（s）________．

    A.Provides for faster loading

    B.Lowers oxygen content in the tank

    C.Provides better fuel economy

    D.All of the above


    正确答案：B

  • 第4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5题：

    Which statement about the inert gas system is TRUE ________．

    A.Boiler soot blowers should never be used when the IG system is operating

    B.The boiler will produce the best quality of flue gas for the IG system when the boiler load is very light

    C.The boiler will produce the most quantity of flue gas for the IG system when the boiler load is very light

    D.Flue gas with excessive oxygen content is de-oxygenated in the scrubber


    正确答案：A

  • 第6题：

    单选题
    Using an inert gas system on a tanker has which advantage(s)? （）
    A

    Provides for faster loading

    B

    Lowers oxygen content in the tank

    C

    Provides better fuel economy

    D

    All of the above


    正确答案： B
    解析： 暂无解析

  • 第7题：

    单选题
    After the initial cleaning of flue gas in an inert gas system the gas is passed through what device for final cleaning?（）.
    A

    Scrubber

    B

    Demister

    C

    Deck water seal

    D

    Final filter


    正确答案： B
    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
    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10题：

    单选题
    SOLAS regulations require that the inert gas system shall be capable of delivering inert gas with an oxygen content of not more than what percentage?（）
    A

    5%

    B

    8%

    C

    6%

    D

    3%


    正确答案： D
    解析： 暂无解析

  • 第11题：

    单选题
    The purpose of the deck seal in an inert gas system is to prevent（）.
    A

    flammable vapors from entering machinery space

    B

    flue gas escaping to atmosphere

    C

    inert gas escaping to atmosphere

    D

    air entering inert gas system


    正确答案： D
    解析： 暂无解析

  • 第12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

  • 第13题：

    After the initial cleaning of flue gas in an inert gas system the gas is passed through what device for final cleaning ________．

    A.Scrubber

    B.Demister

    C.Deck water seal

    D.Final filter


    正确答案：B

  • 第14题：

    What is NOT a function of the scrubber of an inert gas system ________．

    A.Cool the inert gas

    B.Remove particulate matter like soot

    C.Maintain pressure in the tanks

    D.Remove chemical impurities


    正确答案：C

  • 第15题：

    What is the major function of the deck water seal in an inert gas system ________．

    A.Relieve excessive overpressures in the system

    B.Isolate hazardous from nonhazardous areas

    C.Prevent the flow of inert gas into closed tanks

    D.Remove any leftover water or soot after the gas has been scrubbed


    正确答案：B

  • 第16题：

    You are planning to use a crude oil washing system．What precaution must be taken with the tank as the source for the washing machines ________．

    A.It must be debottomed and the level lowered by at least one meter

    B.The oil in the source tank must be sampled for compatibility

    C.The source tank must have been crude oil washed at least once in the past 150 days

    D.The inert gas system must lower the oxygen content to a maximum of 12% oxygen in the tank


    正确答案：A

  • 第17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18题：

    单选题
    After the initial cleaning of fule gas in an inert gas system is passed through what devoce for final cleaning?（）.
    A

    Scrubber

    B

    Demister

    C

    Deck water seal

    D

    Final filter


    正确答案： C
    解析： 暂无解析

  • 第19题：

    单选题
    The deck water seal of the inert gas system（）.
    A

    cools the inert gas and prevents soot from entering the cargo tanks

    B

    acts as an emergency system shutdown when the inlet pressures exceed the safe working pressure in the hazardous zone

    C

    prevents the backflow of hydrocarbon gasses into nonhazardous areas

    D

    relieves sudden large overpressures in the system


    正确答案： D
    解析： 暂无解析

  • 第20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21题：

    单选题
    Which method is used to supply inert gas from a flue gas system to the cargo tanks?（）
    A

    Exhaust gas pressure from the stack

    B

    High capacity fan

    C

    Inert gas compressor

    D

    Natural aspiration


    正确答案： D
    解析： 暂无解析

  • 第22题：

    单选题
    What alarm is NOT found on an inert gas system? （）
    A

    Low oxygen alarm

    B

    Low pressure alarm

    C

    Scrubber high water level alarm

    D

    Deck seal low water alarm


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    The component in an inert gas system used for cleaning the gas of solid and sulphur combustion products，while simultaneously cooling the inert gas，is called the（）.
    A

    filter

    B

    cooler

    C

    scrubber

    D

    purifier


    正确答案： B
    解析： 暂无解析

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